CryptoQuant data indicates that altcoin exchange deposits have reached their highest transaction count since October 2025. The seven-day count of altcoin deposit transactions on tracked exchanges rose to 78,000 on September 28, marking an approximate 160% increase from the 29,800 recorded on September 14. During this same period, the number of unique addresses depositing altcoins nearly tripled, climbing from around 17,600 to 51,600. CryptoQuant described the surge in inflows as broad-based and noted that such movements typically indicate an intent to sell.
This spike in deposits coincides with Bitcoin pulling back after briefly exceeding $87,000 last week, its first time above that level since January. Market structure data shows Bitcoin’s share of total crypto market capitalization remaining below 60%, fluctuating between 58% and 60.4% since May 27. Meanwhile, assets outside the top ten by market cap accounted for 9% of the total on September 27, the highest share since February. Glassnode’s Altcoin Cycle Signal metric recently favored altcoins over Bitcoin, using price data from the 250 largest altcoins excluding stablecoins.
The sharp rise in exchange inflows suggests a shift in holder behavior, moving from accumulation or holding toward distribution. When a significant volume of assets migrates to centralized venues, it often precedes increased selling pressure, potentially altering short-term market dynamics. This trend is particularly notable given the concurrent pullback in Bitcoin prices, indicating that altcoin markets may be experiencing independent volatility driven by liquidity changes rather than just broader market sentiment.
Analysts should monitor whether these deposited assets are immediately liquidated or held in order books, as the latter could create resistance levels. The divergence between Bitcoin dominance metrics and altcoin activity highlights a complex market structure where institutional and retail flows may be decoupling. Sustained high deposit counts without corresponding price drops could imply strong underlying demand absorbing supply, whereas rapid outflows would confirm bearish pressure.
