The Position Sizing Checklist
The Position Sizing Checklist
Are You Executing Position Sizing Correctly Every Single Trade?
A checklist transforms position sizing from an abstract concept into executable discipline. Professional traders use checklists before every trade, after every trade, and monthly and quarterly for system validation. The checklist serves three functions: preventing common execution errors (wrong position size, violated rules, missed limits), creating a record you can audit later to identify patterns, and forcing a pause before execution that interrupts emotional decision-making.
Most traders skip the checklist phase entirely. They've internalized their sizing rules, they think, so they don't need external verification. This confidence is exactly where mistakes hide. A trader who "always remembers" their 2% risk rule might miss it on one trade out of every 20 due to fatigue, distraction, or complexity. That one missed rule compounds into account damage. The trader who uses a pre-trade checklist never deviates—not because they're disciplined, but because the checklist removes the option to skip.
This chapter provides three checklists—pre-trade execution, post-trade audit, and quarterly system review—that you can print, laminate, and use daily. These aren't suggestions; they're the mechanical steps that prevent account blowups.
Quick definition: A position sizing checklist is a documented list of pre-trade, post-trade, and periodic verification steps that ensure every trade respects your sizing rules, position limits, and account risk boundaries before and after execution.
Key takeaways
- Pre-trade checklists verify position size, stop-loss distance, and daily/weekly limits before you commit capital.
- Post-trade checklists document actual sizing vs. planned sizing and identify deviations for pattern analysis.
- Quarterly reviews measure win-rate changes, largest losses, and account growth to validate sizing assumptions.
- Monthly concentration audits prevent unintended sector, pair, or correlated-position overexposure.
- Annual stress-testing applies historical bad months to current sizing to ensure account survival in drawdowns.
Pre-Trade Execution Checklist
Use this checklist for every single trade before you execute. Print it, keep it on your desk, check each box or mark each line item. The process takes 90 seconds and prevents 90% of position-sizing disasters.
PRE-TRADE POSITION SIZING CHECKLIST
Trade Setup Information
[ ] Entry price: _____________
[ ] Stop-loss price: _____________
[ ] Expected move distance: ___________ (pips/points/%)
[ ] Account balance (current): $_____________
Step 1: Classify Trade Tier
[ ] Tier 1 (high confidence, >55% win rate): ___
[ ] Tier 2 (standard setup, 50-55% win rate): ___
[ ] Tier 3 (speculative, <50% proven): ___
Step 2: Determine Risk Percentage
[ ] Tier 1 sizing: 3.0%? OR 4.0%? [ ] 2% [ ] 3% [ ] 4%
[ ] Tier 2 sizing: 2.0%? [ ] 1.5% [ ] 2.0% [ ] 2.5%
[ ] Tier 3 sizing: 1.0%? [ ] 0.5% [ ] 1.0% [ ] 1.5%
Step 3: Calculate Dollar Risk
Dollar Risk = Account Balance × Risk Percentage
$___________ × _____ % = $___________
Step 4: Calculate Position Size
Position Size = Dollar Risk / Stop Loss Distance
$___________ / $___________ (or pips) = ______ units/shares/contracts
Step 5: Verify Against Limits
[ ] Daily maximum risk <5% of account? (Cumulative with open positions)
Current daily risk: __% → YES [ ] / NO [ ]
[ ] Weekly maximum risk <10% of account?
Current weekly risk: __% → YES [ ] / NO [ ]
[ ] Single position <10% of account notional?
Notional value: $__________ ÷ Account balance = __% → YES [ ] / NO [ ]
[ ] Sector/market concentration within limits?
(No sector >25%, no correlated pair both open) YES [ ] / NO [ ]
[ ] Margin utilization <50% of available?
Current margin used: __% → YES [ ] / NO [ ]
Step 6: Volatility Check
[ ] Current ATR vs. 20-period average ATR?
