The short answer: The ORB trading strategy defines a price range during the first 5, 15, or 30 minutes of the session, then trades the breakout when price clears one side with conviction. The setup isn’t the range itself — it’s what the range reveals about where the real buyers and sellers are positioned. Get the candidate selection wrong and you’re trading a range nobody cares about.
What Makes a Good ORB Candidate
Not every stock is worth running this strategy on. The opening range only matters when the stock has a reason to move — a catalyst, unusual pre-market volume, or a significant overnight gap. Without that, the range is just noise dressed up as structure.
The candidate profile that works:
A meaningful pre-market move. Stocks gapping 5–15% pre-market have already attracted attention. There are trapped longs, short sellers initiating positions, and momentum players all watching the same level. When the regular session opens, those competing interests create a defined range — and the resolution of that tension is the trade.
Volume confirmation. A gap with no volume behind it is a gap on thin air. Pre-market volume above 100,000 shares (for a name in the $5–$50 range) signals real participation, not a handful of retail orders moving a thin book.
Price range. Too cheap and the spread eats your edge. Too expensive and position sizing gets awkward. The $2–$50 range tends to produce the cleanest ORB setups — enough liquidity to get in and out, enough volatility to make the move worth trading.
The Opening Range Is Not the Trade
This is where most traders lose the thread. They mark the high and low of the first 15 minutes, set an alert at both levels, and wait. That’s not a strategy — it’s a trigger with no context.
The range itself tells you where both sides agreed to pause. The breakout tells you which side won. But the quality of the breakout — whether it’s a real trend move or a false break that immediately reverses — comes from three things that happen before the open, not after it.
Where did pre-market volume concentrate? If the bulk of pre-market volume traded in a tight band well above yesterday’s close, the market is telling you where it thinks value is. A breakout above the opening range high, if it’s also clearing that pre-market volume cluster, is a much stronger read than a breakout into empty space.
Is there a news catalyst? Stocks gapping on earnings, FDA announcements, or unexpected news have a reason to trend. Stocks gapping for no obvious reason often fill the gap by lunch. The ORB setup works differently in both environments.
What does the broader market look like? A strong ORB breakout in a down tape tends to fail faster than the same setup in a market that’s grinding higher. Context matters more than pattern.
Running the Pre-Market Scan in Scanz
The Data Scanner is where the candidate list comes together. Run this before the open — ideally between 8:00 and 9:15 AM — to narrow the universe to names worth watching.
A starting point:
Percent Change | PM
greater than or equal to
5
Volume | PM
greater than or equal to
100000
Last Price
greater than or equal to
2
Last Price
less than or equal to
50
That gets you stocks moving with pre-market participation in a tradeable price range. From there, tighten or loosen based on market conditions — on high-volume days you might raise the gap threshold to 10%; on quiet days you might drop it to 3%.
For more volatile candidates with squeeze potential, add:
Float
less than or equal to
20000000
Low-float stocks (under 20M shares) have limited supply to absorb buying. When those names gap with volume, the opening range tends to be tighter and the breakout sharper — both good for ORB setups.
Sort results by Percent Change PM descending and work down the list. You’re looking for names with clean pre-market charts, real catalyst context, and volume that’s been building — not a single large print in a thin book.
Marking the Range on a Scanz Chart
Click any candidate and QuickView opens with the chart. For ORB work, you want more screen real estate — right-click the ticker and choose Open in New Tab to get the full Montage view.
Set the chart to a 1-minute or 5-minute candle interval. At 9:30 AM, let the first candles form. Don’t guess the range before the open — pre-market price action and regular-hours price action can look completely different once real volume enters.
Let the first 5, 15, or 30 minutes close (depending on your preferred ORB window), then mark two levels:
- ORB High — the highest print during your opening window
- ORB Low — the lowest print during your opening window
These are now your decision lines. A confirmed close above the high with volume is the long trigger. A confirmed close below the low is the short trigger.
Pair the chart with the Level 2 panel in Scanz. Before a real breakout, you’ll often see the offer side of the book thinning — fewer market makers refreshing size at the high as buyers absorb supply. That’s a tell that price is about to clear. A wall of size that doesn’t move as price approaches is the opposite signal — the breakout is more likely to fail.
Entry Logic, Stop Placement, and Targets
The entry is the candle that closes outside the range with conviction. Not a wick. Not a few cents over the high. A full candle close, with volume above the average of the opening range candles.
Stop placement: Just inside the range. If you’re long above the ORB high, your stop is a close back below the ORB high. The thesis is invalidated the moment price fails to hold the breakout level — not after a $2 move against you.
Target logic: ORB targets are typically derived from the range itself. Measure the height of the opening range and project that distance from the breakout point. A stock with a 50-cent opening range that breaks out gets a minimum target 50 cents above the breakout level. Extend from there based on where the next significant level is — prior day’s high, a pre-market cluster, a round number.
When the breakout fails: False breakouts happen most often when the gap isn’t supported by a catalyst, when broader market conditions are weak, or when volume spikes on the breakout candle but immediately fades. If you enter a breakout and volume dries up within one or two candles, that’s an early exit signal. The best ORB trades tend to look obvious in hindsight — steady volume, price holding above the breakout level, no immediate reversal. Grindy, hard-to-hold entries are often false.
Frequently Asked Questions
What does ORB stand for in trading? ORB stands for Opening Range Breakout. It’s a day trading strategy that defines a price range during the first minutes of the regular session — typically 5, 15, or 30 minutes — and then enters a trade when price breaks out of that range with volume confirmation.
What is the best time window for the opening range? It depends on the stock and the market environment. The 15-minute ORB is most commonly used because it gives enough time for initial volatility to settle into a defined range without waiting so long that the move is already over. The 5-minute window captures more momentum but produces more false breakouts on choppy days.
How do you find ORB candidates? Look for stocks with a meaningful pre-market gap (5%+), confirmed pre-market volume (100K+ shares), and a catalyst behind the move. A scanner running those filters before the open narrows a 5,000-stock universe to a list of five or ten names actually worth watching at the open.
What is the difference between a breakout and a false breakout? A real breakout holds above the range high on a closing basis, with volume at or above the pace set during the opening range. A false breakout prints briefly above the high, then reverses back inside the range — often on a volume spike that immediately fades. The tell is almost always in the tape: real breakouts show sustained buying at the offer; false breakouts show one burst of volume followed by offers refreshing at the high.
Can you use ORB on any stock? In theory, yes. In practice, ORB works best on stocks with a reason to move: earnings, news, unusual pre-market volume. Running it on a random stock with no catalyst produces a lot of noise. The setup depends on competing interests converging at specific price levels — without a catalyst driving those competing positions, there’s nothing to resolve.
Is the ORB strategy suitable for experienced traders only? The setup is simple; the execution is not. Marking a range takes two minutes. Deciding whether the breakout is real — reading the tape, tracking volume relative to the opening range, not chasing false breaks — requires pattern recognition built over time. Traders who’ve seen enough false breakouts understand them differently than traders who’ve only read about them.
Does ORB work in all market conditions? ORB trades work best in trending market conditions. In choppy or range-bound markets, breakouts tend to fail more often because there’s no directional conviction driving price through key levels. On slow, low-volume days, it’s common to see multiple false breakouts above and below the opening range before price settles into a holding pattern.
Scanz’s pre-market scanner surfaces ORB candidates in minutes — gap screeners, volume filters, and float filters narrow the list before the open. The Montage chart and Level 2 handle confirmation. See plans and pricing. No commitment required.