What CPI Actually Is — and Why It Moves Your Mortgage Rate

Douglas Wilkerson

Published on: 26/10/2026

September CPI came in hot at 3.7% — and the 10-year Treasury jumped 11 basis points in 15 minutes. Here's how CPI actually moves your mortgage rate, in plain math.

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What CPI Actually Is — and Why a 0.6% Print Moves Your Mortgage Rate

Douglas Wilkerson

Published on: 21/10/2026

September CPI printed 3.7% on October 14, 2026 — and the 30-year mortgage average sits at 7.40%. What CPI actually measures, the bond-market chain that turns it into your rate, and what to do before the Fed meets October 27–28.

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What CPI Actually Is — and Why It Moves Your Mortgage Rate

Douglas Wilkerson

Published on: 03/10/2026

The September CPI lands Oct 14 — and history says a 0.2% surprise can move your mortgage rate nearly half a point in a day. Here's what CPI actually is, how it becomes your rate, and what to do before the print.

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