Bay Area stocks rebounded somewhat in late afternoon trading, with 14 of the 50 companies tracked by the Examiner earning share price increases by market close, up from only two earlier in the day.

Intuitive Surgical Inc. (ISRG), SunPower Corp. (SPWR) and Gilead Sciences Inc. (GILD) saw the largest share price increases, ranging from 2.19 percent for Foster City’s Gilead to 4.30 percent for Intuitive Surgical. Gilead had released new data on a hypertension drug today, according to a news release.

San Jose’s Altera Corp. (ALTR) continued at the bottom of the The Examiner’s 50, suffering a 15.69 percent loss in share price after releasing quarterly data with revenues that did not meet Wall Street expectations. Juniper Networks Inc. (JNPR) of Sunnyvale was also down 8.40 percent.

The markets overall ended low, with the Dow down 0.01 percent, the Nasdaq down 0.88 percent and the S&P 500 down 0.24 percent.

Top-volume trading of Bay Area stocks, as usual, went to the tech giants, with Intel Corp. (INTC), Sun Microsystems Inc. (JAVA) and Cisco Systems Inc. (CSCO) in the lead.