Can we quantify an altcoin season?

[etfs]

Advanced traders use Altcoin/BTC ratios and sector performance indicators. For example, when 75–80% of altcoins in the top 100 outperform BTC over a 60-day period, it’s a strong alt-season signal.

[jacson4]

Yes — many traders use the “Altcoin Season Index” where over 75% of top coins outperform BTC.

[alex10]

Altcoin season can be measured through dominance charts and cross-market performance ratios.