The Pre-Trade Checklist

Airline pilots run a checklist before every takeoff. Surgeons run a checklist before every operation. The reason is identical: decisions made under time pressure are worse than decisions made before the pressure starts. Trading is no different. The pre-trade checklist - a written 5-item template you complete before every entry - is the single simplest discipline that separates professional traders from amateurs. It takes 90 seconds per trade, produces a journalable record, and kills more rule violations than any other practice. This lesson covers the exact template, why each item is non-negotiable, and how to use the act of writing the checklist as a stress-test for whether the trade should happen at all.

The 5-item checklist

Before every single trade, write these down. Not in your head - in a notebook, a trading journal app, or a sticky note. Writing matters.

1. The setup

What am I seeing? In one sentence.

"Pullback to the 50 EMAMoving averageThe average price over the last N bars. Used as dynamic support/resistance and trend filter. EMA weights recent data heavier.Read in glossary → in an uptrend on NVDA daily." "ES breaking out of 90-minute range with expanding volume." "EUR/USD tagging prior-session VAL after trending up all day."

If you can't name the setup in one sentence, you don't have a setup. You have a vibe.

2. The invalidation

Where am I wrong? Specific price.

"Stop at $138 - below the most recent swing low. If price closes below $138, the uptrend structure is broken."

You must be able to articulate why that price matters - what structural thing it represents. "I don't know, it just feels like a good stop" is not an invalidation. It's a guess.

3. The size

How many shares/contracts/lots? Derived from stop distance + risk $.

"Entry $142, stop $138, $4 stop distance. 1% of $10K account = $100 risk. Size = $100 / $4 = 25 shares."

Writing it out makes oversizing obvious. The moment you realize "wait, this would putPutAn options contract giving the buyer the right but not the obligation to sell 100 shares of the underlying at the strike price on or before expiration.Read in glossary → me at 3% risk" is worth the 60 seconds.

4. The target (and the R-multiple it implies)

Where am I taking profit? Specific price. What's the R-multipleR-multipleThe dollar amount risked on a trade. Every outcome is measured in R: a 2R winner made twice the risked amount.Read in glossary →?

"Target $150 - prior swing high. Target distance = $8, stop distance = $4. R/RReward-to-riskDistance to target ÷ distance to stop. Minimum workable setups are typically 2:1 or better.Read in glossary → = 2:1."

If R/R is below 1.5:1, the trade needs a compelling reason. If you can't beat 1.5:1, pass unless your win rate is very high.

5. The psychological check

How do I feel right now? One line.

"Neutral, focused, saw the setup at 9:45 before market action."

OR

"A little desperate - down 2% on the day, looking for something to make back."

That second answer tells you to not take the trade. The checklist's final function is catching the emotional state that's about to cause a mistake. If the honest answer is anything but neutral/calm/focused, sit out.

The checklist in action

Here's what it looks like filled out. Spend the 90 seconds to actually do this:

──────────────────────────
DATE: 2026-04-20  09:47 ET
INSTRUMENT: NVDA

1. SETUP: Pullback to 50-day EMA after 3-day run up.
2. INVALIDATION: $138 (below yesterday's low + below 50 EMA).
3. SIZE: Entry $142, stop $138 = $4. 1% = $100. 25 shares.
4. TARGET: $150 (previous high). R/R = 2:1.
5. PSYCH: Neutral. 1st trade of the day. Slept well. Ready.

--> GO
──────────────────────────

Or, equally useful:

──────────────────────────
DATE: 2026-04-20  14:12 ET
INSTRUMENT: SPY

1. SETUP: Breakout, I guess? Price just moved up.
2. INVALIDATION: uh, $535 maybe?
3. SIZE: 100 shares I want to buy.
4. TARGET: up to $545?
5. PSYCH: Missed the morning. Want to get something today.

--> NO GO
──────────────────────────

In the second example, the trader has:

• No clear setup ("breakoutBreakoutPrice closing decisively through a resistance level on expanding volume. Often followed by retest and continuation.Read in glossary →, I guess?")
• No structural invalidation ("maybe?")
• Reversed the sizing (picked 100 shares, didn't derive from risk)
• Vague target
• FOMOFOMOChasing a move after watching it rip without you. Always late, always bad R/R, always priced into the extreme.Read in glossary →-driven psych state

Every one of those is a red flagFlagA brief consolidation (the flag) after a sharp move (the flagpole). Classic continuation pattern.Read in glossary →. Writing them down makes it impossible to ignore. The trade doesn't happen. That's the checklist's most valuable work.

Why each item is necessary

Setup name forces pattern clarity

Traders often "see something" without being able to name it. Naming the setup is the first filter - if you can't describe it in words, you probably aren't looking at a real pattern, just pareidolia (seeing faces in clouds, but with charts).

Invalidation writes the exit before the emotion

The #1 mistake in trading is moving stops mid-trade. Writing the invalidation before entry, with its structural reasoning, commits you. When the trade is at -0.8R and the brain is suggesting "give it room," the written stop defeats the impulse.

Size derived from stop prevents oversizing

Size should always be the output of (risk $ ÷ stop distance). When you pick size first and stop second, you're guaranteed to either stop too tight (noise takes you out) or risk too much (account bleed). Writing size as a calculation, not a number, enforces the right direction.

Target + R/R kills negative-expectancy trades

Most bad trades are identifiable at setup: the R/R just isn't there. 1.2:1 setups are bleed trades over 100 reps. Writing the target forces you to compute R/R before entry. If it's bad, you pass. If you take trades where R/R is barely 1:1 because "this one will run," you don't have a strategy - you have hope.

