What is an opening range breakout?
The opening range is the high and low a stock or ETF sets in its first minutes of regular trading. Overnight news, waiting orders and fresh opinions all get priced in during that window, so its edges become levels the rest of the day reacts to. An opening range breakout is a candle that closes outside that box, and the ORB strategy trades in that direction.
The idea is often traced to Toby Crabel, whose 1990 book Day Trading with Short Term Price Patterns and Opening Range Breakout studied breakouts from the open alongside other short-term price patterns. This guide uses the simple time-based box many stock day traders draw today, which works the same way on SPY, QQQ or a liquid single stock. For breakouts from any range, see the breakout trading strategy guide.
- Opening range
- The high and low of the first 5, 15 or 30 minutes after the 9:30 a.m. ET open, on regular-session data.
- Range high and range low
- The edges of the box: a close above the high triggers a long, a close below the low a short.
- Range midpoint
- Halfway between the high and the low. A common tighter stop, since a breakout that falls back to the middle of its range has failed.
- Two-sided failure
- Price breaks one side of the range, falls back inside, then breaks the other side, so a trader who chases both breaks loses twice.
When does the opening range form? 5, 15 or 30 minutes
The US regular session opens at 9:30 a.m. ET, and the range starts with its first candle: in the timeline drawing, the first sliver of the regular session. In Riyadh, a 15-minute range runs from 4:30 to 4:45 p.m. until US clocks change on November 1, 2026, then from 5:30 to 5:45 p.m. Mark it with extended hours off, since a box that includes pre-market trading is a different box. Holidays and a live clock are on the US stock market hours page.
Pick one length, write it in your plan and keep it; switching after the fact is how a losing trade becomes "a different setup". Each length has a cost:
- 5 minutes (9:30 to 9:35 a.m. ET): the earliest signals and the tightest stops, but the most noise. The first candle often carries the whole overnight reaction, and many 5-minute breaks reverse.
- 15 minutes (9:30 to 9:45 a.m. ET): the common middle ground, three 5-minute candles, and the range used in the drawing at the top of this page and in the example below.
- 30 minutes (9:30 to 10:00 a.m. ET): a wider box with fewer, later signals and wider stops, but more of the opening noise is already inside it. Some traders use the whole first hour.
ORB entry rules: wait for a candle to close beyond the range
Confirmation is a close, not a touch. With a 15-minute range, watch the 5-minute candles after 9:45 a.m. ET. A candle that spikes above the range high and closes back inside is a rejection, not a breakout. Avoid resting buy-stop orders just above the high: they fill on the wick, before you know how the candle will close.
Hypothetical, with made-up prices: the 9:30 to 9:45 range on a liquid stock runs from $99.80 to $100.60, so it is $0.80 wide with a midpoint at $100.20. At 10:05 a.m. ET a 5-minute candle closes at $100.72, $0.12 above the high, on about twice the normal volume for that time of day. You buy at the next candle's open, $100.75.
Two refinements. First, do not chase: if a candle closes far beyond the box (set a limit in your plan, such as half the range's width), wait for a retest of the old high instead. Second, check location. Mark the prior day's high and low and the pre-market high and low first, as the support and resistance strategy guide shows, because a breakout that runs straight into one of them has no room. The drawing shows the shape to look for: a contained box, then a decisive close outside it on a volume spike.
VWAP and volume: two filters that cut weak breakouts
VWAP, the session's volume-weighted average price, resets at the open and shows where the day's average buyer stands. Take long breakouts only with price above a rising or flat VWAP, and short breakouts only below a falling or flat one. A close above the range high while price sits under a falling VWAP is fighting the day's flow, and many traders pass on it. The VWAP trading strategy guide covers the line in detail.
Volume is the second check. Everything trades heavily right after the open, so compare the breakout candle with normal volume for that time of day. TradingView's built-in Relative Volume at Time indicator does exactly that: a reading of 2 means twice the usual volume for that moment of the session. A breakout on below-normal relative volume is a warning, not a trigger.
VWAP also offers a second way in. If the first break runs without you, price sometimes pulls back to the old range high or to VWAP; a candle that holds there and closes back up, as in the drawing, is an entry with a tighter stop. The cost: the strongest breakouts often never come back.
