hi sam,
oh, my response was geared more towards the "hard-to-borrow" aspects and the effects on the option market when a tender offer occurs. as you know, currently, there is at least a $6 premium for the shares that will be taken in, but the premium on the puts should still exist even if that $6 gap suddenly thinned to nothing. for the most part, the general mispricing has a lot to do with the availability of the float (low). some strike levels are priced according to speculative play, but if you look at every series, most of the options are pretty much evened out on the synthetic level, although it's done at a discount relative to the common. the value of the puts are inflated to accomodate the lack of accessibility to short in the market. and if you look at the adjacent calls, especially the deep ones, they are priced for early exercise because they are risky to hold. marketmakers want to short them instead, even if it's only temporarily, so some of the bids might not even be priced at what is deserved by the intrinsic.
anseld