Lesson 30
Risk Per Trade and Maximum Drawdown
Turn an account allowance into a position decision, measure losses from a preceding peak, and define what changes when a drawdown trigger is reached.

The allowance and the outcome can differ.
Hypothetical NIFTY call · strike 25,000 · entry ₹100 per unit · 65 units · ₹100 toy charges · cash-settled index option
What does your risk rule actually control?
Mr. Chartist will connect the plan for one position with the record of the whole account. First work out what the allowance measures. Then check what happened to the fills, the open exposure and the equity. A written trigger tells you what to do next; it cannot promise where the next loss stops.
By the end you will be able to answer
- What does a per-trade loss allowance actually control?
- How many lots does the allowance buy, and what can go wrong with the exit?
- How do you measure a drawdown?
You are looking at a NIFTY Call on an option chain. In this fictional example the premium is ₹100 per unit and your planned exit is ₹60. Beside an account worth ₹5,00,000 you have written a ₹5,000 allowance. Before you send the order, ask what that allowance really is. Is it the loss you intend to accept, the loss the option can produce, or the most the account can possibly lose?
Risk per trade is the allowance you give one position, measured in a way you state. Realised loss is what the finished position actually lost after fills and charges. Drawdown is a different question: how far has your account fallen below the highest value it reached? Many trades that each looked planned can add up to one bigger fall.
We follow that bought NIFTY Call, then use separately labelled account examples for drawdown, deposits, smaller sizing and combined positions. Prices are fictional, a teaching lot is 65 units, and charges are rough estimates. The percentages are example choices, not allocations suited to every reader.
Updated
What does a per-trade loss allowance actually control?
Learn what a per-trade allowance controls.
MayaMr. Chartist, I wrote a ₹5,000 allowance for this Call. So I cannot lose more than that, right?
The allowance is the loss you decide to accept before the order. It does not control what the market does after.
What if my exit order does not fill at ₹60?
Then the result comes from the actual fills. In our example, a later sale at ₹40 lost ₹4,000 after rough charges, against ₹2,700 at the plan.
And drawdown is the same as a loss?
No. Drawdown is the fall from the highest value the account reached. A deposit raises the balance, but it does not recover the trading loss.
A drawdown trigger changes how much you risk on the next trades. It cannot shrink a loss that is already running.
Mr. ChartistShort answer: it controls the loss you decide to accept before you place the order. It does not control what the market does after you place it. An allowance is a rupee amount you set against the trade, based on a stated way of measuring loss. The Start course calls it a loss budget (risk management 101). Account equity here means cash plus open positions at their current value, after costs. Say when you measure it, and keep it apart from the cash you have free to pay for the trade.
In our example, equity before the trade is ₹5,00,000 and the allowance is 1%, which is ₹5,000. The percentage is a teaching choice, not a claim that it is safe or best. The trade is a bought cash-settled NIFTY Call, strike 25,000, bought at ₹100 per unit. A teaching lot is 65 units, and you plan to sell the whole position at ₹60. Prices and lot size are fictional.
What does the ₹5,000 allowance actually limit?
One bought NIFTY Call: strike 25,000, entry ₹100 per unit, 65 assumed units. Three outcomes against the same ₹5,000 allowance.
Common policy and cost assumptions
- Starting marked account equity
- ₹5,00,000
Measured before this trade; not the same as free cash.
- Chosen account allowance
- ₹5,000
1% of that equity, the same reference for every row.
- Estimated charges per completed teaching lot
- ₹100
A rough estimate, not a broker tariff or an upper limit.
| Call · completed alternative | Gross position result | Result after toy charges | Against the common ₹5,000 allowance |
|---|---|---|---|
| Assumed fill at planned ₹60 | Gross position result−₹2,600 | Result after toy charges−₹2,700 · 0.54% of starting equity | Against the common ₹5,000 allowance₹2,300 below allowance |
| Separate later fill at ₹40 | Gross position result−₹3,900 | Result after toy charges−₹4,000 · 0.80% of starting equity | Against the common ₹5,000 allowance₹1,000 below allowance; exceeds the planned loss |
| Expires with zero exercise value | Gross position result−₹6,500 | Result after toy charges−₹6,600 · 1.32% of starting equity | Against the common ₹5,000 allowance₹1,600 above allowance |
The ₹40 exit loses ₹4,000, more than the planned ₹2,700 but under the allowance. Expiry at zero loses ₹6,600 and goes over it. The allowance shapes the plan; it does not fix the result.
