Altcoin perpetual futures open interest has exceeded Bitcoin’s for the first time since December 2024, according to Coinalyze data, indicating a shift in derivatives positioning across crypto markets. Open interest is the total value of unsettled derivative contracts. The market capitalization of altcoins outside the top 10 has risen above $200 billion, gaining more than 10% since the start of September, while Bitcoin continues to trade above $80,000. ZEC provides a notable example: its open interest reached a record $2.4 billion in early September, and $34 million in short liquidations occurred as its price moved above $1,000. Analysts have observed that liquidation events tend to accelerate when aggregate open interest approaches about 4.42% of total market capitalization, a level at which leveraged exposure can become vulnerable to rapid unwinding. Noted trader Ted has highlighted the potential for altcoins to outperform during this phase while warning that the risk profile is elevated. The previous crossover, in December 2024, preceded sharp corrections in several mid-cap tokens, although Bitcoin remained relatively stable. This episode may differ because the broader altcoin market-cap increase suggests spot buying is accompanying futures activity rather than derivatives alone driving the move. However, ZEC’s large open interest also shows how substantial leverage can create risks for both short and long traders. Market participants are watching whether the open-interest-to-market-cap ratio continues rising toward levels historically associated with liquidation cascades.