Quantopian
Description: Quantopian is an online platform for building and testing algorithmic trading strategies. It provides a Python-based IDE, historical market data, and an engine for backtesting trading algorithms.
Type: software
thinkorswim
Description: thinkorswim is an advanced online trading platform for stocks, options, futures, and forex. It offers powerful analysis tools, virtual trading capabilities, and education resources for active traders.
Type: software