Would like to know if any quants or traders on the board can describe the trading strategies that dominate the market, used as such firms hedge fund SAC which is about 5% of vol on NYSE. What combinations of futures, equity baskets, and index manipulation and other weapons and strategies are used to take the market up, down, or glue it sideways in a tight range? How do funds and banks bully the market in a tight range? In a detailed fashion, I am looking for some detailed explanations and hypothesis as to the latest block box trading strategies that is sucking the volaility up and running over many traders who play trends and coin more primarily in wet volatility environments. For the indie and prop traders out there, I believe it is in our best interest to collaborate "within reason" to intelligently decipher what we are up against. It would only help if there is more color on the manipulation and black box strategies that dominate the market and sub markets. This is not a loser framework: "Blame the hedge funds and Big Prop desk" thread. This is more of a "what the hell is going on" thread with the intention of enlightening the "Little" guy David as to the battleground landscape of the markets and the manipulative strategies of the Goliaths out there.