We're working on a set of open source tools for Stellar that are related to trading. Instead of one monolithic project, we've broken them down into tools, library and services that could be individually reused. Here are the sub projects:
Mirror Trading Bot
A tunable bot that can mirror trades made by other accounts in real-time . Compliments other social trading services without giving away your private key.
Trading Portfolio Management
A portfolio management, aggregator, and leaderboard service that tracks portfolio trade positions, estimated net value, and profits for as set of Stellar accounts, as well as compute leaderboards. Supports a REST API interface to query positions, metrics, and leader board.
A pub sub service that publishes the latest price and price change (since last close) for any set of Stellar assets. Supports multiple clients and all Stellar assets. Each client may subscribe to a different set of assets. Designed to make efficient calls to Horizon.
High-Level Stellar JS Library
A JS library that provides promisfied abstractions for common Stellar operations. Support multiple assets, trading, path payments, multi-sig, and other operations.
A convenient high-level CLI tool for common Stellar operations. It can be used to manage multiple Stellar accounts. Besides payments, it also supports multiple assets, custom asset management, path payments and trading.
A CLI shell that supports multisig, works with encryped keys, and other common operations. Designed to conveniently work with multisig.
Edit- All projects now posted.