nautilus-model 0.54.0

Domain model for the Nautilus trading engine
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# nautilus-model

[![build](https://github.com/nautechsystems/nautilus_trader/actions/workflows/build.yml/badge.svg?branch=master)](https://github.com/nautechsystems/nautilus_trader/actions/workflows/build.yml)
[![Documentation](https://img.shields.io/docsrs/nautilus-model)](https://docs.rs/nautilus-model/latest/nautilus-model/)
[![crates.io version](https://img.shields.io/crates/v/nautilus-model.svg)](https://crates.io/crates/nautilus-model)
![license](https://img.shields.io/github/license/nautechsystems/nautilus_trader?color=blue)
[![Discord](https://img.shields.io/badge/Discord-%235865F2.svg?logo=discord&logoColor=white)](https://discord.gg/NautilusTrader)

Trading domain model for [NautilusTrader](http://nautilustrader.io).

The `nautilus-model` crate provides a type-safe domain model that forms the backbone of the framework
and can serve as the foundation for building algorithmic trading systems.

## Platform

[NautilusTrader](http://nautilustrader.io) is an open-source, high-performance, production-grade
algorithmic trading platform, providing quantitative traders with the ability to backtest
portfolios of automated trading strategies on historical data with an event-driven engine,
and also deploy those same strategies live, with no code changes.

NautilusTrader's design, architecture, and implementation philosophy prioritizes software correctness and safety at the
highest level, with the aim of supporting mission-critical, trading system backtesting and live deployment workloads.

## Feature flags

This crate provides feature flags to control source code inclusion during compilation:

- `ffi`: Enables the C foreign function interface (FFI) from [cbindgen](https://github.com/mozilla/cbindgen).
- `python`: Enables Python bindings from [PyO3](https://pyo3.rs).
- `stubs`: Enables type stubs for use in testing scenarios.
- `high-precision`: Enables [high-precision mode](https://nautilustrader.io/docs/nightly/getting_started/installation#precision-mode) to use 128-bit value types.
- `defi`: Enables the DeFi (Decentralized Finance) domain model.
- `extension-module`: Builds as a Python extension module.

## Documentation

See [the docs](https://docs.rs/nautilus-model) for more detailed usage.

## License

The source code for NautilusTrader is available on GitHub under the [GNU Lesser General Public License v3.0](https://www.gnu.org/licenses/lgpl-3.0.en.html).

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NautilusTrader™ is developed and maintained by Nautech Systems, a technology
company specializing in the development of high-performance trading systems.
For more information, visit <https://nautilustrader.io>.

Use of this software is subject to the [Disclaimer](https://nautilustrader.io/legal/disclaimer/).

<img src="https://github.com/nautechsystems/nautilus_trader/raw/develop/assets/nautilus-logo-white.png" alt="logo" width="300" height="auto"/>

© 2015-2026 Nautech Systems Pty Ltd. All rights reserved.