I run my own calculations, and Flash Alpha is a great model to compare against.

I've been using FlashAlpha while developing my trading application, Navigator Pro, and it has become an important part of my development workflow. The API is well designed, the documentation is clear, and integrating it into my project has been straightforward. What stands out most is the quality of the options analytics, dealer positioning data, and market structure insights, which have helped me build and test features much more efficiently than if I had to calculate everything myself. Performance has been reliable, and whenever I've had questions, the FlashAlpha team has been responsive and genuinely open to feedback. Overall, FlashAlpha has saved me a significant amount of development time and has proven to be a valuable platform for developers and quantitative traders looking to build professional trading tools.

I've been using FlashAlpha's GEX API (lab.flashalpha.com) for months as a core data source in my SPX/SPY 0DTE trading pipeline, gamma flip, call wall, put wall, and regime classification feed directly into my aggregator and have been genuinely useful for reading dealer positioning intraday. The data itself has been reliable and the levels line up well with actual price action, particularly around put/call wall reactions in negative gamma regimes.