As of May 2025, many signs suggest that an altcoin season may be on the horizon. Bitcoin’s market dominance has dropped from around 60% in late 2024 to about 51%, which often signals that traders are moving their money into altcoins instead of just holding Bitcoin. According to the Altcoin Season Index by Blockchaincenter, which tracks whether altcoins are outperforming Bitcoin, recent data shows the index pushing above 75 — a key indicator that altcoin momentum is building. At the same time, the total market cap of altcoins has reached a record high of $1.89 trillion, surpassing previous highs seen during the 2021 bull run (Binance Research).
However, a full altcoin season is not guaranteed just yet. Bitcoin is still holding a significant share of the market, and its price movements continue to influence the entire crypto space. Additionally, regulatory uncertainty — especially in major markets like the U.S. — is keeping some investors cautious when it comes to smaller, riskier coins. According to Bitrue’s 2025 market analysis, institutional players are waiting for clearer regulations before jumping heavily into altcoins. Still, with increasing altcoin trading volumes and growing retail interest, the market appears to be slowly shifting, and if the trend continues, a stronger altcoin season could unfold in the coming months.