https://www.siliconvalley.com/2022/03/24/bubble-watch-mortgage-rate-spike-is-the-worst-since-1980/ > “Bubble Watch” digs into trends that may indicate economic and/or housing market troubles ahead. > Buzz: As house hunters grapple with record-high home prices another financial blow hits — a sudden rise in mortgage rates pushed the average 30-year rate to 4.42% this week. It’s a stunning jump that harks back to the sharp loss in borrowing power during the infamous rate spike of 1980.