Longbow Research downgraded Seagate Technology. STX and Western Digital Corporation WDC on Monday, from Buy to Neutral ratings. Although specialist Joe Wittine doesn't think that investors should get rid of these stocks, he does not see as much upside potential in them as he did 18 months ago. "After the 20-30% share appreciation since mid-October and total 18 month returns of 85%+ for WDC and 61% for STX, we no longer see the required 20% upside in order to maintain our BUY ratings for putting new money to work," Wittine explained. But, how to other analysts feel about these and other data storage companies? Are there better options in the industry? Seagate Technology. STX Longbow's downgrade was accompanied by a $67 price target, although the stock currently trades around $68.36. Unlike Wittine, Ananda Baruah of Brean Capital reiterated a Buy rating on Seagate, boosting the price target from $70 to $83 on the back of positive December-quarter projections.