Where to put the stop and the target on an ORB trade
The stop goes where the breakout is proven wrong: back inside the range. A stop below the range low, as in the drawing at the top of the page, gives the most room but is the widest. A stop below the midpoint is tighter, on the logic that a breakout falling back to the middle of its range has failed. Add a small buffer either way.
In the example, a stop just under the midpoint, at $100.15, risks $0.60 a share from the $100.75 entry. A stop under the range low, at $99.75, risks $1.00. Now look up: yesterday's high is $101.90. A target just before it, at $101.85, is $1.10 away: about 1:1.8 with the midpoint stop, but only 1:1.1 with the range-low stop. Same breakout, two different trades; with the wide stop, most plans would skip it.
Many ORB traders aim for 1R to 2R, or the next level if it comes first, and add a time stop: if the target has not been reached by about 11:30 a.m. ET, when the lunch lull often begins, they close the trade or tighten the stop. The risk reward ratio guide shows the breakeven math behind those numbers.
How to size an opening range breakout trade
The range width sets the stop, and the stop sets the size: shares = dollar risk ÷ distance to the stop. A wide range does not mean a bigger loss. It means fewer shares.
Hypothetical: a $25,000 account risking 0.5% per trade accepts a $125 loss. With the $0.60 midpoint stop, $125 ÷ $0.60 = 208 shares, a position of about $20,956. At the target, 208 × $1.10 = $228.80, about +1.8R. At the stop, 208 × $0.60 = $124.80, or −1R, plus costs. With the $1.00 range-low stop, the same $125 buys 125 shares.
Check your buying power before the order, never widen the stop to fit a share count, and remember that a stop order becomes a market order once triggered, so a fast open can fill you beyond it. The position size calculator does this math for longs and shorts.
False breakouts and the two-sided failure
Opening range breakouts fail often, so plan for it. Back to the example: after the entry at $100.75, price stalls, and at 10:20 a.m. ET a 5-minute candle closes at $100.40, back inside the range. The break has failed. Exiting on that close costs $0.35 a share, about −0.6R, instead of the full stop.
Then comes the second half of the trap. At 10:45 a candle closes at $99.70, below the range low. The breakout buyers are trapped, and their stops under the range can push price lower, so some traders short here, with a stop back inside the range and VWAP turning down. If price then closes back inside the range again, it has failed on both sides: the two-sided failure, a range-bound morning that charges anyone who chased both breaks twice.
- Exit on a 5-minute close back inside the range or at the midpoint stop, whichever comes first.
- Take at most one attempt per side of the range per day.
- Once both sides have failed, stop trading that range for the day.
- Log failed ORBs in your journal. What they share, such as low relative volume or a level just overhead, teaches more than the winners.
News days and gaps: when to skip the ORB
The opening range is only as useful as the open is orderly. The Consumer Price Index (CPI) and the monthly jobs report come out at 8:30 a.m. ET, an hour before the open, and a surprise can gap the whole market and make the first minutes violent. The Fed's rate decision lands at 2:00 p.m. ET, long after the range, but it can wipe out a morning trade you are still holding.
Single stocks add earnings. A company that reported last night may open far beyond yesterday's high or low, with a range so wide that a sensible stop allows only a tiny position. On those mornings many traders skip the ORB on that stock, or use a 30-minute range with a smaller size. The gap trading strategy guide covers trading the gap itself.
- Check the economic and earnings calendars before 9:30 a.m. ET; TradingView has a calendar built in.
- Skip the range if it is several times wider than usual for that stock; compare it with a few recent mornings.
- Do not hold an ORB trade into a scheduled release.
Where UpTickFlow fits, and a pre-trade ORB checklist
UpTickFlow, our invite-only TradingView indicator, is not an ORB scanner. It stays quiet in the first minutes after the open, which fits with letting the range form; later it waits for a closed candle at a level, scores the setup from 0 to 100 and draws the entry, stop and target before the trade. It also stays quiet in chop and when there is no room to the target. Treat it as a second check on your own plan. See how it works.
Either way, answer these questions in order before every opening range breakout, while you are still flat. If any answer is no, there is no trade.
- Is the range the length in your plan, measured on regular-session data?
- Is the open free of a scheduled release or an earnings gap?
- Has a candle closed beyond the range, not just wicked through it, and not too far beyond it?
- Do VWAP and the higher timeframe agree, and is relative volume above normal for the time of day? See multi-timeframe analysis for the higher-timeframe check.
- Is the stop back inside the range, is there room to the target, and is the size set from the stop?