BCA Research maintains a constructive view on U.S. equities and an 8,100 year-end target for the S&P 500, but warns that higher bond yields, slower earnings growth and heavy IPO issuance now threaten further gains in valuations. The firm says the bull market is becoming increasingly dependent on earnings rather than multiple expansion.
Valuations compress even as stocks rise
U.S. stocks can keep climbing, but the advance will increasingly hinge on earnings strength as valuation pressures build, BCA Research analysts said. The firm is keeping a constructive view on equities and an 8,100 year-end target for the S&P 500, and describes higher bond yields, slower earnings growth and heavy IPO issuance as a three-pronged threat to valuations.
The S&P 500's forward price-to-earnings ratio has fallen to 19.4 from 21.5 over the past six months, a historically large compression. BCA called the decline unusually benign, since earnings expectations have risen faster than share prices, rather than the multiple falling because of a drop in equities.
Higher yields threaten expensive stocks most
Higher yields pose the biggest valuation threat, particularly for high-multiple stocks whose cash flows sit further in the future. Treasury yields have risen as markets shifted from pricing Federal Reserve cuts to anticipating rate hikes, while sticky inflation, persistent U.S. deficits, rising corporate capital expenditure and policy uncertainty have added further pressure on rates.
BCA's analysis found that expensive stocks have historically suffered most when yields climb. Among the 500 largest U.S. stocks, the most expensive group generated a 1.67% annualized one-month forward return during rising-rate periods, compared with 6.75% for the cheapest group.
Earnings growth and IPO supply add pressure
Earnings growth remains strong but could moderate after a particularly strong 2026. BCA said next-12-month S&P 500 earnings growth is currently expected at 20.3%, while the 2027 estimate of 14.9% implies a slowdown. Slower growth from a high starting point could still support positive returns, but the analysts said it would limit further multiple expansion.
The third risk comes from the IPO cycle. BCA said there is no systematic evidence that large IPO waves reliably precede market peaks, but elevated issuance can weigh on valuations. Historically, strong returns and multiple expansion have pulled IPO activity forward, while heavy issuance has subsequently been associated with weaker returns and P/E compression.
BCA remains overweight technology and favors large-cap companies with realized earnings and durable cash flows. The bull market can continue, the analysts said, but it is becoming increasingly earnings-driven, leaving less room for valuation expansion to support returns.
Source: Investing.com
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