Altcoin Season Could Begin in October: 3 Signals You Shouldn’t Ignore

With Bitcoin still dominant, altcoins have struggled for most of 2025. But analyst Crypto Decoder points to three early indicators that an altcoin season could ignite soon: a weakening U.S. dollar, a rebounding copper-to-gold ratio, and Ethereum gaining strength over Bitcoin for the first time in years.

The U.S. Dollar Index failing to break higher suggests risk appetite may be returning. At the same time, the copper-gold ratio just bounced from lows, and ETH is attracting institutional flows through ETFs.

If the Fed cuts rates in September as expected, and macro signals align, October may trigger a new altcoin rally—similar to past post-halving surges. Analyst Michaël van de Poppe notes the Altcoin Season Index bottomed in June, just as it did before previous bull runs.

Q4 could be the turning point altcoin holders have been waiting for.