Herbalife Ltd. (NYSE: HLF) shares added 9.8% to $76.71, on share volume of 2.1 million, or nearly five times its average, after the seller of weight-reduction supplements late Tuesday projected a first-quarter profit that beat predictions.

Micron Technology (Nasdaq: MU) traded Wednesday in 52.2 million shares, surpassing a daily average of 36.3 million. Prices for MU faded 3.4% to $10.55

Ramtron International Corporation (Nasdaq: RMTR) capsized 13.7% to $2.20 Wednesday, on share volume of more than 419,000, nearly four times its daily average, a day after announcing quarterly numbers that featured total revenue of $16.1 million, compared with total revenue of $14.4 million for the same quarter last year. Net income for the fourth quarter of 2010 was $471,000, or $0.02 per share, compared with net income of $755,000, or $0.03 per share, in the prior-year quarter.