₹60 is a planned exit. A sell stop-limit at ₹60 cannot fill at ₹40 and may stay unfilled; the ₹40 row assumes a changed order and enough buyers. Fills already include price slippage. The 65 units are assumed. Gross option loss is capped at the premium; charges are extra.
Check the loss arithmetic
Prices are rupees per option unit. Multiply the entry-to-exit difference by the assumed units, then add the separate toy charge estimate once.
Allowance = ₹5,00,000 × 1% = ₹5,000Planned complete exit: (₹100 − ₹60) × 65 + ₹100 = ₹2,700 lossLater assumed complete exit: (₹100 − ₹40) × 65 + ₹100 = ₹4,000 lossZero exercise value: ₹100 × 65 + ₹100 = ₹6,600 lossShare of starting equity = loss including estimated charges / starting marked equity × 100
Look at three outcomes for the same position. Selling at the planned ₹60 loses ₹2,700 after rough charges. A later sale at ₹40 loses ₹4,000. That is more than the plan, though still under the account allowance. If the Call expires with no exercise value, you lose ₹6,600, which is above the allowance.
For a bought cash-settled index option, the option loss itself cannot go beyond the ₹6,500 premium, because the exercise receipt cannot be negative. Charges come on top. The ₹100 of charges here is a rough estimate for each finished case, not a tariff or a limit. The smaller planned loss depends on how your sale executes, and writing an allowance down does not make the sale happen at ₹60.
How many lots does the allowance buy, and what can go wrong with the exit?
Turn the allowance into lots and check the exit.
Short answer: it depends on which loss you size against. The lesson on position sizing turned an allowance into whole lots. Here the same ₹5,000 allows floor(5,000 / 2,700) = 1 lot if you size on the planned exit, and floor(5,000 / 6,600) = 0 lots if you size on the full premium plus charges. These are two different questions. A zero means this position does not fit that rule. Rounding up, or raising the allowance to fit, replaces the rule you started with.
The ₹60 is a planned exit, not a guaranteed price. A sell stop-limit with a ₹60 limit cannot fill at ₹40. Once triggered, it may sit unfilled if buyers will not pay that price. Our ₹40 case assumes a later, changed order, enough buyers and a complete sale. A price on the screen does not mean every unit could trade there. Risk management 101 shows the same gap with shares.
If only part of the position sells, record the loss on the units sold and the exposure on the units still open as two separate things. For a finished trade, take the result from the actual fills and booked charges. Do not subtract slippage a second time when it is already inside the fill prices.
A passed sizing check still leaves a funding check. This bought index Call needs the premium in cash. A stock option settled by delivery can need far more: an exercised long Call needs money to buy the shares, and an exercised long Put needs the shares to deliver, subject to netting rules. The premium limit does not remove those needs. Margin, leverage and pledging explains what is held against a position. Check the real contract, lot size and settlement before using this arithmetic.
How do you measure a drawdown?
Measure a fall from the highest value reached.
Short answer: measure from the highest value the account has already reached, not from where it began. At each observation, take the running peak, subtract the current equity and divide by the peak. The maximum drawdown is the largest of these declines in the period you are studying. Both the numbers and their order matter.
Compare each mark with a peak already reached
Six account marks in order, with open positions and costs, and no deposits or withdrawals. The dashed line is the highest equity so far.
- Marked account equity
- Running peak reached so far
- Drawdown from the running peak
20%Drawdown from the running peak: widest at observation 2, ₹4,40,000 against ₹5,50,000.