Current: _____ pips, Average: _____ pips, Ratio: ____x
[ ] Is volatility elevated (>1.5x average)?
YES [ ] Reduce position 50% [ ] / NO [ ] Proceed normal
[ ] Is volatility collapsed (<0.8x average)?
YES [ ] Scale position +25% [ ] / NO [ ] Proceed normal
Step 7: Stop-Loss Reasonability Check
[ ] Stop loss distance is consistent with historical entries?
Stop pips: _____ vs. typical: _____ YES [ ] / NO [ ]
[ ] Is this stop distance within your comfort zone for live execution?
(Tight stops = tighter discipline, wide stops = tolerance for noise)
YES [ ] / NO [ ] — If NO, reconsider setup.
[ ] Did I widen stop loss to fit my position size?
(RED FLAG if yes) YES [ ] / NO [ ]
Step 8: Final Authorization
[ ] All checks passed? YES [ ] / NO [ ]
[ ] If NO, which failed? _____________________________
[ ] Action: [ ] Reject trade [ ] Reduce size [ ] Proceed as-is
Position Size Approved: ______ units at $__________ per unit
Entry Execution Time: __________
Stop Loss Set: __________ (price) [ ] Confirmed with broker
Post-Trade Audit Checklist
After every trade closes (win or loss), use this checklist to document actual vs. planned sizing and identify patterns. This audit creates a paper trail you can analyze quarterly to spot systematic deviations.
POST-TRADE AUDIT CHECKLIST
Trade Summary
Entry Date: __________ Exit Date: __________
Instrument: __________ Strategy Tier: ___
Entry Price: $__________ Exit Price: $__________
Profit/Loss: $__________ Percentage: _____% [ ] Win [ ] Loss
Sizing Verification
Planned position size (from pre-trade checklist): _______ units
Actual position size executed: _______ units
Deviation: _______ units (___%) [ ] Oversized [ ] Undersized [ ] Correct
[ ] If deviation >5%, why? _________________________________
[ ] Volatility changed during setup? YES [ ] / NO [ ]
[ ] Did I average down? YES [ ] / NO [ ] Amount: _________
[ ] Did I pyramid up? YES [ ] / NO [ ] Amount: _________
[ ] Did I reverse position direction? YES [ ] / NO [ ]
Risk Management Audit
Planned dollar risk: $_________
Actual dollar risk: $_________
Did I hit my stop loss? YES [ ] / NO [ ] Profit taken early: YES [ ] / NO [ ]
Deviation Analysis
[ ] Position sized correctly per rules: YES [ ] / NO [ ]
[ ] Stopped out at planned level: YES [ ] / NO [ ]
[ ] If profit, did I exit early (profit-taking)? YES [ ] / NO [ ]
[ ] If loss, did I deviate from plan? YES [ ] / NO [ ]
Risk Assessment
Largest adverse excursion (LAE): $__________ / ____% of account
Did position hit 1.5× my stop distance? YES [ ] / NO [ ]
Would tighter stop have improved outcome? YES [ ] / NO [ ]
Would wider stop have improved outcome? YES [ ] / NO [ ]
Lessons Logged
[ ] This trade validates my tier classification: YES [ ] / NO [ ]
[ ] Position size was appropriate: YES [ ] / NO [ ]
[ ] Stop-loss distance was appropriate: YES [ ] / NO [ ]
Key observation: ___________________________________
Pattern to monitor: ___________________________________
Monthly Concentration Audit
Every month (e.g., first Friday), run this checklist to prevent unintended concentration in a single sector, instrument, or correlated group. Concentration sneaks up—you take 5 individual stock trades in tech, and suddenly you realize tech represents 35% of your portfolio.
