BEA Systems ( BEAS) soared 18.5% after Oracle ( ORCL) said Wednesday it will buy BEA for about $19.38 a share in cash, or roughly $8.5 billion. Oracle's price is still below the $21 a share that BEA said last year it wanted, but it is 14% higher than Oracle's original bid of $17 a share. BEA rose $2.88 to $18.46, while Oracle was up 61 cents, or 2.9%, to $21.92. Chip maker AMD ( AMD) gained 44 cents, or 7.2%, to $6.56 after its rival Intel ( INTC) guided below analysts' expectations for the first quarter. AMD shares are now up 23.5% from its 52-week low of $5.31 on Jan. 9. Intel plunged 12.4%, a day after the company's fourth quarter earnings report . Meanwhile, Tampa, Fla.-based Syniverse Holdings ( SVR) rose 16.1% to $15.75. The provider of technology services for wireless telecoms announced Tuesday after the close that it expects 2007 revenue between $369 million and $371 million, up from $328.9 million in 2006. It also predicts non-GAAP income to range from $74 million to $75.3 million, up from $57.3 million a year ago. Analysts polled by Thomson Financial forecast $365.9 million in revenue and income of $72.7 million. Wells Fargo ( WFC) shares were also doing well after fourth-quarter income, at 41 cents a share, met the Wall Street consensus despite representing a 35.9% slide from a year earlier. Factoring in heavily here was a 27-cent credit-loss provision. Shares of the San Francisco bank climbed 2.7% to $27.20. On the flip side, struggling financial guarantor Ambac ( ABK) was plummeting 34.5% after it predicted a fourth-quarter operating loss of up to $5.80 a share and said CEO Robert Genader is retiring. He'll be replaced by Michael Callen in the interim. In order to maintain its triple-A rating at Fitch, which demands certain capital levels, the New York-based company also plans on issuing at least $1 billion in equity and equity-linked securities, as well as slashing its dividend by two-thirds to 7 cents a share. On top of all that, the mortgage-brutalized Ambac may also reinsure or issue debt securities in order to dump further cash into its reserves. Shares of the New York firm were falling $7.30 to $13.84 as a prominent peer, MBIA ( MBI), sank 13.5% to $13.89. Also on the losing side, California Pizza Kitchen ( CPKI) fell 17.7% to $10.10 after the announcing last night that fourth-quarter earnings would be lower than expected . The Los Angeles restaurant chain sees EPS of 16 cents to 18 cents, compared with previous guidance for 22 cents to 23 cents. On average, the Street is looking for 23 cents. Hi-Tech Pharmacal said Wednesday that the regulatory agency granted final approval to the company's generic of GlaxoSmithKline's Flonase nasal spray for allergic and non-allergic rhinitis. Hi-Tech said it will immediately begin shipping its fluticasone propionate nasal spray, 50mcg. The branded and generic nasal spray garnered sales of $700 million for the 12 months ended June 2007, according to IMS sales data. The company added $1.83, or 19.2%, to $11.35. Last, in case you missed it in last night's "Late Winners & Losers" , Theravance ( THRX) said Tuesday post-close that it will offer $150 million of unsecured notes due in 2015, using the proceeds for general corporate purposes. Merrill Lynch and Goldman Sachs are joint-book running managers for the offering, and underwriters were granted a 30-day option to purchase an additional $22.5 million in notes to cover overallotments. Shares of the biopharmaceutical company fell $2.29, or 10.6%, to $19.39 on heavy volume Wednesday.