Psych check catches emotional trades

The single most predictive feature of a bad trade is the emotional state that preceded it. Professionals have spent years learning to notice their state. A written line accelerates this: "slightly frustrated" in writing is a harder signal to ignore than the same thought unspoken.

The checklist as a rule enforcement tool

Here's the key insight: the checklist is not just about making this trade better. It's about making it harder to break rules without noticing.

If you're about to oversize, the size line will show it. If you're about to take a FOMO trade, the psych line will show it. If your stop is random, the invalidation line will show it. You cannot fill out the checklist honestly and also break the rules at the same time - the incompatibility becomes textual, visible, and harder to lie to yourself about.

What to do with the filled-out checklists

Each filled checklist is a data point. Save them. After 30 trades, you'll have 30 filled templates to analyze.

Look for:

• Setups you took successfully vs ones you took and lost: which setup names correlate with which outcomes?
• Trades where psych was flagged "not neutral": did they have a different expectancyExpectancyExpected R-multiple per trade: (WinRate × AvgWinR) − (LossRate × AvgLossR). Positive = edge. Negative = bleed.Read in glossary → than the clean ones?
• Trades where R/R was below 2:1: what was the actual outcome distribution?
• Trades where size deviated from the formula: they exist. Now you have the data.

This is how the checklist becomes a compounding discipline. You're not just trading better in the moment - you're building a corpus of tagged trades that becomes its own strategy-improvement tool.

The post-trade addendum

After the trade closes (win, loss, or break-even), add three lines to the same record:

EXIT: $149.50  |  +$187.50  |  +1.88R
EXECUTION: Followed stop. Held for target. Target partial fill, took the rest at $149.50.
LESSON: Clean trade. No deviations. Continue pattern.

Or for a loss:

EXIT: $137.80  |  -$105  |  -1.05R
EXECUTION: Stop hit. Honored, did not widen. Slight slippage.
LESSON: Stop placement was correct - setup failed, not the plan.

Three lines. Takes 30 seconds. This is how you convert every trade - win or loss - into an improvement signal.

The checklist as anti-boredom defense

The checklist is a strong anti-overtradingOvertradingTaking trades beyond your strategy's natural setup count. Death by thousand cuts: fees + slippage + mental exhaustion.Read in glossary → tool by design. When no valid setups are present, there's nothing to fill out. Your checklist count per day is naturally capped at the number of real setups.

Traders who overtrade rarely keep checklists. Traders who keep checklists rarely overtrade. This is not coincidence - the friction of the checklist itself filters out low-quality trades.

Common objections and responses

"I trade too fast to write a checklist - scalpingScalpingUltra-short-term trading style: trades last seconds to minutes, dozens to hundreds per day.Read in glossary → takes seconds." Then shorten the checklist to 3 items (setup, stop, size) and use shorthand. Even "S1 ORB, STOP ORL, 1 MNQ" is better than nothing. The act of touching those three details converts an impulse into a deliberate trade.

"I've been trading for years - I don't need one." Maybe. But every prop desk I've seen enforces pre-trade documentation anyway. The justification isn't "new traders need it more." It's that written pre-trade logs make reviewing, debugging, and scaling possible. Even experienced traders benefit from the review corpus.

"It feels like homework." Correct. That's the point. If trading feels like a job with rules and paperwork, you're closer to treating it as a job - and doing jobs well is mechanical. The moment trading feels like a game or a rush, your risk of mistakes is at its peak.

"What if I'm in too fast for a new move?" If you're in too fast for 60 seconds of writing, you're taking a trade you shouldn't be taking. Fast-moving markets reward patience, not panic entries. The setup will return. The train is always coming.

A minimalist version

If a full checklist feels like too much friction, use the 3-word minimum:

Setup. Stop. Size.

Before every trade, say it aloud: "Pullback to VWAPVWAPThe average price for the session weighted by volume. Institutional reference level for intraday mean reversion.Read in glossary →. Stop 5420. Two contracts."

If you can't complete that sentence in under 20 seconds, the trade isn't ready.

Common questions

Should I use a paper notebook or an app? Either works. Paper is tactile and feels more "committed." Apps give you search, tags, and analytics. Many pros use a hybrid - paper during the session, digital journal at end-of-day.

What about during a fast breakout? The checklist is still 20 seconds minimum (3-word version). If you can't give the trade 20 seconds, the "breakout" is probably a chase, not a setup.

How does this interact with multiple concurrent trades? One checklist per trade. Complete each one individually. If you're running 5 simultaneous positions, you wrote 5 checklists. That's how professionals manage multi-trade sessions - each trade is documented and executable independently.

Does the checklist go away as I get better? No. Top traders are often the most disciplined about documentation. The checklist isn't training wheels - it's the quality control that makes durable edges possible.

Key takeaways

• Pre-trade checklist = 5 items: Setup, Invalidation, Size, Target + R/R, Psych check.
• Takes 60-90 seconds. Kills most C-grade trades before they happen.
• Writing it down is the mechanism. Thinking it isn't enough - slippery thoughts let you lie to yourself.
• Post-trade addendum (exit price, execution, one-line lesson) is another 30 seconds.
• Minimalist version for scalpers: Setup. Stop. Size. spoken aloud.
• The filled checklists become a corpus you can analyze. Categorize setups, match to outcomes, find patterns.
• Checklist = anti-overtrading by design. No setup → nothing to write → no trade.
• Professional traders don't outgrow checklists. They scale with them.

Up next: The Journal System - what to track beyond the checklist, how to review the data, and how the journal becomes the strategy improvement loop that turns a flat trader into a compounding one.