Shares of EMC, the world’s biggest maker of storage computers, tumbled after forecasting full-year profit that trailed analysts’ estimates and as VMware, the software maker it mostly owns, said it is considering job cuts.

Quest Software, a maker of software to help companies manage cloud computer systems, rose above a new $25.50-a-share cash buyout offer from a strategic bidder that topped a previous agreement with Insight Venture Partners.

Quest Software rose above the $23-a-share offer from Insight Venture Partners to take the technology company private, signalling investors may anticipate higher bids.