The total cryptocurrency open interest has fallen below $140 billion, reaching its lowest point in five months. This decline coincides with Bitcoin's price dropping below $100,000, marking a significant 40% decrease in open interest over the past month. The market had previously peaked at $233 billion on October 7, but has since experienced a sharp 25% decline within just five days. Additionally, daily trading volumes have decreased by 35%, falling from nearly $400 billion to under $260 billion. The last time open interest was at this level, in June 2025, Bitcoin experienced a 26% price increase in the subsequent months, suggesting potential volatility ahead.