Tech giants SanDisk, Hewlett-Packard and Oracle go head-to-head, all in Friday's Analysts' Actions. SanDisk had its price target cut to $82 at Pacific Crest. Earnings estimates were also reduced after the company slashed its revenue guidance on weaker demand for storage chips. Pacific Crest also weighed in on Hewlett-Packard, cutting its full-year earnings estimates to $3.56 a share. Analysts said given its 37% exposure to Europe, currency headwinds remain a concern. Likewise, Oracle had its earnings estimates trimmed at BMO Capital on foreign exchange challenges. The firm now expects 2015 profits of $2.86 a share.