• IBM (NYSE:IBM) posted first quarter earnings of $1.97 versus $1.70 a year earlier on a 5% revenue increase to $22.9 billion, beating Zacks EPS estimates of $1.94 and revenue projections of $22.8 billion.  The firm also raised its full year guidance to at least $11.20 for the year, compared with its prior outlook of $11.00

• Procter & Gamble (NYSE:PG) raised its quarterly dividend 9.5% to 48 cents per share from 44 cents

• Union Pacific (NYSE:UNPO) received a higher ratings outlook as S&P lifted the rating from stable to positive

• Analysts expressed concerns over Apple’s (NASDAQ:AAPL) ability to meet iPad demand as supplies of touchscreens prove tight

• United Healthcare (NYSE:UNH) posted sharply better-than-expected first quarter earnings of $1.03 up from 81 cents a year ago, and sharply higher than Zacks projections of 68 cents. Revenues of $23.19 billion beat Zacks estimates of $22.7 billion. The firm said it sees 2010 earnings of $3.15 to $3.35 a share on revenues of about $92 billion

• Goldman Sachs (NYSE:GS) reported a 91% gain in first quarter net income, with earnings of $5.59 up from $3.39 a year ago, sharply higher than Zacks estimates of $3.98.  Revenues of $12.78 billion also beat Zacks estimates of $11.17 billion

• Bank of New York Mellon (NYSE:BK) reported first quarter results of 46 cents a share, up from $0.28 a year ago, on revenues of $2.57 billion

• Coca-Cola (NYSE:KO) reported first quarter earnings of 80 cents, which was ahead of Zacks estimates of 74 cents on revenues of $7.53 billion, which was below Zacks estimates of $7.79 billion

• Johnson & Johnson (NYSE:JNJ) reported a 2-cent earnings beat, with interims of $1.29 on inline revenues of $15.6 billion. Full-year guidance was $4.80-$4.90

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