Opening Range Breakout (ORB Strategy)
The ORB strategy defines reference levels from the first 15 minutes of the market open, then evaluates breakouts with volume confirmation and predefined risk rules. It is the flagship, rules-based morning framework on this site for liquid index ETFs and large-cap stocks.
How the ORB Strategy Works
Between 9:30 and 9:45 AM ET, institutional and retail order flow collides at the opening bell. The ORB strategy captures the high and low of this window to form the Opening Range High (ORH) and Opening Range Low (ORL). When price closes beyond either boundary on above-average volume, it signals that one side has won the opening auction — creating a directional bias for the morning session.
Execution Rules
Wait for the 9:45 AM candle to close. Mark ORH and ORL from the 9:30–9:45 window on a 15-minute chart.
Switch to the 5-minute chart. Enter long on a candle close above ORH, or short on a close below ORL.
Confirm relative volume (RVOL) is at least 1.5x the average of opening-range candles. No volume, no trade.
Set stop at range midpoint (or opposite boundary). Project a 2:1 profit target. Exit by 11:00 AM if target is not reached.
ORB Strategy Settings
| Parameter | Standard Setting | Notes |
|---|---|---|
| Opening Range | 15 minutes (9:30–9:45) | Extend to 30 min on low-vol days |
| Chart Timeframe | 5m entry / 15m range | Never enter before range forms |
| Volume Filter | RVOL > 1.5x | Use 2x on QQQ / earnings days |
| Long Trigger | 5m close > ORH | Wick-only breaks are invalid |
| Short Trigger | 5m close < ORL | Confirm SPY/QQQ alignment |
| Stop Loss | Range midpoint (50%) | Or opposite boundary for wider stop |
| Profit Target | Example: 2.0x risk (2R) | Test with fees, slippage, and your entry rules |
| Time Stop | 11:00 AM ET | Morning momentum fades after this |
Entry Variants
Breakout Entry
A breakout-entry ruleset acts on the first 5-minute candle that closes beyond the range. It produces earlier entries but can be more exposed to failed breaks.
Compare entry methods →Pullback Entry
A pullback-entry ruleset waits for price to retest the broken ORH or ORL before acting. It may provide fewer setups and can miss moves that never retest.
Pullback vs breakout guide →When to Skip the Trade
- ✕ Breakout candle volume below 1.5x average
- ✕ Major economic release within 5 minutes (CPI, FOMC, NFP)
- ✕ SPY and QQQ breaking in opposite directions
- ✕ Price re-enters the range after initial breakout (failed break)