If I was a Radian short, I'd be extremely nervous right now going into earnings. Extremely crowded short. Just look at frenetic shortcovering in Netflix, yesterday. Up $43 or 42% because the shorts (24% of the float as of 12/31/12) couldn't take the good news.
Radian is sitting with 28% of its float short. Not betting against Tommy's $10 bet. Even the debt ceiling issue in Congress, a linchpin to the short's thesis of economic headwinds looming ahead, is ebbing with a 3-month extension coming.