Diamond Offshore ( DO) estimates cut at Guggenheim through 2013, Guggenheim said. Recent fleet status suggested potentially lower utilization rates. Buy rating and $77 price target. IHS ( IHS) estimates, target raised at Credit Suisse. Shares of IHS now seen reaching $113, according to Credit Suisse. Estimates also increased, given the company's new guidance. Outperform rating. Jabil Circuit ( JBL) numbers cut at Citigroup. Shares of JBL now seen reaching $21, Citigroup said. Estimates also lowered on disappointing outlooks from major customers. Neutral rating. Micron ( MU) estimates cut at Credit Suisse through 2013, Credit Suisse said. Expect lower memory pricing. Outperform rating and $12 price target. Oracle ( ORCL) numbers raised at Jefferies. Shares of ORCL now seen reaching $32, Jefferies said. Estimates also raised on lower forecast tax rate. Hold rating. Oracle estimates increased at Citigroup through 2014, Citigroup said. Guidance looks reasonable given macro and currency backdrop. Buy rating and $34 price target. Paccar ( PCAR) estimates, target lowered at Credit Suisse. Shares of PCAR now seen reaching $47, according to Credit Suisse. Estimates also cut, given reduced domestic truck orders. Neutral rating. PerkinElmer ( PKI) added to Conviction Buy List at Goldman. PKI was placed on the Conviction Buy list, Goldman Sachs said. Company is expanding margins and offers growth at an attractive price. $34 price target. TIBCO Software ( TBX) numbers lowered at Jefferies. Shares of TIBX now seen reaching $36, Jefferies said. Estimates also lowered on slower EMEA demand. Buy rating. Watson Pharmaceuticals ( WPI) added to Conviction Buy List at Goldman. Company offers the highest growth in the generics space. $87 price target. Zynga ( ZNGA) estimates, target reduced at BofA/Merrill. Shares of ZNGA now seen reaching $7, according to Bank of America/Merrill Lynch. Estimates also cut, given slower sales growth. Neutral rating. >To submit a news tip, email: email@example.com.