MONTHLY CONCENTRATION AUDIT
Account Balance Today: $_____________
Step 1: Market/Sector Exposure
[ ] Equities sector breakdown:
Technology: $__________ (___% of account)
Healthcare: $__________ (___% of account)
Financials: $__________ (___% of account)
Energy: $__________ (___% of account)
Consumer: $__________ (___% of account)
Industrial: $__________ (___% of account)
Other: $__________ (___% of account)
[ ] Any sector >25%? YES [ ] / NO [ ] Sector: ______ at _____%
[ ] If yes, reduce sector exposure by: ____%
[ ] Forex exposure:
EUR trades: $__________ notional
GBP trades: $__________ notional
JPY trades: $__________ notional
Commodity pairs (AUD/NZD): $__________ notional
[ ] Any currency >20% of notional forex exposure? YES [ ] / NO [ ]
Step 2: Correlated Pair Check
[ ] Highly correlated pairs both open simultaneously?
Pairs: __________ and __________ (correlation >0.8)
YES [ ] / NO [ ]
[ ] If yes, close one position or reduce both by 50%
Step 3: Single-Instrument Concentration
[ ] Largest single stock position: $__________ (___% of account)
[ ] Largest single futures position notional: $__________ (___% of account)
[ ] Largest single option position: $__________ (___% of account)
[ ] Any position >10% of account? YES [ ] / NO [ ]
[ ] If yes, reduce to <10%
Step 4: Cash Position
[ ] Current cash balance: $__________
[ ] Cash as percentage of account: ____%
[ ] Target minimum cash: ____% [$___________]
[ ] Need to raise cash for margin? YES [ ] / NO [ ]
Corrective Action
[ ] Rebalance needed: YES [ ] / NO [ ]
[ ] Positions to close or reduce: ___________________
[ ] Margin utilization after rebalance: ____%
[ ] Executed corrections? YES [ ] / NO [ ] Date: __________
Quarterly System Review Checklist
Every quarter (every 90 days), conduct a comprehensive review of your sizing system using this checklist. This review validates that your assumptions still hold and identifies whether your win-rate estimates, loss magnitudes, and volatility profiles are evolving.
QUARTERLY POSITION SIZING SYSTEM REVIEW
Review Period: Q__ Year ____
Starting Balance: $__________ Ending Balance: $__________
Net Profit/Loss: $__________ (____%)
Step 1: Win-Rate Analysis
Total trades last quarter: ________
Winning trades: ________ Win rate: _____%
vs. Historical win rate: _____%
[ ] Win rate stable (within 2%)? YES [ ] / NO [ ]
[ ] If NO, what changed? _____________________________
Tier 1 Trades Win Rate: ____% (target: >55%)
[ ] Meets target? YES [ ] / NO [ ]
Tier 2 Trades Win Rate: ____% (target: 50-55%)
[ ] Meets target? YES [ ] / NO [ ]
Tier 3 Trades Win Rate: ____% (target: N/A - monitor)
Actual win rate: ____% Profitable? YES [ ] / NO [ ]
Step 2: Loss Analysis
Largest loss last quarter: $___________ (____%)
vs. Historical average largest loss: $___________
[ ] Largest loss within expected range? YES [ ] / NO [ ]
[ ] Was oversized position involved? YES [ ] / NO [ ]
Largest consecutive drawdown: _______ trades, $__________ (____%)
vs. Historical: ______ trades, $__________ (____%)
[ ] Drawdown within expected range? YES [ ] / NO [ ]
Step 3: Account Growth
Starting balance: $__________
Ending balance: $__________
Growth percentage: ____% (quarterly)
Annualized growth rate (approximate): _____%
[ ] Growth rate acceptable? YES [ ] / NO [ ]
Account Growth Milestones
[ ] Account +25% from start? Adjust risk upward? YES [ ] / NO [ ]
[ ] Account +50% from start? Increase base risk 0.5%? YES [ ] / NO [ ]
[ ] Account doubled? Increase base risk 1.0%? YES [ ] / NO [ ]
[ ] Account -15% from peak? Halt trading for review? YES [ ] / NO [ ]
Step 4: Position Sizing Rule Validation
Current sizing rule: ______% base risk per trade
[ ] Still appropriate for account size? YES [ ] / NO [ ]
Last 100 trades, average actual position size vs. planned:
