S3 Partners | Technology & Financial Data Analytics The Ultimate Information Source and Workflow Platform S3 Partners is a leading technology and financial data analytics company that allows Buy and Sell Side market participants to obtain a clear and accurate picture of capital markets trading activity in real time. S3 Partners provides the highest quality and most timely data for market Financing Rates (bid/ask/last), Short Interest, Float, Open Interest (Long Positions), and Proprietary Indexes (Squeeze, Crowded, Momentum). S3’s most used product, BLACK APP, is the market standard for real-time Short Interest and Securities Finance data for more than 65,000 securities on desktops globally. S3’s Financing OMS platform provides best execution for Securities Finance, allowing trading professionals to aggregate, optimize and score Position, Holdings, Cash, Margin and Swap Positions and enhance outcomes across the total life cycle of any trade—financing, derivatives and cash. S3 data is the market standard source for the financial news media such as Bloomberg, WSJ, CNBC and FT. No matter how you trade—discretionary or quant, derivatives or cash, outright or financing, price maker or price taker, deal underwriter or deal subscriber, alpha or beta—we have data, analytics and workflow tools for you.