The Altcoin Season Index measures how well altcoins perform relative to Bitcoin, helping investors identify shifts in market trends. When altcoins outperform Bitcoin—often seen when Bitcoin dominance falls and altcoin trading volumes rise—it signals "altcoin season." This index considers factors like price performance, market capitalization, trading activity, and sentiment to indicate when capital is flowing from Bitcoin into altcoins. By tracking it, investors can spot opportunities to diversify, adjust their strategies, and manage risk in this highly volatile market.