Valley companies half as likely to have a woman on board

A press release from Spencer Stuart, the executive recruiting firm, celebrates a "milestone": More than half of the Silicon Valley companies it tracks now have at least one woman on their boards of directors. This is not the accomplishment they would have you think: Among the boards of companies on the S&P 500, 89 percent have at least one woman, and women make up 15.7 percent of S&P 500 directors, versus 8.9 percent in the Valley. Progress, perhaps, but progress that highlights the tech industry's lingering sexism.