Axis cropped to ₹4,00,000–₹6,00,000. Lines join the six marks; they are not a path between them. Observation numbers show order, not elapsed time.
| Series | Ordered observation · 0–5 | Marked account equity · ₹ |
|---|---|---|
| Marked account equity | 0 | 5,00,000 |
| Marked account equity | 1 | 5,50,000 |
| Marked account equity | 2 | 4,40,000 |
| Marked account equity | 3 | 5,28,000 |
| Marked account equity | 4 | 5,70,000 |
| Marked account equity | 5 | 5,13,000 |
| Running peak reached so far | 0 | 5,00,000 |
| Running peak reached so far | 1 | 5,50,000 |
| Running peak reached so far | 2 | 5,50,000 |
| Running peak reached so far | 3 | 5,50,000 |
| Running peak reached so far | 4 | 5,70,000 |
| Running peak reached so far | 5 | 5,70,000 |
| Mark | Equity | Running peak | Current drawdown |
|---|---|---|---|
| Observation 0 | Equity₹5,00,000 | Running peak₹5,00,000 | Current drawdown0% |
| Observation 1 | Equity₹5,50,000 | Running peak₹5,50,000 | Current drawdown0% |
| Observation 2 | Equity₹4,40,000 | Running peak₹5,50,000 | Current drawdown20% |
| Observation 3 | Equity₹5,28,000 | Running peak₹5,50,000 | Current drawdown4% |
| Observation 4 | Equity₹5,70,000 | Running peak₹5,70,000 | Current drawdown0% |
| Observation 5 | Equity₹5,13,000 | Running peak₹5,70,000 | Current drawdown10% |
The deepest fall is 20%: ₹5,50,000 at observation 1 to ₹4,40,000 at observation 2. The latest is 10%, from ₹5,70,000 to ₹5,13,000. The later ₹5,70,000 peak cannot be paired with the earlier ₹4,40,000 low.
The maximum describes these marks, not a future limit. Closing marks can miss a fall during the day. Zero or negative equity needs separate treatment.
Inspect the chronological drawdown calculation
E is marked equity; P is the greatest equity observed up to that mark. Drawdown is displayed as a positive percentage decline.
P_t = max(E_0, …, E_t); D_t = (P_t − E_t) / P_tObserved maximum drawdown = max(D_0, …, D_5)Observation 2: (550000 − 440000) / 550000 = 20%Observation 5: (570000 − 513000) / 570000 = 10%
This is a separate account with six marks in order. They include open positions and costs, and no money is added or taken out. At observation 2, equity is ₹4,40,000 after a ₹5,50,000 peak, a decline of 20%. A later high of ₹5,70,000 cannot be paired with that earlier low. At the last mark, ₹5,13,000 is 10% below the new peak, while the deepest drawdown seen is still 20%.
Recovery uses the smaller base. To go from ₹4,40,000 back to ₹5,50,000 takes a 25% gain. A 20% gain only reaches ₹5,28,000, which is still 4% short. This is arithmetic, not a prediction that recovery will happen.
A real report names its dates, how often it samples, how it values positions and how it treats costs. Closing marks can miss a fall during the day, and a ledger of closed trades leaves out unrealised changes. A past maximum drawdown describes the past. It is not a ceiling for future losses. Zero or negative equity needs separate treatment, not an ordinary recovery percentage.
Does a deposit count as recovering a loss?
Keep deposits apart from trading performance.
Short answer: no. A deposit raises the balance, not the trading performance. Account value tells you how much money is in the account. A flow-adjusted performance series tells you how the money you invested actually did. Keep deposits and withdrawals apart from gains and losses.
In this separate example, every account mark is taken after that period's outside cash flow. The ₹1,00,000 deposit arrives only at the end of the second period, and no money moves earlier inside any period. That timing matters. Take the deposit out of the ending value before comparing it with the value before, then chain the period returns into an index that starts at 100.
A deposit raises the balance without recovering performance
A separate account. Every mark is after that period’s cash flow. The ₹1,00,000 deposit arrives at the end of the second period.
