Wall Street veteran says these are some of the most unbelievable charts he has ever seen

A notable split has opened up inside the U.S. stock market. According to the report, the S&P 500 benchmark has fallen into deeply oversold territory, yet nearly half of its constituent stocks remain decidedly overbought. A Wall Street veteran quoted in the coverage described the resulting charts as some of the most unbelievable he has seen.

The divergence matters because index-level signals can mask what is happening beneath the surface. When the benchmark looks stretched to the downside while a large share of individual stocks look stretched to the upside, the average is being pulled by a narrower group of names rather than reflecting broad participation. That gap between the index and its components is what makes the picture unusual.

For observers, the takeaway is to look past the headline index number. Breadth measures—how many stocks are advancing versus declining, and how concentrated gains or losses are—can offer a clearer read on market health than the S&P 500 alone. Whether this split resolves through the index recovering or the overbought stocks cooling off is the key question to watch.