Crypto analyst Ali Martinez argued that a metric in Bitcoin was giving a rare signal. Crypto analyst Ali Martinez said that the sharp decline in Bitcoin’s Sharpe ratio, a risk-return indicator, could signal a favorable period for long-term buying in the spot market. According to data shared by Martinez, Bitcoin’s Sharpe ratio has fallen to minus 23. The Sharpe ratio, which measures the return an investment provides in relation to the risk or volatility undertaken, indicates strong returns relative to risk when it is positive, while negative values point to periods where investors face significant losses.