Just caught the Altcoin Season Index jumping to 37 on CoinMarketCap, up 5 points from 32. That means more than a third of the top 100 alts are now outperforming Bitcoin over the last 90 days. Still nowhere near the 75 threshold for a full altcoin season declaration, but the direction feels interesting.

Historically, we've seen these index climbs lead to some pretty explosive moves. Back in early 2021, when altcoin season really kicked off, this thing stayed above 75 for months while Ethereum, Cardano, and Solana absolutely pumped. The mechanics are simple: the index just tracks how many major alts beat BTC's returns in a rolling quarter.

What's driving it now? Probably a mix of Ethereum momentum, DeFi developments, and traders rotating into higher-beta assets after extended Bitcoin-led runs. The real question is whether this holds or fades. Watching for a sustained push above 50 next—that would signal we're moving toward a more balanced market. Not saying altcoin season is here, but the momentum shift is worth paying attention to. Anyone else noticing alts moving independently lately?