Quote from Cutten:
Based on watching the trading on Eurex, that really didn't look like people trying to get in and out pre-figure (as has happened on prior reports). The Bund sold off 140 ticks, going 10-20 ticks at a time, with volume around 20,000-30,000 contracts - that only happens when a deluge of market orders hits the market. There is no way that such volume would hit the market on a stop, or "getting in and out" pre-figure.
IMO it is obvious what happened. Reuters released the news at 14:28, and everyone with a Reuters sent market orders to sell. Then they realised that Bloomberg and other news feeds had NOT released the news, so now they are in a dilemma - they have shorted a boatload at low prices, but it looks as though Reuters release was a screwup. Sure, it could be the right figure at the wrong time - but given that it's out at the wrong time, maybe the figure is also wrong? So, they went to cover their shorts, because they had no idea if the figure was correct or not. This spiked the price back up. Then when the "official" figure came out, everyone sold again.
The key question is whether Reuters screwed up, or leaked deliberately. It is *probably* the former, but could be the latter. Either way, they should be banned from releasing US government figures for the next few months. They will then have an incentive to release information without major screwups.