Between April 25 and May 18, 2026, the CHF swap 10Y rose from 0.61% to 0.77%. An increase of 16 basis points, which equals a relative rise of just under 26% in less than four weeks. With noticeable effects on fixed-rate mortgage interest rates. What are the reasons?

The UBS Swiss Real Estate Bubble Index rose sharply in the first quarter of 2026 and is approaching the warning zone. What the metric actually measures and which conclusions prospective buyers should draw from it.