In mid-April, Lehman Brothers reckoned that there were $18 billion to $25 billion of mark-to-market losses residing in ABS CDOs both deals that had already closed and those still in the works. It is therefore not surprising that activity in the ABS CDO market seemed to dry up overnight; and appetite for home equity loan ABS dried up along with it. But within a few weeks the underlying market seemed to have staged a remarkable recovery; spreads in HEL ABS were tightening by eye-watering increments thanks to buying by those same ABS CDOs happily ramping up as before....