Hindsight is 20/20. What if the market rallied five ticks after he placed the order? Would he have gotten the worst price then? It's hard to speculate on the reasoning for the buy but I doubt panic was involved.
Quote from mcurto:
Agreed with TomCole, 10,000 contracts in the 10yr note is nothing these days, only moving the market maybe 2 full ticks at most times. Also, whichever trader executed the order probably had a feeling that locals were short and he would try to jam them and force them to puke up their position by a certain price point. More often than not, on a messy order during a quiet day, its an institutional trader trying to push the market. Big brokers will usually work orders off the market on slow days (like a guy near me who fills for JP Morgan on the screen, they essentially held the 5yr note within its range today with their working orders).
