The bears fired a shot across the bow, but one or two days is not enough to reverse a strong uptrend. There were already warnings of a correction or pullback because SPY has been more than 10% above its 200-day since August 12th and QQQ has been 20% above its 200-day since July 6th. Of course, overbought indicators are not very good for timing a correction.
In fact, I have yet to find a good indicator for timing a peak/pullback during a strong uptrend.
Thursday’s decline amounted to an outsized loss. The 5.07% loss in QQQ was the largest since the 11.97% decline on March 16th, while the 3.44% loss in SPY was the largest since the 5.77% loss on June 11th. An outsized loss is like a hard right to the jaw. While it may not knock the bulls out, it is enough to destabilize the market for a period.
SPY stumbled for two to three weeks after the June 11th decline. This implies that a correction needs some time to run its course.
FROM ART HILL