JPMorgan analyst Cory Kasimov upgraded Clovis Oncology (CLVS) to Overweight and raised his price target for the shares to $72 from $58. The stock closed yesterday up 2%, or $1.05, to $49.56. The shares are down 35% over the last two months for "no clear fundamental reason," Kasimov tells investors in a research note. The analyst is "increasingly comfortable" recommending Clovis ahead of its Phase 3 study evaluating Rubraca in maintenance ovarian cancer now that more PARP class data has emerged. He has not seen "convincing evidence" that there is a clear efficacy difference between Clovis' rucaparib, Tesaro's (TSRO) niraparib and AstraZeneca's (AZN) olaparib.

Bearish flow noted in AstraZeneca with 3,362 puts trading, or 1.7x expected. Most active are 4/26 weekly 70 puts and May-24 70 calls, with total volume in those strikes near 3,600 contracts. The Put/Call Ratio is 1.72, while ATM IV is up nearly 2 points on the day. Earnings are expected on April 25th.