An industry trade group has released a study concluding that algorithmic and high-speed traders have had little effect on market volatility. The study focused on 15 futures contracts on IntercontinentalExchange, NYSE Liffe, CME Group and Eurex. The study was "not really looking at HFT per se, but just looking at the broad arc in terms of the behavior over time," said Charles Jones, a finance professor at Columbia University. "What they're saying is, taken together, all the changes we've seen in markets haven't increased volatility." Learn more at SIFMA's Equity Market Structure Resource Center.