October Market Rotation Puts Cash Flow and Stock Breadth in Focus

October’s nearly flat index performance concealed a sharp change in what the market rewarded. Investors saw broader participation among stocks, lower valuations and greater scrutiny of whether companies can pay for artificial intelligence (AI) spending with cash generated by their businesses. The shift came as the Federal Reserve held its benchmark rate at 3.75 to 4 percent on October 28, while the 10-year Treasury yield hovered near 5 percent.

The S&P 500 closed at 7,744 that day, about 1 percent below its October 6 record. The Nasdaq was nearly 4 percent below its own peak. The following morning, Alphabet fell 10 percent in premarket trading after reporting negative free cash flow. Those moves suggest that the market’s attention has shifted from interest rates alone to the financial strength behind corporate growth.

Rates held steady, but cash flow took center stage

The Federal Reserve’s decision was a pause, with no signal in the statement that its approach had changed direction. The statement said inflation “remains elevated” and described growth as moving at a “strong pace.” Two members, Governor Lisa Cook and Cleveland Fed President Beth Hammack, favored a quarter-point increase. Futures markets still leaned toward an increase in December.

Bond yields offered a different signal from the rate decision itself. The 10-year Treasury yield, a key reference point for valuing future corporate profits, peaked at 5.31 percent on October 5. It dropped below 5 percent on October 22, marking its largest one-day decline since March 2023, as investors moved from an AI selloff into Treasuries. By October 28, it was near 5 percent.

Lower yields generally support growth companies because their expected profits are valued further into the future. Yet those companies drew less benefit in October. The market appeared to place more weight on whether firms can generate cash now and finance their plans internally. A lower discount rate can help a stock’s valuation, but it doesn’t resolve questions about spending or the cash available to cover it.

Profits are rising as valuations ease

The S&P 500’s forward price-to-earnings ratio fell to 18.7 on October 23, according to FactSet. That measure compares current share prices with expected profits over the next year. The October reading was below the five-year average of 19.8, the 10-year average of 19.1 and the 22.5 recorded a year earlier.

Companies’ reported performance has helped support prices even as valuations declined. Third-quarter profit growth was tracking at 29.5 percent, which would mark a third consecutive quarter above 25 percent. Net profit margins stood at 14.9 percent, their second-highest level in more than 15 years. The combination points to a market where prices slowed while profits kept expanding.

That strength is concentrated, however. FactSet estimates that third-quarter growth would fall from 29 percent to 20 percent without Micron and Nvidia. The gap matters: a strong headline figure can mask dependence on a small number of companies, leaving the broader market more exposed if their results weaken.

AI spending has made cash generation a particularly visible dividing line. Alphabet’s free cash flow turned negative by $9.1 billion as the company invested heavily in AI. Microsoft, which generated $18.6 billion in free cash flow while making similar spending commitments, rose more than 3 percent. The contrast suggests that investors are still willing to reward AI investment, while examining how companies fund it and what remains after the bills are paid.

More stocks shared the gains

Market breadth—the extent to which advances reach beyond a few of the largest companies—reversed sharply in October. Through October 27, the equal-weighted S&P 500 was ahead of the cap-weighted index by 4.1 percentage points for the month. Dow Jones Market Data described that as the largest monthly reversal in favor of the average stock in its history.

The divergence was visible on October 22: the S&P 500 declined 1.4 percent even as 324 of its companies rose. For the year to date, the equal-weighted index had moved in front, gaining 13.4 percent against 13.1 percent for the cap-weighted index. When all companies receive the same weight, gains among smaller index members can offset weakness in the largest stocks. The index can therefore appear subdued even as many constituents advance.

Sector returns show how capital shifted. Energy was up 53 percent year to date, alongside oil prices that topped $114 a barrel. Technology was up 33 percent despite losing ground during October. Health care, materials and consumer staples had gained 12 to 16 percent for the year, with each adding 6 to 8 percent in October alone. Utilities, consumer discretionary and communication services were down for the year; communication services had fallen 12 percent after losing another 7 percent in October.

The pattern is consistent with money moving away from crowded trades and into a wider set of businesses. Several of the stronger sectors also tend to include companies with current cash generation. That may help explain why an easing in yields coincided with broader participation, while heavily weighted technology names lost ground.

A stronger dollar narrowed international gains

International stocks had outperformed U.S. large companies by the widest margin since 2007 in 2025, helped by a dollar decline of 9.4 percent. This year, currency has been a headwind. The dollar index reached its highest level since April 2025 on October 12, and Touchstone estimates that currency effects have trimmed about 3 percentage points from the MSCI EAFE index’s year-to-date return.

Through October 28, developed international stocks, measured by the largest MSCI EAFE fund, were up about 9.7 percent for the year including dividends, compared with 14.2 percent for the S&P 500. The case for international exposure still includes lower valuations, a different mix of sectors and the possibility that currency effects may change. But the recent performance shows how a stronger dollar can reduce returns for U.S. holders even when overseas shares rise.

October’s rotation leaves three near-term developments in focus: the week’s GDP and inflation reports, remaining results from the largest technology companies and the Federal Reserve’s December meeting. Rates continue to shape valuations and currency moves, while free cash flow has become a test of whether companies can sustain investment without relying on favorable financing conditions. The month’s action points to a market increasingly attentive to the breadth of profit growth and the cash behind corporate plans.