vectorbt
Python library for very fast vectorized backtests, ideal for testing thousands of parameter combinations.
Unbeatable speed for exploring many parameter combinations at once.
Who it is for
People who already use pandas and NumPy and want to test many strategy variants quickly.
Strengths
- Vectorized approach: fast for sweeping many parameter combinations.
- Active project (commits in October 2026).
Good to know
- Not "pure" open source: the Commons Clause forbids selling the software or a service whose value derives substantially from it.
- Testing thousands of combinations and keeping the best one is the classic recipe for overfitting: always validate out of sample.
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We set it up, connect it to your accounts and keep it running.
Real-life uses
Strategy health report
🔥 High demandWeekly comparison of live results vs backtest expectations to detect when an edge fades.
Sources
Every fact on this page comes from these sources, checked on 2026-10-24. If something has changed, the source wins; tell us at contact@tradebotcheck.com.
- https://github.com/polakowo/vectorbt/blob/master/LICENSE.md: Apache 2.0 license with Commons Clause and what it forbids
- https://github.com/polakowo/vectorbt: language and project activity
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