Jupyter Notebook · Apache-2.0
quantopian/alphalens
Performance analysis of predictive (alpha) stock factors
★ 4.5k
Stars
1.4k forks · 50 open issues
+2.3/day
Growth · measured
Stars counted between two of our own snapshots roughly a week apart. The repository page gives the exact span.
35.2
Momentum / 100
see the breakdown below
10y ago
Created
last push 2y ago
Star history
How this score was built
| Component | Weight | Earned | Why |
|---|---|---|---|
| Velocity | 55 | 9.9 | +2.3/day, log-scaled against a 750/day ceiling |
| Acceleration | 15 | 14.7 | last week ran 1.98× the monthly pace |
| Freshness | 15 | 0.0 | last push 2y ago; decays to zero at 180 days |
| Scale | 15 | 10.6 | 4.5k stars, log-scaled against 150k — stops a 3-star repo topping the board |
| Momentum | 100 | 35.2 | sum of the above |
Detail
| Topics | algorithmic-tradingfinancejupyternumpypandaspython |
| Matched on | Finance (algorithmic-trading, finance) |
| Short window | +16 stars over 7 days = 2.3/day |
| Long window | +30 stars over 26 days = 1.2/day |
| Lifetime average | 1.18 stars/day over 3,807 days |
| First seen here | 2026-10-11 |
| Last read | 2d ago |