Stock futures down 23 points and will trade at lowest since Jan 21

The stock market was clinging to support on Friday after a late-day slide and it's sure to break at the open.

"Markets rarely bottom on Fridays. With the S&P 500 clinging to support from the late-Jan lows, it doesn't look good for Monday," I wrote on Friday.

In the futures market, the January low is now only 2.6% away.