The short answer: Active traders don’t trade earnings announcements — they trade the reaction to earnings, using real-time scanners and filtered news to find the stocks actually moving, not the ones expected to move.
Earnings season gets a lot of attention for the wrong reasons. Most retail coverage focuses on predicting whether a company will beat or miss estimates. Active day traders approach it completely differently. They’re not predicting anything. They’re watching for which stocks react, how fast, on what volume — and whether there’s a tradeable move in the price action that follows.
The Difference Between Trading Earnings and Trading the Reaction
When someone says they “trade earnings,” there are two very different strategies underneath that phrase.
The first is holding a position into the earnings announcement — either long or short — betting on which direction the stock moves. This is a binary bet. You might be right about the direction and still lose if the implied volatility collapses. Most experienced active traders avoid this.
The second is trading the reaction after the announcement. The stock has already moved — significantly. Now the question is: is there momentum here? Is the volume confirming the move? Is there a clean level to trade against? This is where active traders find their edge.
The reaction trade is more controlled. The unknown (the announcement) is behind you. What’s in front of you is price action and volume, which you can read.
What to Watch in the Pre-Market
The most useful time for earnings trading often isn’t after the open — it’s before it.
Most earnings announcements come out after the previous day’s close or before the pre-market session. That means by 7 or 8 AM, you can already see which stocks are gapping significantly on high pre-market volume. Those are the candidates.
In Scanz, a pre-market gap scan with filters for minimum percentage move (typically 5%+), minimum pre-market volume (50,000+ shares), and price range gives you a short list of stocks reacting meaningfully to overnight news — including earnings. The Scanner updates every 500ms, so you’re seeing the list in real time as pre-market trading develops.
The News feed adds context. Once you see a stock gapping, filter the news to that ticker and you immediately see whether it’s an earnings beat, a revenue miss, guidance raised, or something else entirely. The fundamental reason for the move matters — stocks gapping on an earnings beat with raised guidance behave differently from stocks gapping on a beat with weak guidance.
The Setup You’re Actually Looking For
Not every gap is worth trading. The ones active traders focus on share a few characteristics.
Volume confirms the move. A 10% gap on thin pre-market volume is far riskier than a 6% gap with 500,000 pre-market shares traded. Volume tells you whether institutions are participating or whether the move is fragile.
The float matters. Low-float stocks (under 20 million shares) react more violently to earnings catalysts because there are fewer shares available to absorb buying pressure. A positive earnings surprise on a low-float stock can move 20–40% in a single session. Higher-float stocks tend to have more measured reactions.
The price action at the open is the real entry signal. Most experienced earnings traders don’t chase the gap. They watch the first 5–15 minutes after the open, look for a consolidation or a pullback to a key level, and enter on a resumption of the move. The gap itself is the catalyst. The trade is what comes after.
Using the News Scanner to Filter for Earnings Catalysts
One of the ways active traders get ahead of earnings moves is by filtering news dynamically — not just watching one ticker, but watching the whole market for stocks reacting to catalysts in real time.
In Scanz, the News Scanner lets you combine stock filters with news type filters. Set filters for price range, minimum volume, and minimum percentage change, then filter news type to earnings and filings. What you get is a live feed of headlines for stocks that are already moving — so you’re not seeing a news item and then checking if the stock moved, you’re seeing news items only for stocks that already meet your criteria.
This matters at the open, when earnings reactions from overnight announcements and early-morning PR are all landing at once. The filtered news feed keeps you focused on the setups worth watching rather than noise.
Sizing and Risk on Earnings Trades
Earnings trades carry more volatility than a typical day trade. The moves are bigger in both directions, and stocks that gap on earnings can reverse sharply if the initial enthusiasm fades.
Experienced traders typically size smaller on earnings plays than on standard setups — not because they have less conviction, but because the potential range of outcomes is wider. A stock that gapped 15% can give back 8% of that by noon if selling kicks in. A smaller position size keeps the dollar risk in line with the rest of your trading even when the share price is moving more than usual.
The stop loss placement also matters more. On an earnings reaction trade, common levels are just below the consolidation zone after the gap, or below the low of the first candle after the open. If the stock can’t hold that level, the initial move is likely failing.
Frequently Asked Questions
What does it mean to trade earnings? Trading earnings refers to taking positions in stocks around their quarterly earnings announcements. Active day traders typically focus on trading the price reaction after the announcement — the gap, volume surge, or directional move — rather than predicting the outcome in advance.
Should you buy a stock before or after earnings? Most active day traders wait until after the announcement to trade. Holding into an earnings announcement is a binary bet on direction plus implied volatility, which creates more risk than most setups justify. Trading the reaction after the announcement gives you real price action and volume to work with.
How do you find stocks moving on earnings? A pre-market gap scanner filtered for minimum percentage move, minimum volume, and your price range will surface stocks reacting significantly to overnight news, including earnings. In Scanz, combining the Scanner with the News feed lets you see which gapping stocks are reacting specifically to earnings versus other catalysts.
What role does float play in earnings trading? Low-float stocks tend to have larger, faster reactions to earnings catalysts because there are fewer shares available. A positive surprise on a 5-million-share float can move the stock 20–40% in a session. Higher-float stocks (50M+) typically have more muted, steadier reactions that are easier to trade but offer smaller percentage moves.
How do you manage risk on an earnings trade? Size smaller than usual, given the wider potential range of moves. Place your stop below a clear technical level — typically the consolidation low after the gap or the low of the first candle at the open. If that level breaks, the initial reaction is failing and the trade is over.
What is the best time to trade earnings reactions? The most actionable window is typically 9:30–11:00 AM on the day of the announcement. Pre-market scanning from 7–9 AM helps identify the strongest candidates. The first 30 minutes after the open usually determine whether the gap is being bought and extended or sold into.
Start your 7-day free trial. Scanz gives you a real-time pre-market gap scanner and a filtered News feed to find earnings catalysts the moment they move. See exactly which stocks are reacting — and why — before most traders are at their desks. Try Starter or Pro today. No commitment, cancel anytime.