Breakout
How does the gap and go trading strategy work?
Gap and go trades a stock that opens well above or below its prior close in the direction of the gap, on the idea that a strong open often keeps going through the early session. The rules below cover confirming the gap holds, entry timing, stop placement, and why not every gap continues.
How it works
It trades continuation of an already-strong open
A gap happens when a stock opens meaningfully above or below its previous close, usually on news, earnings, or a broader market move overnight. Gap and go treats a large gap as a sign of unusual conviction and trades in the gap's direction on the premise that a strong open often extends through the early session rather than immediately fading. It's a momentum idea specific to the open — the strategy is built around the first part of the session, not the whole day.
- 01
Screen for a gap that clears a minimum size
A common threshold is a gap of at least 2% to 4% from the prior close, though the right number depends on the instrument's normal volatility. Trading every small gap treats routine overnight noise as a signal, which it isn't.
- 02
Wait for the gap to hold above (or below) the prior day's key level
After the open, check whether price holds above the prior day's high (for a gap up) or below the prior day's low (for a gap down) through the first few minutes, rather than assuming the gap holds just because it printed at the open.
- 03
Enter on continuation, not on the gap itself
A common entry is a break of the first few minutes' high (for a gap up) once the gap has shown it's holding, similar in spirit to an opening range breakout but anchored to the gap rather than a fixed time window.
- 04
Set the stop back inside the gap or below the confirmation level
The stop sits at a level that, if hit, means the gap has failed to hold — commonly the low of the first few minutes' range, or the prior day's close for a more conservative stop.
Position sizing
Gap size and early volatility both affect the right position size
A stock that gaps hard typically trades with wider bar ranges in the early session than it does normally, which widens whatever stop distance the setup calls for. Sizing the position off that day's actual stop distance, rather than a fixed share count used on every gap trade, keeps dollar risk consistent even though gap size and early volatility vary a lot from one name to the next.
Common mistakes
Where this setup usually goes wrong
- 01
Buying the gap itself instead of waiting for confirmation
Entering at the open purely because a stock gapped skips the step that separates gap and go from a coin flip — checking whether the gap actually holds through the first few minutes before committing.
- 02
Ignoring why the stock gapped
A gap on a clear, specific catalyst — earnings, guidance, a major news item — behaves differently from a gap with no obvious cause, which is more likely to be a low-liquidity anomaly. Treating every gap identically skips information available before the trade.
- 03
Holding into a gap fade instead of respecting the stop
A gap that fails to hold and starts filling back toward the prior close is the setup failing for that stock. Waiting it out on the assumption the original momentum will return contradicts the entry logic.
- 04
Trading illiquid names with a small float
Thinly traded stocks can gap sharply on very little volume, and the same illiquidity that produced the gap can make getting out at a reasonable price difficult once the trade goes wrong. Checking average volume before entering matters as much as the gap size itself.
Limitations
Not every gap continues, and it's built for the early session only
A meaningful share of gaps fade rather than extend — the initial move overnight can reflect an overreaction that corrects once regular trading volume returns, which is exactly why the confirmation step matters. The strategy is also specific to the opening part of the session: the edge it's built around, unusual overnight conviction meeting the regular session, fades as the day goes on, so gap and go isn't meant to be run as an all-day setup.
Backtest gap continuation rates before trading them live
How often a given gap size actually continued versus faded is a specific, checkable question, not a general assumption. Backtesting on Traders Journal runs a defined gap and go rule against historical price data so you can see that before risking capital on the next one.
Explore backtestingQuestions
What size gap is worth trading with gap and go?
A 2% to 4% gap from the prior close is a common minimum threshold, but the right number depends on the stock's typical volatility — a name that regularly moves 1% a day gapping 2% is more unusual than one that regularly moves 5% a day doing the same. Screen relative to the stock's own normal range, not a single number applied to everything.
How do I know if a gap will hold or fade?
There's no way to know in advance with certainty — that's the actual risk of the strategy. Checking whether price holds above the prior day's high (or below the prior day's low) through the first several minutes, rather than assuming it holds at the open, is the confirmation step built to reduce, not eliminate, that risk.
Does gap and go work on earnings gaps specifically?
Earnings gaps are one common source and often carry a clear catalyst, which some traders treat as a reason for more confidence. They also tend to be more volatile, with wider spreads and faster moves in the first few minutes, which changes both the position sizing and how tight a stop can realistically be placed.
How long should a gap and go trade be held?
The strategy is built around the early session, when the gap's momentum is most likely to still be in play. Most versions look to exit or at least tighten the stop well before the moves typical of the open fade into the rest of the day's regular trading.