During the 11 trading days from 2/28 to 3/15, Intel short interest increased by another 18m shares to 233,896,426 from 216,006,917.
That is an average increase in the short interest of 1.6m shares per trading day.
Apr 20th option volume was interesting too.
It looks like someone accumulated 26,000 strangle contracts. They buy the APR $22 CALL and the APR $21 PUT for about 55 cents. It looks like they are betting on a earnings move outside the $22 to $21 range of more than 55 cents. The open interest in both are about 100k contracts. Nice balance.