More earnings reports are due Wednesday morning before opening bell: Humana Inc (NYSE:HUM), IntercontinentalExchange Inc (NYSE:ICE), Markel Corporation (NYSE:MKL), Phillips 66 (NYSE:PSX) and Msci Inc (NYSE:MSCI).

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Humana Inc (NYSE:HUM) is expected to report earnings of $1.79 per share on revenue of $10.3 billion, according to a consensus of analysts polled by Bloomberg Businessweek. The company’s last three earnings reports have been positive surprises, although it posted a negative surprise in the first quarter of last year. In February, Humana shares rose to the highest level they have been traded at since July on the heels of the company’s positive fourth-quarter earnings report.

Analysts predict that IntercontinentalExchange Inc (NYSE:ICE) will report earnings of $1.97 per share on revenue of $347 million. The company’s last five earnings reports have been small positive surprises.

Earlier this year, IntercontinentalExchange Inc (NYSE:ICE) said it plans to sell its NYSE equities unit. The company announced its merger with NYSE Euronext back in December.

Analysts are looking for Markel Corporation (NYSE:MKL) to report earnings of $5.47 per share on $787 million in revenue. The company’s last five earnings reports have all been positive surprises.

In its shareholder letter earlier this month, Markel Corporation (NYSE:MKL) CIO Tom Gayner said 2012 was a phenomenal year for the company. It acquired Alterra Capital Holdings Ltd (NASDAQ:ALTE) and returned 20 percent on its equity holdings and 5 percent on its fixed income portfolio last year. That generated an overall return of 9 percent for 2012.

Phillips 66 is expected to report earnings of $1.89 on revenue of $41.44 billion, according to Yahoo! Finance. That’s a decline of 9.5 percent from the same quarter last year. Over the past four quarters, the company has beat on earnings expectations.

Analysts are expecting Msci Inc (NYSE:MSCI) to report earnings of 53 cents on revenue of $258 million for the first three months of the year. The company’s last five quarters have had mixed results, passing earnings expectations in two of the five quarters and narrowly missing them in two of the quarters, including the first quarter of last year.