Polymarket Odds Sweep

pro

When the crowd suddenly changes its mind on a prediction market.

What it is

Odds shift several percentage points fast, with rising volume — that's a sweep. Means a lot of money piled in one direction at once.

Why it matters

Sweeps mean crowd conviction just shifted. Usually happens hours before mainstream news catches up. You can ride the move or fade it.

How to read the alert

Look at the size. >10 percentage points on $1M+ volume = strong signal. Cross-check related crypto markets — they often move together. Don't fight a sweep on $5M volume.

Sample alert

📈 "BTC > $120K by Dec" · odds 41% → 58% · volume +$2.1M in 12 minutes

Each alert includes

Market question
Odds before/after, size of the shift
How big the volume spike was
Direct link to the market