($SPX, $SPY, $AAPL) Be forewarned amid the cheerleading over the past three trading days. (Again, interest rates (lower) and gold prices (higher) are usually warning signs.)

I am now in a market-neutral mode and looking to get short on any further strength.

Tech underperformance has got to be worrisome for the bulls.

I might be talking myself into a market short, but I am keying short term on the Nasdaq leader, Apple (AAPL), which has been underperforming all day.

AAPL might mean somethin' or nothin' at all (maybe it's just a little profit taking).-D.Kass