Alpha Discovery · Catalyst Analysis

#17 How to Score Catalyst Events Before Trading a Stock

Apr 14, 2026 · 6 min read

Live capture of Catalyst Surge Analysis in Inveflo.

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0) Where to Find This Widget

Inveflo 12-tile dashboard — path to Catalyst Surge

Live capture of Dashboard in Inveflo.

TL;DR

Earnings Beat (EPS surprise >5%): Score 85-95 (real surprise power)
Guidance Raise (FY2026+ guide +10%): Score 75-85 (forward-looking signal)
M&A Announcement (price 20%+ above prior close): Score 90+ (transformational)
Product Launch or News (competitor threat): Score 60-75 (event-dependent)

1) What This Widget Solves

Catalyst strength varies wildly. A 2% earnings beat is noise. A 15% surprise is a real breakout catalyst. Without quantification, you treat all events equally. Catalyst Surge solves this by scoring event magnitude, not just presence.

2) How to Read Catalyst Scores

Score 85+: Real catalyst. High probability of meaningful 5-10% move.

Score 70-84: Moderate catalyst. Breakout possible but not guaranteed.

Score 50-69: Weak catalyst. Use as confirmation only, not primary entry.

Score < 50: No catalyst. Wait for catalyst-led setups.

3) Practical Application

If Catalyst Score 85+: High conviction entry. Pair with CSS ≥75 for maximum breakout probability. Position size = 3-5% risk.

If Catalyst Score 70-84: Moderate conviction. Wait for technical confirmation (breakout structure). Position size = 2-3% risk.

If Catalyst Score < 70: Use as secondary confirmation only. Primary entry signal must be technical setup or CSS score, not catalyst alone.

Frequently Asked Questions

How do I know if an earnings beat is strong enough to trade on?

EPS surprise magnitude matters: >10% beat = score 85+, strong catalyst. 5-10% beat = score 75, moderate. <5% beat = score 50, noise. Always pair with guidance direction: beat + guidance raise = maximum strength. Beat + flat guidance = catalyst weakness.

Should I size bigger when catalyst score is 90+?

Only if CSS ≥75 + analyst signal ≥70 align. High catalyst alone doesn't guarantee move. Rule: max size = 5% only when all three factors (catalyst, CSS, analyst) align ≥75. Catalyst 90+ + CSS 50 = wait for CSS confirmation before upsizing.

What if catalyst score rises 2 days after price already moved?

Late catalyst discovery = reduced edge. Price already adjusted; momentum may stall. Use as exit warning if catalyst score <70 and price is up 8%+. Trim 50% if catalyst fails to confirm technical strength, or hold if CSS remains >75.

Can guidance cut (negative catalyst) override a CSS buy signal?

Yes. Negative catalyst (guidance cut, downside revision) cancels CSS entry. If CSS = 80 but guidance cut = -40 catalyst score, skip entry or reduce position to 1%. Guidance changes override technical patterns 80% of the time in mean-reversion scenarios.

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