16-9-2025 – The Altcoin Season Index stands at 70 out of 100, dipping marginally from 72 yesterday but climbing from 50 a week ago, indicating altcoins’ ongoing outperformance against Bitcoin. This metric, which gauges the top 100 altcoins’ returns relative to Bitcoin over 90 days, points to rising altcoin dominance and capital rotation in the market.
Institutional activity has intensified, with Galaxy Digital acquiring $306 million in Solana on September 15, part of a five-day spree totaling $1.55 billion in SOL, as reported by on-chain analytics firm Lookonchain. DeFi Development Corp added 196,141 SOL earlier this month, pushing its holdings past 2 million tokens valued at over $400 million, per a company filing. Helius Medical Technologies announced a $500 million raise on September 15, led by Pantera Capital, to establish a Solana treasury focused on staking and DeFi yields, according to a press release.
CleanCore Solutions, via its Dogecoin Foundation-backed treasury, purchased 285 million DOGE last week, elevating holdings above 500 million tokens worth $125 million, as disclosed in SEC documents. These moves signal deepening corporate adoption of altcoins for treasury strategies, bolstering liquidity and sentiment in a sector where altcoin market cap has surged 50% since July.
