As of Oct. 18, according to Credible data gathered from more than 500 U.S. lenders*, the median interest rate on a 30-year fixed-rate mortgage is 6.63%, which is 0.13 percentage points higher than yesterday. Additionally, the median interest rate on a 15-year fixed-rate mortgage is 5.88%, which is also 0.13 percentage points higher than yesterday.

Mortgage rates dropped before the Fed’s last meeting, and have risen more than 50 basis points since. If you’re wondering why, you’ll need to look at the 10-year Treasury bond yield.

On the flip side, an Oct. 9 Zillow analysis of homebuying data estimates that approximately 275,000 more households would benefit by refinancing at 6.1% than at 6.6%. According to Zillow, that 0.5-percentage-point rate increase represents a combined loss of over $6 billion in potential refinance savings over five years.