On 04/21/26 only the Nasdaq Composite (IXIC) made a new all-time high unconfirmed by the other two main U.S. stock indices, S&P 500 (SPX) and Dow Jones Industrial Average. This was illustrated in the 04/21/26 blog “Bearish Momentum Signal – 04/21/26”. The bearish signal is invalidated if two of the three main stock indices make new all-time highs in the same day.
On 04/23/26 both IXIC and SPX made new all-time highs.
The 30 – minute SPX and IXIC chart courtesy of Trading View illustrates the action.

Soon after the new highs there was a sudden and sharp decline. This quick reversal is suspicious.
On 04/24/26 there could be another instance of only one main U.S. stock indices making an all-time high.
On 04/24/26 watch SPX and IXIC.