Shares of Tandem Computers Inc and Sequent Computer Systems Inc fell on Wall Street yesterday morning after First Boston Corp analyst Steve Milunovich downgraded his rating on Tandem to sell from hold and on Sequent to hold from buy: he thinks Tandem stock could drop to around $9 to $10 within six months on a further softening in revenue from customers in the financial community, impending margin pressure and poor near-term earnings momentum; Milunovich says Sequent’s first-quarter 1991 earnings could come in below expectations at 22 cents a share because of a likely decline in OEM demand.
