Here's another theory for this week's market skid — the 'buyback blackout'

CNBC -

CNBC—Worries about the rising interest rate environment was a major driver for the market sell-off Wednesday.

Wells Fargo: Market 'tailspin' could last another one to two weeks. The sell-off across the market is going to continue for at least another week, Wells Fargo says after the worst day for the Dow Jones Industrial Average and S&P 500 since February.