Every day, iSentium LLC, a little-known Florida-based technology company, analyzes one million tweets from traders, investors and market commentators to try to find out whether sentiment for a particular stock is generally high or low. The answer is simple: either a +1 or a -1 for each stock. Yet a handful of banks, hedge-fund firms and high-frequency traders have signed up for the daily indicator, at a cost of $15,000 per month per stock symbol. ...
Start - up iSentium analyses a million tweets a day from traders , analysts and market commentators to gauge sentiment . They system breaks down sentences into key components and analyses adjectives and actions associated with sentiment mentioned in tweets . It has 10 investors that are paying $ 15,000 per month per dollar symbol . They include large quantitative hedge funds , plus traditional hedge funds , investment offices and HFT firms that use the indicators for market - making strategies .