Find patterns.
See what came next.

Patternly compares today's market against 10 years of history to surface the moments that look exactly like now — and what happened next.

How it works
1
We look at today's chart
Every session, we capture SPY's intraday price action as it develops — building a live fingerprint of how the market is moving right now.
2
We find similar moments in history
Using Dynamic Time Warping (DTW), we scan 10 years of hourly data and surface the 3–5 past periods whose shape most closely matches today's pattern. Not price level — shape.
3
We show what came next
For each matched pattern, we show what the market actually did afterward: the next day, the next week, the next month, and three months out. No forecast — just the historical record.
What this is (and isn't)

Patternly is a pattern recognition tool. It is not a prediction engine, a financial advisor, or a trading system. Past patterns don't guarantee future results — markets change, context changes, and the same shape can resolve very differently depending on what else is happening.

We built this because we wanted to ask "has this happened before?" — and get an honest answer. The tool shows you the data. What you do with it is entirely up to you.

Who built this
Patternly is built by a solo designer in New Jersey. If you've found a bug, have feedback, or want to see a feature added, reach out: patternly@lololocreative.com