Memecoins Rally as Altcoin Season Gains Momentum Ahead of Fed Rate Decision

Bitcoin’s dominance is slipping as traders shift focus to altcoins, with memecoins leading recent gains. Over the past month, Bitcoin’s market share has fallen 3.5%, pushing altcoin season indexes—measuring top cryptocurrencies against BTC—into “altseason” territory.

Altseason occurs when alternative cryptocurrencies outperform Bitcoin, often triggered by capital rotation as investors embrace higher-risk assets. Social media chatter about an impending Fed interest rate cut is fueling this momentum, as lower rates make traditional safe-haven assets less attractive.

Indexes such as CoinMarketCap and CoinGlass highlight this trend. In the last 24 hours, Bitcoin edged up just 0.3%, while the CoinDesk Memecoin Index (CDMEME) surged 7.1%. Tokens driving the rally include SHIB and BONE, which spiked despite the recent Shibarium flash loan exploit.

Traders anticipate a 92% probability of a 25-basis-point Fed rate cut this month, according to Polymarket, with the CME FedWatch tool showing similar odds.

Meanwhile, a wave of U.S. altcoin ETFs, including potential DOGE and TRUMP ETFs, could debut in the final quarter of the year. Approval would offer regulated exposure for retail and institutional investors, broadening access to cryptocurrencies beyond Bitcoin and Ether.