Higher yields are taking their toll on all areas of the stock market, except the one that matters

Since the start of September, rising Treasury yields have pressured most corners of the U.S. equity market. Of the S&P 500's 11 sectors, only technology has posted a gain over that stretch, according to the source, while yields have climbed to multi-decade highs. The pattern is a reminder of how sensitive stock valuations are to the direction of interest rates.

The mechanism is straightforward. Higher yields raise the return available on government debt, which competes with equities for investor capital. They also lift the discount rate used to value future corporate earnings, weighing most heavily on sectors whose cash flows are expected further out or tied to borrowing costs, such as utilities, real estate and consumer discretionary names.

Technology's relative resilience is notable, but it is not immunity. What matters going forward is whether yields stabilize or continue climbing, and whether earnings growth can offset the pressure from rates. Investors watching sector leadership should focus on the direction of Treasury yields and upcoming inflation and labor data, which shape rate expectations.