Why is the stock market down today?

Today the S&P 500 is down 1.42%, the Nasdaq 100 is down 1.91%, and the Dow is down 1.16%. The biggest driver is stronger-than-expected April nonfarm payrolls (+253K vs +185K consensus), which pushed Fed rate-cut expectations from June to September. That drove the 10-year Treasury yield up 11bps to 4.42%, triggering a risk-off rotation out of equities and growth assets. Middle East tensions and a 2.3% spike in WTI oil are amplifying the selloff.

Catalyst doesn’t make single-day point forecasts, but the recovery odds depend on three things: tomorrow’s economic data calendar, whether yields stabilize below 4.45%, and whether oil pulls back. If the Fed-decision catalyst on May 14 is read as dovish, mean-reversion is more likely. Watch the VIX — readings above 25 historically precede multi-day drawdowns.

High-duration growth sectors are taking the biggest hit because higher yields compress their valuations: technology (especially megacap and semis), consumer discretionary, and unprofitable growth names. Defensive sectors like utilities, staples, and healthcare are outperforming. Energy is the only sector positive on the day, lifted by the oil move.

A single down day is not a correction. The S&P 500 would need to fall 10% from its recent high to qualify as a correction; today’s move puts the index roughly 4-5% off that high. Catalyst’s framework looks for sustained mechanism reinforcement — if rate-cut expectations keep moving out AND geopolitical risk keeps escalating AND yields break above 4.50%, the probability of a deeper drawdown rises materially.