CCI, CIDM IPO's (filed/priced): Infoblox (BLOX) 7.5M shares priced @ $16, Proofpoint (PFPT) 6.3M shares priced @ $13 Key Research: Citi downgrades ALTR/ABFS, Imperial initiates NM, Wells downgrades FHN/CHK, DB downgrades SNDK Key Research: Piper initiates PRX/QCOR (ow's) and SGNT (neut), Brean Murray up