U.S. spot bitcoin ETFs faced their worst month on record in June, losing a total of $4.5 billion in value. This significant decline marks a challenging period for cryptocurrency-related exchange-traded funds, according to CoinDesk.

The downturn highlights increased volatility and investor caution in the crypto market, especially for products tied directly to bitcoin's spot price. This development could influence broader market sentiment toward digital assets in the coming months.

For Japanese investors, who have shown growing interest in cryptocurrency ETFs, the U.S. market’s sharp drop serves as a reminder of the risks involved in crypto asset exposure amid fluctuating global conditions.