Planned: $__________ risk
Actual: $__________ risk
Deviation: ____% [ ] Consistent [ ] Drift detected
[ ] Consistent rule following? YES [ ] / NO [ ]
[ ] If drift, which direction? [ ] Oversizing [ ] Undersizing
[ ] Root cause? ____________________________________
Step 5: Volatility Regime Analysis
Last quarter average ATR: _________
Last quarter ATR range: low _________ to high _________
Volatility trend: [ ] Rising [ ] Falling [ ] Stable
[ ] Current volatility rule still appropriate? YES [ ] / NO [ ]
Step 6: Rule Adjustments (if any)
[ ] No adjustments needed - proceed with current rules
[ ] Minor adjustments:
Change 1: From __________ to __________
Reason: __________________________________
Effective date: __________
[ ] Major overhaul needed - full system redesign
Reason: __________________________________
Target redesign completion: __________
Step 7: Risk Management Audit
[ ] Account floor (-15% from peak) = $__________
Current account = $__________ [ ] Above floor [ ] At/below floor
[ ] If at/below floor, halt trading: YES [ ] / NO [ ]
[ ] Maximum daily risk limit: ___% Adherence: ____% [ ] Compliant
[ ] Maximum weekly risk limit: ___% Adherence: ____% [ ] Compliant
[ ] Maximum position size: ____% of account Adherence: ____% [ ] Compliant
Step 8: Documented Changes to System
System updated quarterly: YES [ ] / NO [ ]
Changes made this quarter:
1. _________________________________________
2. _________________________________________
3. _________________________________________
Reviewed by: ______________ Date: __________
Next review date: __________
Trade Checklist Quick-Reference Card (Laminate This)
For traders who want a portable checklist to keep on desk or in trading workspace:
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POSITION SIZING PRE-TRADE CARD
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STEP 1: Account & Stop Distance
Account: $____________ Stop loss: ___________ pips/points
STEP 2: Risk Percentage & Dollar Amount
Risk%: [ ]3% (T1) [ ]2% (T2) [ ]1% (T3)
Dollar Risk = $__________ × ___% = $__________
STEP 3: Calculate Position Size
Position Size = Dollar Risk ÷ Stop Distance = _____ units
STEP 4: Verify Limits
Daily Risk <5%? [ ] YES Weekly Risk <10%? [ ] YES
Position <10% notional? [ ] YES Margin <50%? [ ] YES
STEP 5: Volatility Check
ATR Elevated (>1.5x)? [ ] YES→ Cut 50% [ ] NO→ Proceed
ATR Collapsed (<0.8x)? [ ] YES→ Add 25% [ ] NO→ Proceed
STEP 6: Approve & Execute
[ ] ALL CHECKS PASS - Size approved: _____ units @ $__________
[ ] FAILED CHECKS - Reject trade or reduce size
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Checklist Implementation Timeline
Week 1: Print and laminate pre-trade checklist. Practice on paper for 5 trades before live execution.
Week 2: Begin using pre-trade checklist for all trades. Don't change anything about your trading, just add the checklist step.
Week 3: After each trade closes, complete post-trade audit checklist.
Week 4: At month-end, run monthly concentration audit.
Month 2: Conduct first quarterly review (even if only 4 weeks have passed).
Ongoing: Every trade gets pre-trade checklist. Every trade closing gets post-trade checklist. Every month gets concentration audit. Every quarter gets system review.
Common Checklist Implementation Mistakes
Mistake 1: Skipping checklist on "obvious" trades. These are the worst trades to skip. Obvious setups are where overconfidence hides. Use the checklist on every trade, even if you take 5 minutes longer.
Mistake 2: Completing checklist but not enforcing results. A checklist that doesn't stop you from bad sizing is theater. If your pre-trade checklist says "REJECT—daily risk would exceed 5%," you must reject. The checklist only works if you enforce it.
