Jefferies Financial Group Inc. (NYSE:JEF) will release earnings for its first quarter after the closing bell on Wednesday, March 25.Analysts expect the New York-based company to report quarterly earnings of 91 cents per share, up from 57 cents per share in the year-ago period. The consensus estimate for Jefferies Financial's quarterly revenue is $1.98 billion (it reported $1.59 billion last year), according to Benzinga Pro.Jefferies Financial shares gained on Tuesday after reports suggesting that Japan's Su ...