QuantRocket vs Composer (2026)
QuantRocket (docker-based python platform for research, backtesting, and live trading via ibkr/alpaca) and Composer (no-code platform for building, backtesting, and auto-trading rules-based strategies) solve backtesting differently. The table below compares them on verified specs and pricing; full details are in each review.
Side by side
| QuantRocket | Composer | |
|---|---|---|
| Overall score | 7.5 / 10 | 6.2 / 10 |
| Engine type | hybrid | visual/no-code |
| Pricing model | subscription | freemium |
| Free tier | Yes | Yes |
| Entry price | $0 | $0 |
| Languages | Python | No-code visual editor, Natural language (AI strategy generation), Composer API / MCP (language-agnostic, symphonies as structured scores) |
| Asset classes | stocks, etfs, futures, forex, options (data/execution, limited backtesting) | US stocks, ETFs, Crypto (state-eligible, via Alpaca Crypto), Options (covered calls & cash-secured puts, launched Dec 2025) |
| Bundled data | Paid license bundles: US Stock Prices (EOD + 1-minute, 2007-present, survivorship-bias-free), IBKR shortable shares, borrow fees and special margin requirements (2018-present, global), Alpaca easy-to-borrow (2019-present). Premium add-ons sold separately: Sharadar point-in-time US fundamentals/prices, EDI global stock prices, Brain sentiment. Free tier: ~30 sample symbols plus US stocks 2007-2011. | Bundled daily adjusted-close history for US stocks/ETFs (split/dividend adjusted) plus crypto; no separate data subscription or fees; historical depth varies by symbol and is not officially documented |
| Finest resolution | 1-minute historical (bundled US stock data); real-time tick/streaming collection via TimescaleDB and WebSockets | Daily. Backtests run on daily adjusted closing prices only; live strategies execute in a daily trade window with real-time quotes |
| Live trading | Yes | Yes |
| Options support | Yes | Yes |
| Open source | No | No |
QuantRocket
Docker-based Python platform for research, backtesting, and live trading via IBKR/Alpaca
Composer
No-code platform for building, backtesting, and auto-trading rules-based strategies
Frequently asked questions
Is QuantRocket better than Composer?+
They target different users. QuantRocket: python-fluent quants trading us equities and futures through interactive brokers who want a self-hosted, data-rigorous research and live-trading stack they fully control Composer: hands-off retail investors automating daily-rebalanced etf/stock rotation strategies without code. not for intraday traders or research-grade quants. Our scores: QuantRocket 7.5/10, Composer 6.2/10.
Which is cheaper, QuantRocket or Composer?+
QuantRocket entry pricing: $0 (subscription). Composer: $0 (freemium). See each review for full verified pricing tables.
Educational content only, not investment advice. Specs and prices come from each platform's official pages; see the individual reviews for sources and last-verified dates.