Bitcoin (CRYPTO: BTC) exchange-traded funds (ETFs) experienced a substantial one-day reversal last week. Investors pulled out nearly $818 million as Bitcoin’s price plummeted to a nine-month low.

Data indicated that Bitcoin ETFs registered net daily outflows of $817.87 million on January 29. This pushed January into an overall negative zone. However, the cumulative net inflows since the inception of Bitcoin ETFs remained significant at $55.52 billion.