Key Takeaways Data shows altcoin perp open interest passed bitcoin’s on Sept. 6, the first flip since Dec. 2024. Altcoins outside the top 10 top $200B, up 10% in September, and ZEC open interest hit a record $2.4B. The fear and greed index reads 71 and bitcoin’s dominance is 59%, leaving the flip fragile if funding turns. What Metric Flipped Actually? Aggregate open interest, the dollar value of futures contracts still open, in altcoin perpetuals surpassed the same figure for bitcoin yesterday. The last time the altcoin line sat above the bitcoin line was December 2024. The numbers are there …

