Why Is Treasury Yields Rising?
The 10-year TIPS real yield has surged 45 basis points over the past month to 2.48%, the highest since 2008, as investors price in a more hawkish Federal Reserve stance. Stronger-than-expected economic growth and sticky core inflation have pushed back expectations for rate cuts, while heavy Treasury supply continues to pressure bond prices. This real yield spike has direct implications for equity valuations: the S&P 500's forward P/E has climbed to 22.8x, and the resulting equity risk premium (earnings yield minus real yield) has compressed to just 1.91 percentage points, nearing the record low of 1.8pp seen in 2002.
Why Are Treasury Yields Rising Today?
Today's 8bp jump in the 10-year real yield to 2.48% was triggered by a stronger-than-expected September retail sales report and hawkish comments from Fed Governor Waller, who suggested that policy may need to remain restrictive for longer. The 10-year breakeven inflation rate remained stable at 2.25%, meaning the entire move was driven by real rates. This has immediate consequences: higher real yields increase the discount rate applied to future earnings, making high-multiple stocks less attractive. The S&P 500's dividend yield is now just 1.25%, while the real yield offers a risk-free alternative, creating a stark divergence.
Are Treasury Yields Going Up?
Absent a sharp economic slowdown, Treasury yields are likely to face upward pressure as the Fed maintains its restrictive stance and fiscal deficits require heavy issuance. The 10-year real yield could test 2.75% by mid-2027 if inflation remains above target and growth holds up. For equity investors, this means the margin of safety is thin: at a 2.75% real yield, the equity risk premium would turn negative for the first time since 2002, implying a fair value for the S&P 500 of approximately 4,900, roughly 15% below current levels. Monitoring the 10-year real yield is now more critical than ever for equity positioning.
Treasury Yields Today Chart: Key Levels to Watch
The accompanying chart shows the 10-year real yield (TIPS) and the S&P 500 forward earnings yield (inverse of P/E). The spread between the two—the equity risk premium—has narrowed to 1.91pp, well below the 20-year average of 3.5pp. The 10-year nominal yield stands at 4.73%, with the 2-year at 4.52%, indicating a flat curve. The S&P 500 is currently at 5,650, up 12% year-to-date, but the valuation cushion is eroding. A break above 2.75% in real yields would likely trigger a repricing of equities, particularly in the technology sector where forward P/Es exceed 30x.
