ChainCatcher news, according to Cointelegraph, in December, the purchase volume of Bitcoin spot ETFs reached 51,500 BTC, while the monthly production of miners was only 13,850 BTC, indicating that the demand for Bitcoin spot ETFs exceeds the supply by about 272%.Cryptocurrency researcher Vivek stated that a supply shock is imminent after observing that the balances on Bitcoin trading platforms have dropped to a new low.