The S&P 500 towed an anchor for much of the summer as a historic momentum and leverage unwind under the surface dragged on the equity benchmark before breaking out to fresh records last week. While these mechanical drivers received most of the blame for the mid-year consolidation, higher Treasury yields were also a large part of the headwind. The 10-year yield has remained uncomfortably high as sporadic flare-ups in kinetic activity and unanswered questions around energy production and shipping disruptions in the Middle East have led markets to increase their expectations of a Federal Reserve (Fed) rate hike. And while the 10-year yield is viewed as one of the most important rates to monitor — due to its use as an economic indicator, a baseline rate for consumer and business loans, and the standard “risk-free” rate in financial models — the Treasury curve has made headlines for broadly shifting higher as well. Among highlights, the 30-year yield reached its highest level since 2007 in late July, and the two-year yield has traded above the fed funds rate — suggesting that fixed income markets expect policymakers to at least stick to “higher for longer.”

 

Fixed income investors have welcomed the more attractive yields, but do higher rates mean anything for equity markets? Historically, a rise in yields driven by economic growth is fine for stocks, but elevated yields caused by inflation worries can reach a threshold that spills into equity market selling pressure. Especially when the rise in rates is rapid as we’ve seen this summer. These factors have led stocks and rates to move in opposite directions in the past, and we’ve seen that dynamic come back into play at times again this year. As shown below, when the 10-year Treasury yield rises in a sustained move above the 4.3% range, the three-month weekly correlation with the S&P 500 flips negative, suggesting that stocks have struggled above this level. When the 10-year yield has entered this range, market concerns of higher rates potentially hurting the economy and the equity market via higher borrowing costs impairing demand for big-ticket purchases, weighing on stock valuations, and increasing the cost of capital (especially for the more debt-laden small cap space) begin to dampen risk appetite until upward pressure on yields ebbs. And, of course, higher rates drag down bond values (though the return prospects of future bond investments are lifted by those higher yields). 

 

Correlation Tends to Flip Negative When Yields Rise Through 4.30%

• Source: LPL Research, Bloomberg 08/12/26
• Disclosures: Past performance is no guarantee of future results. All indexes are unmanaged and cannot be invested in directly.

 

Where Do Stocks and Yields Go from Here?

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Negotiations in the Middle East are ongoing, and all parties still seem interested in eventually reaching a diplomatic resolution. While global economic impacts may change depending on how long that takes, once a deal is reached crude prices and Treasury yields are likely to come off recent highs, and we continue to expect the 10-year yield to finish the year between 4.00% and 4.50% (as discussed in Midyear Outlook 2026). With yields currently trading near 4.69% (as of Wednesday afternoon) and correlation leaning negatively, we would expect stocks to feel some support if upward pressure on Treasury yields eases — aligning with our expectations for modest equity market gains over the second half. However, our technical analysis work suggests a breakout higher cannot be ruled out, nor can the possibility that positive economic surprises spur Fed rate hikes. 

 

Digging in one level deeper, moves in interest rates have different effects on S&P 500 sectors and asset classes. As the correlation comparison data highlights below, higher yields could weigh more on materials, real estate, and developed market stocks, as they have been the most negatively correlated assets to 10-year Treasury yields over the last year (of course, a pullback in yields could be a tailwind to these areas as well). On the other side of the coin, and to little surprise, energy companies and crude oil futures could be relative outperformers in the event of a breakout higher in yields, as they have displayed the highest correlation to yields.  

 

Correlation Comparisons to 10-Year Yield

• Source: LPL Research, Bloomberg 08/12/26
• Disclosures: Past performance is no guarantee of future results. All indexes are unmanaged and cannot be invested in directly.
• Sectors are represented by GICS Level 1 S&P 500 Sector Indexes.

 

Conclusion

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At lower yield levels, rising rates signal growth, historically benefiting equities. However, as the 10-year Treasury yield moves further above 4.30%, rising rates increasingly represent a valuation and liquidity constraint, making equities more sensitive to further rate increases. The current environment, with 10-year yields trading at 4.69%, sits squarely in a near-term negative-correlation regime. We continue to expect yields will ease as markets gain more clarity on oil flows and production in the Persian Gulf, helping alleviate pressure on bond prices and ease the negative correlation with stocks.

 

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