The Citigroup research team recently developed an interesting quantitative model - they found a clear mathematical relationship between the inflow and outflow of Bitcoin ETF funds and the price trend of coins.

How exactly is it calculated? For every $1 billion that flows out, the price of BTC is likely to retract by about 3.4%. This pattern also works in reverse: when there is a net inflow of the same amount, the increase is basically proportional. There is an analyst at Citigroup named Saunders, who based on this model directly gave a pessimistic year-end prediction—if the funding situation remains stable (that is, a zero net inflow state), the target price is seen at $82,000.

The problem is that the current situation is worse than "zero inflow." Actual data shows that the ETF has seen outflows of billions of dollars consecutively. If this trend continues, there may be further room for price correction. The market sentiment indeed needs some time to digest.