Quote from mcurto:
First of all, I would get a copy of Galen Burghardt's The Treasury Bond Basis, as this book explains squeezes perfectly. Squeeze situations can occur because of when and if large market players in Treasuries (one of them being Pimco more often than not) decide to roll their futures position. Someone with a big position like Pimco will monitor the Sep/Dec spread because they will often have a fair value for the spread that tells them when to begin rolling the position or at least look for opportunities to roll. At this point, it may be too expensive for Pimco and others to roll as once again the September contract is valued so much higher than the others (was way higher than the June causing spread to go negative and way higher than the Dec causing spread to widen big time). That is why there was a HUGE Lehman Bros. account rolling Sep into Dec as soon as the June contract expired (considered extremely early for rollover), but at the time the spread was probably more reasonable to their fair value, was trading around 23. The same thing occured in the five-year note, Lehman Bros. again, each contract they did about 80,000. In my opinion the CBOT has created greater problems by instituting the position limits in the Dec contract, because the cash market characteristics may not be the same, and generally in the last 10 days of the contract its usually just a couple big players looking to roll a position, they don't need to be told the risks. A lot of the squeeze stuff is simply increased activity in Treasury futures because of great liquidity and easy execution and not enough issuance in the cash market. One of the markets is growing significantly while the other is not able to catch up as of yet. We could possibly see some guys just liquidate their position starting with the Dec in the last 10 trading days rather than roll into the March 06 contract, depending on where the spread and their fair value are at.