The number of Fortune 500 companies with no female directors is down from 50 in 2013 to 23 this year, according to Fortune magazine—which names and shames those 23 companies. Perhaps that’s because governance committees are catching on to what the data are saying. Thomson Reuters found that gender-diverse boards tend to have less volatile stock returns, as well as higher or similar returns. It would be a stretch to conclude causality, but it’s certainly suggestive. The chart below is from the Thomson Reuters report.