The S & P 500 just suffered its worst week in nearly two months, stalling at a technical level that concerns many chart analysts.
The loss put the S & P 500 below 4,100 at the end of last week, cutting 2023 gains to about 7%.
.SPX YTD mountain S & P 500 "The SPX broke out above 4,100 in early February, but closed below it last week.
He cautioned that if the S & P 500 breaks below 4,100, there could be more downside.
The S & P 500 rose 0.8% on Monday, taking the benchmark above the 4,100 level.