- Performance index after removing end flowsSolid line
- Index running peakDashed line
Flow-adjusted performance index · start = 100
Ordered observation · 0–3
Index axis cropped to 80–105. Rupee balances and deposits are in the ledger. Lines join period-end marks only.
| Series | Ordered observation · 0–3 | Flow-adjusted performance index · start = 100 |
|---|---|---|
| Performance index after removing end flows | 0 | 100 |
| Performance index after removing end flows | 1 | 90 |
| Performance index after removing end flows | 2 | 90 |
| Performance index after removing end flows | 3 | 99 |
| Index running peak | 0 | 100 |
| Index running peak | 1 | 100 |
| Index running peak | 2 | 100 |
| Index running peak | 3 | 100 |
| Mark | Account after flow | End-interval flow | Performance index |
|---|---|---|---|
| Observation 0 · Start | Account after flow₹5,00,000 | End-interval flow— | Performance index100 |
| Observation 1 · Loss interval | Account after flow₹4,50,000 | End-interval flow₹0 | Performance index90 |
| Observation 2 · Deposit at interval end | Account after flow₹5,50,000 | End-interval flow+₹1,00,000 | Performance index90 |
| Observation 3 · Gain interval | Account after flow₹6,05,000 | End-interval flow₹0 | Performance index99 |
The first period loses 10%, so the index goes from 100 to 90. The deposit period earns 0%, so the index stays 90 despite the higher balance. A 10% gain then brings it to 99: current drawdown 1%, maximum 10%. The ₹6,05,000 balance includes the deposit.
A teaching index, not a compliance claim. Withdrawals carry a negative sign. Flows at other times need their own dates and valuations. Marks between observations can hide losses.
Inspect the end-of-interval flow convention
V_t is account value after its signed end flow C_t. No earlier flow occurs in the interval. Link the interval returns from an initial index of 100.
r_t = (V_t − C_t) / V_(t−1) − 1; I_t = I_(t−1) × (1 + r_t)Observation 1: r = (450000 − 0) / 500000 − 1 = −10%; index = 90Observation 2: r = (550000 − 100000) / 450000 − 1 = 0%; index = 90Observation 3: r = (605000 − 0) / 550000 − 1 = +10%; index = 99Final current drawdown = (100 − 99) / 100 = 1%
The first period loses 10%, so the index falls to 90. The deposit lifts the balance from ₹4,50,000 to ₹5,50,000, but the index stays at 90. The next period gains 10%, which takes the index to 99. The current drawdown is still 1%, and the largest seen is still 10%, even though the balance ends at ₹6,05,000.
Deposits or withdrawals at other times need their actual dates and a value for each sub-period, so this end-of-period shortcut cannot be reused as it is. A withdrawal carries a negative sign. Keep the raw balances and the performance index together in your record. This index is a teaching tool and does not claim to meet any formal investment performance standard.
What should a drawdown trigger change?
See what a drawdown rule changes and what it cannot.
Short answer: it changes how much you risk on the next trades. It does not stop a loss that is already running. An account rule can cut the allowance, call for a review or pause new entries after a measured fall. Write the measurement and the action down before you place orders. A loss from today's opening balance and a drawdown from an earlier peak are different measures, and neither a percentage nor a review step makes a strategy profitable.
The figure compares two rules over the same twelve made-up losses. Each trial loses its whole allowance, worked out from the equity just before it. Both rules start at 2%. One drops to 1% for later trials once the drawdown reaches 10%. This uses any position size, with no whole lots, no overlapping trades, no deposits, no gains and no extra costs. It is separate from our NIFTY order.
The trigger changes the next allowance
Two rules face the same 12 full-allowance losses from ₹5,00,000. Both risk 2% through trial 6; the reduced rule risks 1% from trial 7.
