NautilusTrader vs AmiBroker (2026)
NautilusTrader (open-source event-driven trading engine with a rust core, a python api, and true backtest-live parity) and AmiBroker (windows desktop platform for high-speed portfolio backtesting in the afl language) solve backtesting differently. The table below compares them on verified specs and pricing; full details are in each review.
Side by side
| NautilusTrader | AmiBroker | |
|---|---|---|
| Overall score | 7.9 / 10 | 7.8 / 10 |
| Engine type | event-driven | hybrid |
| Pricing model | open-source | one-time |
| Free tier | Yes | Yes |
| Entry price | $0 | $0 |
| Languages | Python (3.12-3.14 API), Rust (core engine) | AFL (AmiBroker Formula Language), C++ (plugin ADK), JScript/VBScript (OLE automation) |
| Asset classes | Equities, Futures, Options, FX, Crypto (spot and perpetuals), Betting markets (Betfair), Prediction markets (Polymarket) | stocks, ETFs, futures, forex, mutual funds, crypto (via imported data) |
| Bundled data | None: bring your own data. First-party adapters cover Databento (equities/futures/options ticks) and Tardis (crypto L2/L3), and a Parquet-based data catalog handles custom data. | No market data is bundled. The AmiQuote companion app (included in the Ultimate Pack, $99 standalone) downloads free EOD data from Yahoo Finance and Stooq, plus limited free intraday from Barchart OnDemand. Paid sources (Tiingo, eSignal, IQFeed, Norgate, Interactive Brokers) plug in when you need higher quality. |
| Finest resolution | Nanosecond (tick, trade, and order-book events) | tick (Professional edition, with a tick-capable feed such as eSignal or Interactive Brokers); Standard edition is limited to minute bars |
| Live trading | Yes | Yes |
| Options support | Yes | No |
| Open source | Yes | No |
NautilusTrader
Open-source event-driven trading engine with a Rust core, a Python API, and true backtest-live parity
AmiBroker
Windows desktop platform for high-speed portfolio backtesting in the AFL language
Frequently asked questions
Is NautilusTrader better than AmiBroker?+
They target different users. NautilusTrader: experienced python developers and quants who want institutional-grade, tick-level backtests that deploy unchanged to live trading. multi-venue crypto and event-driven strategies are the sweet spot. AmiBroker: systematic eod and swing traders on windows who want the fastest affordable portfolio-level backtesting and optimization, own their data pipeline, and don't need turnkey live execution or options modeling. Our scores: NautilusTrader 7.9/10, AmiBroker 7.8/10.
Which is cheaper, NautilusTrader or AmiBroker?+
NautilusTrader entry pricing: $0 (open-source). AmiBroker: $0 (one-time). 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.