Shares of Dynamex (DDMX) are +12.3% to $23.72, climbing above a mystery bidder's $23.50/share...

|By:, SA News Editor

Shares of Dynamex (DDMX) are +12.3% to $23.72, climbing above a mystery bidder's $23.50/share offer that the company disclosed yesterday and suggesting investors expect an even higher bid. Greenbriar Equity made a $21.25/share offer earlier this month.