Last week’s surprise earnings forecast by IBM...

Last week’s surprise earnings forecast by IBM forced the market, including most high-technology stocks, to dip along with the giant computer manufacturer, said Irving Katz, director of research at Mason, Hunt & Co.

San Diego, which has few high-technology companies, surprised investors by registering six new highs last week. “That makes 11 new highs for local companies during the past two weeks,” said Katz.

PS Group, which was carried by investor Warren Buffett, climbed another $2.125 to close at $51.75, another new high.

National Health Laboratories reached a new high of $16.625 by tacking on $2.25. The company is controlled by Ronald Perelman of Revlon fame.

Rohr Industries, on the strength of a $138-million Boeing contract, recorded a new high of $20.25 as it gained $1.125.

Other new highs were recorded by MarrowTech, $6.6875; Infrasonics, $3.6875; Immune Response, $8.625.

Good gains also were reported by DH Technology, which gained $1.375 to $11.125. The company was featured in a national magazine as a “high-stepper” with a low price/earnings ratio, Katz said.

Burnham Pacific Properties gained $1.125 for the week as investors continue to seek out undervalued real estate in San Diego.

Price Co. gained $2.25, where it is selling at a price-to-earnings ratio of 17.7. That compares to Costco’s price-to-earnings ratio of 42.3.

Gensia Pharmaceuticals successfully sold 2.3-million shares at $14.50 and closed unchanged for the week at $15.25. On the down side, Magma Power was down $2.50 as Dow Chemical, its majority shareholder, filed for $150 million of exchangeable notes, which would effectively eliminate about 5 million of Dow’s 7.8 million Magma shares.

WD-40 fell $2.25 after announcing quarterly earnings of $.53, up from $.48 a year earlier, but flat six-month earnings.