Ambarella (AMBA) was downgraded to sector weight at Pacific Crest.
BlackBerry (BBRY) was downgraded to market perform and assigned an $11 price target at Raymond James.
Hess (HES) was downgraded to neutral and assigned a $58 price target at Goldman Sachs.
Intuitive Surgical (ISRG) was downgraded to hold and assigned an $870 price target at Canaccord.
Occidental Petroleum (OXY) was initiated with a neutral rating and $69 price target at MUFG.
PVH Corp. (PVH) was upgraded to outperform and assigned a $136 price target at Credit Suisse.
Simon Property Group (SPG) was upgraded to buy at Mizuho.
Symantec (SYMC) was upgraded to overweight and assigned a $38 price target at Barclays.
Tesoro (TSO) was upgraded to overweight at Morgan Stanley.
Valero Energy (VLO) was downgraded to equal-weight at Morgan Stanley.
Whiting Petroleum (WLL) was downgraded to sell and assigned a $7.25 price target at Goldman Sachs.
Cimarex (XEC) was downgraded to neutral and assigned a $133 price target at Goldman Sachs.
Zynga (ZNGA) was upgraded to overweight and assigned a $4 price target at Piper Jaffray.