USA Today's Paul Davidson looks at new data from MPF Research that show that the share of renters opting to renew has hit a high-water mark.

About 53.8% of renters decided to stay put through the first seven months of this year, an increase of nearly 100 basis points from 2015 and far above the historical long-term average of around 45%. Part of what's driving the trend is a lack of affordable options, as the new-construction pipeline continues to...