- 2% throughoutSolid line
- 2%, then 1% from trial 7Dashed line
Account equity · ₹ (ticks in lakh)
Completed loss trial
- After trial 6: 11.4158% drawdown; reduce from the next trial
Axis cropped to ₹3,80,000–₹5,10,000. Lines join completed trials. Solid and dashed lines tell the two rules apart; they do not mean profit or loss.
| Series | Completed loss trial | Account equity · ₹ (ticks in lakh) |
|---|---|---|
| 2% throughout | 0 | 5,00,000 |
| 2% throughout | 1 | 4,90,000 |
| 2% throughout | 2 | 4,80,199.9999999999 |
| 2% throughout | 3 | 4,70,595.9999999999 |
| 2% throughout | 4 | 4,61,184.08 |
| 2% throughout | 5 | 4,51,960.3983999999 |
| 2% throughout | 6 | 4,42,921.190432 |
| 2% throughout | 7 | 4,34,062.76662336 |
| 2% throughout | 8 | 4,25,381.5112908927 |
| 2% throughout | 9 | 4,16,873.8810650749 |
| 2% throughout | 10 | 4,08,536.4034437733 |
| 2% throughout | 11 | 4,00,365.6753748979 |
| 2% throughout | 12 | 3,92,358.3618673999 |
| 2%, then 1% from trial 7 | 0 | 5,00,000 |
| 2%, then 1% from trial 7 | 1 | 4,90,000 |
| 2%, then 1% from trial 7 | 2 | 4,80,200 |
| 2%, then 1% from trial 7 | 3 | 4,70,596 |
| 2%, then 1% from trial 7 | 4 | 4,61,184.08 |
| 2%, then 1% from trial 7 | 5 | 4,51,960.3984 |
| 2%, then 1% from trial 7 | 6 | 4,42,921.190432 |
| 2%, then 1% from trial 7 | 7 | 4,38,491.97852768 |
| 2%, then 1% from trial 7 | 8 | 4,34,107.0587424032 |
| 2%, then 1% from trial 7 | 9 | 4,29,765.9881549791 |
| 2%, then 1% from trial 7 | 10 | 4,25,468.3282734294 |
| 2%, then 1% from trial 7 | 11 | 4,21,213.6449906951 |
| 2%, then 1% from trial 7 | 12 | 4,17,001.5085407881 |
| After trial | 2% throughout · equity | Reduced policy · equity | Reduced-policy action |
|---|---|---|---|
| 0 · start | 2% throughout · equity₹5,00,000.00 | Reduced policy · equity₹5,00,000.00 | Reduced-policy action2% for trial 1 |
| 5 | 2% throughout · equity₹4,51,960.40 | Reduced policy · equity₹4,51,960.40 | Reduced-policy action2% for trial 6; trigger not reached |
| 6 | 2% throughout · equity₹4,42,921.19 | Reduced policy · equity₹4,42,921.19 | Reduced-policy actionTrial 6 used 2%; trial 7 uses 1% |
| 7 | 2% throughout · equity₹4,34,062.77 | Reduced policy · equity₹4,38,491.98 | Reduced-policy actionTrial 7 used 1%; next trial stays at 1% |
| 12 | 2% throughout · equity₹3,92,358.36 | Reduced policy · equity₹4,17,001.51 | Reduced-policy actionEnd of this 12-trial comparison |
The 10% trigger is ₹4,50,000, but trial 6 ends at ₹4,42,921.19, 11.4158% below the peak, already past it. After trial 12: ₹3,92,358.36 unchanged (21.53% down) versus ₹4,17,001.51 reduced (16.60%). Both keep falling.
Each trial loses its whole allowance, measured on equity just before it. No gains, deposits, extra costs or whole lots. The trigger is checked after each trial and applies to later trades. Real rules also say how often you check, what happens to open positions and when you restart. Smaller size does not promise a loss limit or a recovery.
Check the equal-horizon calculation
Calculate with full precision and round only the displayed values. The rule changes sizing after the sixth completed loss; it does not resize that loss retrospectively.
Trial 6 equity = 5,00,000 × 0.98^6 = ₹4,42,921.19Unchanged trial 12 equity = 5,00,000 × 0.98^12 = ₹3,92,358.36Reduced trial 12 equity = 5,00,000 × 0.98^6 × 0.99^6 = ₹4,17,001.51Drawdown = (starting peak − current equity) / starting peak × 100
After trial 5, the drawdown is about 9.61%, so trial 6 still risks 2%. That loss takes equity to ₹4,42,921.19, a drawdown of about 11.42%. The threshold is now crossed, but the smaller allowance starts at trial 7. It cannot shrink trial 6 after the fact. After trial 12 both paths are below the start, and the one with smaller later allowances keeps more money in this all-loss sequence.