Mistake 3: Completing checklist with wrong numbers. Using yesterday's account balance on today's trade introduces systematic error. Always update the account balance field on every checklist. Use a calculator, not mental math.
Mistake 4: Not reviewing checklists quarterly. Complete checklists are only useful if you audit them. Spend 2 hours at quarter-end reviewing 50 post-trade checklists. You'll identify patterns—"I size up after wins," "I violate daily limits on Fridays," "I reverse trades on Mondays"—that point to systematic weaknesses.
Mistake 5: Creating a checklist but never using it. The moment you "don't have time" for the checklist is the moment you'll make a sizing error. Treat the checklist as non-negotiable. If trading, checklist. No exceptions.
FAQ
How long should pre-trade checklist take?
90 seconds maximum. If it takes longer, simplify it. Most of the time is spent calculating position size (use a calculator or spreadsheet to speed this up). The verification steps take 30 seconds.
Can I automate the checklist?
Yes. Build a simple spreadsheet or trading software that takes your account balance, stop-loss distance, and risk percentage, then calculates position size and verifies limits automatically. Many brokers offer this. Use it.
What if my checklist reveals I can't take a trade I want to take?
That's the system working. The checklist is telling you the trade violates your limits. Your limits exist for a reason—to prevent ruin. Take the smaller version of the trade (50% position size) if you believe in it, or skip it. Don't violate the checklist.
Do I need to complete checklists for every single position size adjustment?
For major adjustments (adding to a trade, averaging down, taking partial profits), yes—complete a abbreviated checklist: verify new total position size stays within daily/weekly limits. For micro-adjustments (trailing stop, taking profits on schedule), no.
How do I track checklists long-term to identify patterns?
Digitize them. Photograph each completed checklist, or keep them in a shared spreadsheet. Tag them by strategy, outcome (win/loss), and any deviations from plan. Every quarter, search the spreadsheet for patterns: "How many times did I oversized after wins?" "Which strategies deviate from my checklist most?" Use these patterns to identify your weaknesses.
What if I make a mistake on the checklist—do I restart?
No. Cross out the error, write the correct number, and note "corrected" with time. Complete accuracy is important, but the discipline of stopping to calculate correctly matters more than perfection. The error itself is data—if you're frequently miscalculating position size, simplify your formula or automate it.
Do professional traders really use checklists?
Yes. Surgeons, pilots, military personnel, and professional traders all use pre-action checklists. The difference between an amateur and professional is the amateur thinks they're good enough to skip the checklist. The professional knows they're human and uses the checklist to prevent human error.
Can I use a mental checklist instead of a written one?
No. Writing forces activation of different memory systems and slows you down just enough to interrupt emotional overrides. A mental checklist you "always remember" is why you forget once every 15–20 trades. Written checklist, laminated, on your desk—non-negotiable.
Related concepts
- Comparing All Sizing Approaches Side by Side
- Building Your Own Position Sizing System
- Position Sizing Mistakes That Kill Accounts
- Understanding Fixed-Dollar Position Sizing
- What Ruin Means and How to Prevent It
- Your Investment Policy Statement
Summary
The difference between a trader who compounds wealth and a trader who blows up is not the quality of their setups—it's the consistency of their sizing discipline. Checklists transform discipline from an abstract intention into a repeatable process. A pre-trade checklist executed before every trade prevents 90% of position-sizing disasters before they happen. A post-trade audit checklist creates a record that reveals your patterns and biases. A monthly concentration audit prevents unintended sector or pair overexposure. A quarterly system review validates that your sizing assumptions still hold. The trader who invests 15 minutes daily in checklists over a decade compounds far more wealth than the trader who "just remembers" their rules and violates them once per 15 trades. Print the checklists, laminate them, and use them without exception. Your future account balance depends on the discipline you document today.