Risk analysis 101: Why entry signals are useless without downside measurement

Most trading content focuses on entry signals. Pattern detected. Breakout confirmed. Time to buy.

But here's what nobody asks: *What's the downside if you're wrong?*

**The problem with entry-only thinking:**

Two stocks both show cup and handle breakouts today.

* **Stock A**: Entry at $50. Support at $48. Downside risk: 4%
* **Stock B**: Entry at $50. Support at $42. Downside risk: 16%

Same pattern. Same entry price. Completely different risk profiles.

If you're only looking at entry signals, these look identical. But Stock B can wreck your account on a failed breakout.

**What downside measurement actually means:**

Before entering any trade, you need three numbers:

1. **Entry price** – Where you're buying
2. **Target price** – Where you're taking profit
3. **Stop price** – Where you're wrong and need to exit

From those, you get your **risk/reward ratio**.

Example:

* Entry: $50
* Target: $58 (16% upside)
* Stop: $47 (6% downside)
* Risk/reward: 2.67 to 1

**Why this matters more than win rate:**

You can win 60% of trades and still lose money if your risk/reward sucks.

* Win rate: 60%
* Average win: +5%
* Average loss: -8%
* Net result: You're bleeding money

Flip that:

* Win rate: 45%
* Average win: +12%
* Average loss: -4%
* Net result: You're profitable

**How to measure downside on patterns:**

1. **Find the invalidation point** – Where is support? What price level makes this pattern "broken"?
2. **Calculate the distance** – How far from entry to invalidation?
3. **Compare to upside target** – Is the risk/reward worth it?

**Cup and handle example:**

* Entry: $52 (handle breakout)
* Target: $60 (depth of cup added to breakout)
* Stop: $49 (below handle low)
* Downside: 5.8%
* Upside: 15.4%
* Risk/reward: 2.66 to 1

That's tradeable.

**Bull flag example:**

* Entry: $45 (flag breakout)
* Target: $52 (pole height added to breakout)
* Stop: $43 (below flag low)
* Downside: 4.4%
* Upside: 15.6%
* Risk/reward: 3.5 to 1

Even better.

**Red flags to avoid:**

* Risk/reward below 2:1 (you need 70%+ win rate to profit)
* Stop loss more than 10% away (too much downside)
* No clear invalidation point (you're gambling, not trading)

**Bottom line:**

Entry signals get you into trades. Risk management keeps you in the game.

Don't take a trade just because a pattern formed. Take it because the risk/reward makes sense.

What's your minimum risk/reward ratio before entering?