Express Scripts (ESRX), which rallied 5.4 percent yesterday after the company announced plans to acquire Medco (MHS), is up another $1.46 to $56.81. A noteworthy recent options trade in ESRX is a four way spread, in which the strategist sold Jan13 40 – 42 “stupid” put spreads at $4.20 (sold both legs), 5000X, to buy the Jan13 60 – 70 call spread at $3.50, 10000X. All four legs of the spread look opening and the position seems to be a bullish play in anticipation of a move beyond $60 in ESRX shares through 2013. 30,000 calls and 12,000 puts now traded in the name. MHS is seeing action as well. Shares are up $2.17 to $66 and Oct 52.5 puts are the most actives. 4,508 traded. There’s some doubt about the deal clearing anti-trust hurdles. For that reason, perhaps, MHS closed Thursday almost $10 below the proposed takeover offer.