Smaller size also means smaller gains when trades win. This comparison gives no probability of loss and no proof that one rule is better in future. In practice, moves between your checks, open orders and poor exits can lose more than a trigger intends.
Write the restart conditions beside the trigger. Reconcile equity, fills, pending orders and exposure, review any breach of the plan, and record the new allowance and the time it starts. Using different levels to enter and to leave the reduced state stops you flipping at one line. The values are your own policy choices. A pause limits new risk, but open positions, exits, funding and settlement still need your attention. A deposit or one good trade does not show the reason for the pause is gone. Keep the full loss history after any review.
How do you add up risk across positions?
Add up allowances and test one shared move.
Short answer: add the allowances, then test one shared scenario. Portfolio heat here is the sum of the allowances you assigned to each trade, divided by the same account equity. It is a budgeting habit. The amounts must use the same units and the same review time. Adding them does not assume the trades are independent, but how the trades relate matters when you ask about shocks that hit them all together.
The ledger holds a long NIFTY Call, a separate long index future and a matched Call credit spread. Their stress results describe one assumed shared scenario. They are not live prices or outputs of a pricing model, and the fixture does not give a full contract book or valuation horizon to check them against.
Add allowances, then reconcile one common scenario
Three positions on the same ₹5,00,000 equity. The stress results are supplied assumptions for one shared scenario, not live marks.
| Position | Assigned loss allowance | Supplied common-scenario P&L | Usual directional exposure |
|---|---|---|---|
| Long NIFTY Call | Assigned loss allowance₹2,700 | Supplied common-scenario P&L−₹4,000 | Usual directional exposureBullish |
| Separate long index future | Assigned loss allowance₹5,000 | Supplied common-scenario P&L−₹8,000 | Usual directional exposureBullish |
| Matched Call credit vertical | Assigned loss allowance₹4,550 | Supplied common-scenario P&L+₹1,300 | Usual directional exposureNeutral to bearish |
| Total on the common equity base | Assigned loss allowance₹12,250 · heat 2.45% | Supplied common-scenario P&L−₹10,700 · loss 2.14% | Usual directional exposureNeither total is a promised loss ceiling. |
Allowances add to ₹12,250, or 2.45% heat. In the shared scenario the vertical's +₹1,300 offsets part of the two losses, leaving −₹10,700. That gain does not cancel its allowance.
Allowances add up whether or not the positions are independent. The stress results are not forecasts or worst cases from different market states, and other scenarios, costs or fills may lose more. Blue marks the Call contract; profit and loss use their own colours. Margin is collateral, not an allowance or a loss cap.
Reconcile the two totals
Sum nonnegative assigned allowances for heat. Sum signed supplied P&Ls within this one common scenario for its net result; preserve the gain’s positive sign.
Assigned allowances = ₹2,700 + ₹5,000 + ₹4,550 = ₹12,250Allowance heat = 12,250 / 5,00,000 × 100 = 2.45%Common-scenario P&L = −₹4,000 −₹8,000 +₹1,300 = −₹10,700Common-scenario loss share = 10,700 / 5,00,000 × 100 = 2.14%
The allowances total ₹12,250, which is 2.45% heat on ₹5,00,000. In this scenario the spread gains ₹1,300 and offsets part of the other losses, so the net result is −₹10,700, a 2.14% loss. Keep its positive sign. That gain does not cancel its allowance, and neither total is a cap on loss. Putting together worst cases that cannot happen in the same market answers a different question.
The matched Call credit spread sells a lower-strike Call and buys a higher-strike Call, same underlying and expiry, equal quantity. It usually leans neutral to bearish, while a bought Call leans bullish, if other inputs stay fixed. Contract type and profit or loss are separate things. Different names on a ledger do not prove diversification. Margin, eligible collateral, premium cash and settlement funds need their own checks, and collateral is neither a planned loss nor a cap on loss.
