Desperate to stem the continuing plunge in its share price, which has plummeted to $24 from $40 in less than a week, Santa Clara, California-based 3Com Corp rushed out an announcement that earnings for the fourth quarter to May 31 are expected to reach $0.40 a share on sales of about $167m, up 100% and 33% respectively from a year earlier; early estimates indicate orders for the quarter will be about $166m, up 32% on a year ago.