I watched a trader slam the Dax on Thursday pushing it down through the major support levels. Even if you are a big player you have to be aware that there are almost always bigger fish in these markets and who controls the size often wins when it comes to locals battling it out for short term gains. Our Dax trader, who was net short, kept noticing that someone was consistently bidding at support to keep the market up - once he was hit he would reload and bid again. Our Dax trader then started offering it to him and then hitting him with larger size to drive the market down further in an attempt to make him puke. The guy kept buying and our trader, getting progressively angrier and with more obscenities streaming from his mouth, just kept hitting him all the way down, with at least 600 lots to offer he could just keep selling and if one person couldn't absorb that amount or suffer the fall then he was going to get ironed out. He just kept squeezing this long and then the market fell very hard to which our trader became very happy and made another killing. These games go on a lot on the short term TFs.