What should you record so you can learn from a trade?
Record the plan beside what really happened.
Short answer: the plan, written before the trade, kept beside what really happened. Another reader should be able to rebuild your decision and its result. Record the date, contract, loss basis, estimated costs and rule version. Label each item correctly: a made-up scenario, a paper trade, a real fill and an open mark are different things, and an unfilled order has no realised return. The record below is hypothetical.
Keep the original plan beside the later evidence
A short record for one bought NIFTY Call. The later exit is an assumed outcome, not a real trade.
| Record | Original plan | Later assumed observation or review |
|---|---|---|
| Position and prices | Original planLong NIFTY Call, strike 25,000; 65 assumed units bought at ₹100 per unit. Planned complete exit: ₹60. | Later assumed observation or reviewSeparate complete exit at ₹40 per unit; all 65 units assumed filled. No remaining position in this scenario. |
| Loss basis and net R | Original planOriginal planned loss ₹2,700, including ₹100 estimated toy charges; account allowance ₹5,000. | Later assumed observation or reviewAssumed net result −₹4,000; −1.48R. Keep the original ₹2,700 denominator. |
| Orders and fills | Original planRecord order type, permitted price, identifier, submission/activation time and planned quantity. | Later assumed observation or reviewRecord amendments, pending/cancelled/rejected status and each fill’s time, price and quantity. A ₹60 sell-limit cannot fill at ₹40; this case assumes a revised permitted price or separate order. |
| Equity, flows and open marks | Original planStarting marked equity ₹5,00,000; declare the valuation clock, price source and external-flow treatment. | Later assumed observation or reviewReconcile ending equity, charges and timed deposits/withdrawals. Record remaining units and timestamped unrealised marks if an exit is partial; unknown values stay unknown. |
| Policy action and review | Original planPreserve the dated rule version, chosen trigger, action on new entries/additions and restart conditions. | Later assumed observation or reviewReconcile pending orders and open exposure first. A pause limits new risk; continue managing existing positions, exits and funding. Record any rule change, reason and effective date. |
Net R is the signed net result divided by the loss you planned: −4,000 / 2,700 = −1.48R. Changing the divisor to ₹4,000 afterwards would hide that you left the plan. R is not the ₹5,000 account allowance.
Prices, the 65 units and the ₹100 charges are teaching assumptions. In a real record, tell plans, scenarios, paper trades, fills and open marks apart, match booked costs, and flag missing data. A cancel request is not a confirmed cancel. A deposit is not a trading recovery.
Net R is the signed net result divided by the rupee loss you planned on the original filled position, with the cost rule stated. The separate ₹40 sale gives −₹4,000 against a ₹2,700 plan, which is about −1.48R. Changing the divisor after the loss would hide that you went past your plan. R is not the same as the ₹5,000 account allowance, and it is not an account return.
For real trades, match each fill and booked charge to the account statement. Record the units left after partial exits, marks with their time, the timing of any deposits and the status of pending orders. A request to cancel is not a confirmation that the order is cancelled, and a mark is not a promised sale price. Write unknown for what you do not know. Do not turn it into zero.
Before you change a rule, review the surprises in execution, the times you left the plan and any inputs that changed. Keep the earlier rule version and judge later results apart from the data you used to pick the change. A profit does not prove a good process, and a loss alone does not show the cause. The next lesson extends this idea: a position can look protected while obligations remain.
Before you go
Check yourself
5 questions from this lesson. Pick an answer to see why, then slide on to the next.
Question 1 of 5
01A triggered sell stop-limit has a ₹60 limit, but the available buyer is at ₹40. Which statement is correct?
02For the no-flow equity path ₹5,00,000 → ₹5,50,000 → ₹4,40,000 → ₹5,28,000 → ₹5,70,000 → ₹5,13,000, what are observed maximum and latest current drawdown?
03After a 10% loss, an end-of-interval ₹1,00,000 deposit lifts the account from ₹4,50,000 to ₹5,50,000. What happens to a flow-adjusted performance index that started at 100?
