The cryptocurrency bitcoin , which saw stunning gains last year, lost its value over the past six months.

Since ratcheting up to more than $64,000 in November, the price of one bitcoin has now fallen more than 60 percent. On Friday it was trading around $30,000, after falling as low as $26,000 earlier in the week.

The sell-off is tied in part to rising interest rates and inflation that sits at 40-year highs, which has sent the broader stock market reeling. But the extent of bitcoin’s decline may come as a shock — especially to some investors who bought bitcoin during its most recent price run-up.