The International Securities Exchange (ISE) is an all-electronic US options exchange offering options trading on over 2,000 underlying equity, ETF, index, and FX products. An API is available for the Options Trading System (OTS). Developers can use the API to create applications that send trading commands and/or queries to, and receive broadcasts and/or transactions from, the trading system. Firms can customize their trading applications to fit their firmâ€™s risk management and order-flow systems. All applications developed must be certified by the ISE. Documentation is not publicly available.
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