04A rule checks drawdown after each completed trial and reduces the allowance after reaching 10%. Trial five ends at 9.61%; trial six ends at 11.42%. When does the smaller allowance start in this toy?
05Three positions have assigned allowances ₹2,700, ₹5,000 and ₹4,550, and supplied P&Ls −₹4,000, −₹8,000 and +₹1,300 under one common scenario. Which result is correct?

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Questions readers ask
Common questions
01What does the 1% risk-per-trade rule mean, and is 1% safe?
It means the trade may put 1% of your account equity at risk, measured at a stated time. 1% of ₹5,00,000 is ₹5,000. It is a teaching rule, not an exchange requirement, not a universally safe level and not a cap on the realised loss. The loss basis, whole lots, charges, funding and your other open positions still matter.
02How do planned stop loss, full-premium loss and whole-lot sizing differ?
For the example Call, a complete exit at ₹60 gives a planned loss of ₹2,700 including ₹100 estimated charges. Expiry at zero gives ₹6,600. Against ₹5,000, the planned basis allows one 65-unit lot and the full-premium basis allows zero. Keep zero if your chosen basis allows no lot. A ₹60 sell limit cannot fill at ₹40; the ₹40 case assumes a new order and a full fill.
03How is maximum drawdown calculated, and how does it differ from current drawdown?
At each observation, divide the fall from the highest equity so far by that highest value. Maximum drawdown is the largest such fall in the period; current drawdown uses the latest mark. In the example the largest fall is 20% (₹5,50,000 to ₹4,40,000) and the current fall is 10% (₹5,70,000 to ₹5,13,000). Never pair a later peak with an earlier low. A 20% fall needs a 25% gain to recover. None of this predicts the future.
04Does depositing money recover a trading drawdown?
No. A deposit adds money, not performance. In the example a 10% loss takes the performance index from 100 to 90. A ₹1,00,000 deposit lifts the balance from ₹4,50,000 to ₹5,50,000 but leaves the index at 90. A later 10% gain lifts it to 99, still below the earlier peak. Keep raw balances and a flow-adjusted series side by side.
05Can a 10% drawdown trigger prevent the account from losing more than 10%?
No. In the example, the sixth 2% loss leaves an 11.42% drawdown. The rule sees the crossing after that trial and cuts the allowance to 1% from trial seven; it cannot shrink trial six afterwards. Gaps, open positions and unfilled exits can lose more than any trigger. Write down the reduced size, the pause and the restart conditions separately.
06What is portfolio heat, and how is it different from joint stress loss and margin?
Heat is the sum of the allowances divided by equity: ₹12,250 / ₹5,00,000 = 2.45%. Joint stress adds the signed results under one scenario: −₹4,000 − ₹8,000 + ₹1,300 = −₹10,700, a 2.14% loss. The gain offsets losses in that scenario but does not delete its allowance. Margin is a separate collateral requirement. None of the three is the largest possible loss.
07Can this losing sequence estimate risk of ruin or the chance of a future drawdown?
No. Twelve chosen losses show account arithmetic, not how often a strategy loses. A real estimate needs a defined failure event, a time horizon, evidence for the outcomes, assumptions about how trades relate, costs and a sizing rule. Nothing here shows an edge or future survival.
08What should a risk-management journal record after an options trade?
The original allowance, quantity, exit basis and estimated charges; the actual fills and booked charges; and any position still open, with its mark and time. Also record deposits, withdrawals, pending orders and rule changes. Under the lesson convention, −₹4,000 divided by the planned ₹2,700 is −1.48R. Do not change the divisor afterwards. A profit alone does not prove a sound process.
Sources for further reading
15 sources- CME Group — Risk Management and Your Trade Planpredeclared trade, daily and total-exposure rules (US education)
- CME Group — The 2% Rulean explicitly arbitrary example percentage, not a safety guarantee (US education)
- NSE — STPC FAQ Q15stop activation becomes an active order; not every contract’s order-availability catalogue
