15-Year Fixed Mortgage Rate vs S&P 500 Price-to-Earnings Ratio (Forward)

How These Two Indicators Relate

15-Yr Mortgage sits in the rates category and S&P 500 P/E sits in the growth category, so they describe different parts of the same economy. Watching them together provides cross-checks: a coordinated move in both directions confirms a regime shift, while a divergence often reveals which sector of the economy is leading or lagging.

Both readings are currently moving lower. 15-Yr Mortgage has moved lower -0.1% since the prior release; S&P 500 P/E has moved lower -1.20. When two related indicators decline together, the move usually reflects a real economic shift rather than measurement noise.

What 15-Year Fixed Mortgage Rate Measures

The 15-year fixed mortgage rate is the average interest rate on a conventional 15-year home loan. It offers a lower rate than the 30-year fixed but with higher monthly payments due to the shorter repayment term. Sourced from Freddie Mac's weekly Primary Mortgage Market Survey.

At 5.89%, the 15-year fixed rate carries a roughly 0.75 percentage point discount to the 30-year rate. Borrowers choosing the 15-year term pay significantly less in total interest over the life of the loan — typically saving over $100,000 on a $400,000 mortgage. For financial advisors and wealth managers, the spread between 15-year and 30-year rates signals how the market prices term risk. A narrowing spread suggests lenders expect rates to decline.

Methodology: Freddie Mac surveys lenders weekly to compile the Primary Mortgage Market Survey. The 15-year rate reflects the average offered rate for a conforming 15-year fixed loan with 20% down payment to a borrower with strong credit. Actual rates vary based on creditworthiness, down payment, and loan size. Source: FRED at the St. Louis Fed (series MORTGAGE15US).

What S&P 500 Price-to-Earnings Ratio (Forward) Measures

The forward price-to-earnings ratio measures the S&P 500 index price relative to expected earnings per share over the next 12 months. It is the most widely used valuation metric for the U.S. stock market.

The S&P 500 forward P/E at 20.3x has declined from its recent highs but remains above the 25-year average of approximately 16.5x. Markets are pricing in solid earnings growth but are no longer at 'euphoric' valuations. For executives evaluating M&A, stock compensation, or capital market activity, current valuations suggest a market that is fairly valued to modestly expensive — not cheap, but not at bubble levels either.

Methodology: Forward P/E divides the current index price by the consensus estimate of aggregate earnings per share over the next 12 months. Analysts at major banks and research firms provide earnings estimates for individual S&P 500 companies, which are aggregated by data providers like FactSet, Bloomberg, and S&P Global. Source: S&P Global (series SP500_PE).

How These Comparisons Are Built

Each pairwise comparison page is statically generated from the live indicator dataset — values, trends, and source links are pre-rendered into HTML at build time. When the underlying dataset refreshes (each indicator on its own publication schedule), the comparison page regenerates automatically. ExecBolt does not estimate, model, or interpolate any reading; every value comes from the publishing agency’s primary release. For the full sourcing approach, citation format, and known limitations, see the methodology page.

For plain-language guides to the concepts behind 15-Yr Mortgage and S&P 500 P/E, see the learn library. For tools that translate macro readings into business outputs (DCF, runway, break-even), see the calculators page. Authoritative external context comes from the Federal Reserve’s FRED database, the U.S. Bureau of Labor Statistics, the U.S. Bureau of Economic Analysis, and the SEC EDGAR system.

Frequently Asked Questions