Gap Trading Patterns

Price gaps form when a stock opens significantly above or below its prior close, leaving a visible void on the chart where no trading occurred. These gaps reveal sudden shifts in supply and demand — driven by overnight news, earnings, or institutional order flow — and each of the four gap types signals a distinct market condition. Gap trading is most reliable on daily charts of liquid US equities and ETFs, though day traders regularly exploit gaps on 1-minute and 5-minute timeframes using gap-and-go strategies.

How to Identify Gap Trading Patterns

1. Visible price void — The gap must be a clear, unambiguous space between the prior session’s close and the current open. On a candlestick chart, no wicks should cross the gap zone. If wicks overlap, it is not a true gap.

2. Classify by context — Common gaps appear within a trading range or consolidation and carry little directional significance. Breakaway gaps occur at the edge of a consolidation or through a key support/resistance level. Runaway (measuring) gaps appear mid-trend after a move is already underway. Exhaustion gaps occur late in an extended trend, often after three or more legs.

3. Measure gap size — Calculate the gap as a percentage of the prior close. For large-cap stocks, gaps of 1-2% or more are tradeable. Gaps under 0.5% on liquid names are typically noise and not worth acting on.

4. Confirm with volume — Breakaway gaps should show volume at least 1.5-2x the 20-day average, confirming institutional participation. Runaway gaps maintain above-average volume. Common gaps typically occur on normal or below-average volume. Exhaustion gaps often show a volume spike that quickly fades.

Entry Rules

1. Common gap fade — When a gap occurs inside a range with no catalyst and average volume, enter in the direction of the gap fill once price stalls at the open within the first 15 minutes. Wait for a doji or hammer candle to confirm the stall before entering.

2. Breakaway gap continuation — After a gap through support or resistance on volume above 1.5x the 20-bar average, wait for the first pullback that holds the gap edge. Enter when the pullback reversal candle closes above the gap low (longs) or below the gap high (shorts). This often forms a bull flag or bear flag on the intraday chart.

3. Runaway gap continuation — In an established trend, enter in the trend direction when price holds above the gap low (uptrend) or below the gap high (downtrend) for at least 15 minutes after the open. Volume should remain above average.

4. Exhaustion gap reversal — After an extended multi-leg move, enter the reversal when price fails to advance beyond the gap within 30-60 minutes and prints a reversal candlestick such as an engulfing or shooting star pattern.

Exit Rules & Targets

1. Common gap fill target — The primary target is the prior session’s close (full gap fill). Take partial profits at the 50% fill level to lock in gains in case the fill stalls.

2. Breakaway gap measured move — Measure the width of the prior consolidation range and project it from the gap edge. A stock that gaps out of a $10 range has a measured target $10 beyond the gap edge.

3. Runaway gap measured move — Measure the distance from the trend origin to the gap and project an equal distance from the gap forward. This gives runaway gaps their alternate name: measuring gaps.

4. Exhaustion gap reversal target — Target the opposite edge of the gap first, then the prior swing high or low. Trail the stop using the 9 EMA on the intraday chart once the first target is reached.

Target Calculation: For breakaway gaps, identify the prior consolidation range (high minus low), then add that distance to the breakout gap edge. For runaway gaps, measure from the trend start to the gap and project that same distance forward. For common gaps, the target is simply the prior close.

Stop Loss Placement

Place stops beyond the opposite side of the gap to invalidate the trade thesis. For a breakaway gap long entry, set the stop below the low of the gap candle or the prior session’s close — whichever is lower. For common gap fades, place the stop 0.25% beyond the gap extreme to allow for intraday noise. The risk-to-reward ratio should be at least 1:2 for breakaway and runaway setups. Common gap fades often offer 1:1.5 at best, so position size should be adjusted accordingly.

Practical Example

On the daily chart of AAPL, the stock closes at $192.50 after consolidating in a $185-$193 range for three weeks. The next morning, AAPL gaps up to open at $197.00 on 2.3x average volume following an analyst upgrade — a breakaway gap of 2.3%. The first pullback dips to $196.20 over 20 minutes but holds above the gap edge at $193.00. Entry is taken at $196.50 when the pullback reversal candle closes.

Stop loss goes below the gap candle low at $195.00, risking $1.50 per share. The measured move target is $193 minus $185 (the $8 consolidation range) projected from the gap edge: $193 + $8 = $201. On a $25,000 account risking 1%, a trader allocates $250 of risk, sizing the position at 166 shares ($250 / $1.50). AAPL reaches $201.30 four sessions later. At 166 shares with a $4.80 gain per share, the trade yields $796.80 — a 3.2R winner.

Best Timeframes for Gap Trading Patterns

Daily charts produce the most significant gaps because they capture the full overnight information gap between sessions. These gaps tend to have the highest signal-to-noise ratio, with breakaway gaps on daily charts holding 60-70% of the time when backed by above-average volume. For day traders, the 1-minute and 5-minute charts are essential for timing entries within the first 30 minutes of the session, particularly for gap-and-go setups. Weekly charts occasionally show gaps that represent major sentiment shifts, but they are too infrequent for active pattern trading.

Common Mistakes

1. Treating all gaps the same — The “gaps always fill” myth causes traders to fade breakaway gaps that never return. Classify the gap type before choosing a strategy, and recognize that breakaway and runaway gaps are designed to not fill.

2. Fading breakaway gaps — When a stock gaps through resistance on heavy volume with a clear catalyst, fading it is fighting the strongest form of directional momentum. Only fade gaps that occur within ranges on average volume.

3. Chasing without confirmation — Jumping into a gap-and-go without waiting for the first candle to confirm direction leads to buying the high of the move. Wait for price to hold above the open for at least one 5-minute candle close.

4. Ignoring the catalyst — A gap driven by earnings, FDA approval, or macro news behaves differently than a technical gap. Understand the catalyst to assess whether the gap is likely a breakaway or exhaustion event.

5. Trading gaps on illiquid stocks — Stocks with wide bid-ask spreads and low volume gap routinely due to poor liquidity, not meaningful supply-demand shifts. Filter for stocks with at least 500,000 average daily volume.

How to Journal Gap Trading Pattern Trades

Journal Field	What to Record	Why It Matters
Gap Type	Common, breakaway, runaway, or exhaustion	Lets you track which gap types you trade most profitably
Gap Size (%)	Percentage gap from prior close	Reveals your optimal gap size range over time
Catalyst	Earnings, news, technical, or no catalyst	Shows whether catalyst-driven gaps outperform in your trading
Pre-Market Volume	Relative to 20-day average	Validates gap significance — correlate with win rate
Entry Timing	Minutes after open when entered	Identifies if you perform better with early or patient entries
Gap Fill Status	Filled, partial fill, or held	Builds personal fill-rate statistics by gap type
Setup Quality (1-5)	Overall assessment of the pattern	Filters for your highest-quality setups in review

After logging 50 or more gap trades, filter by gap type and review which variations produce the best risk-adjusted returns for your style. Day traders may discover that breakaway gaps on stocks gapping 3-5% yield their best results, while swing traders might find that unfilled runaway gaps offer superior trend continuation entries. JournalPlus’s tagging and filtering tools let you isolate these subsets instantly, turning raw trade data into a personal gap-trading playbook.