Ten tokens held 62% of altcoin futures exposure, but shared collateral can put other positions at risk

Ten tokens accounted for 62% of outstanding altcoin futures exposure, known as open interest, in Talos’s weekly market report covering September 24–30, 2026. That concentrated exposure came with different financing burdens: the report put $SOL funding below zero while $PUMP funding reached +21.8% annualized.

Published October 1, the market report also put altcoin open interest relative to market capitalization at 5.6%, a record in Talos’s series. For investors entering the October trading week, those numbers identify a concentrated derivatives footprint, while later Binance settlements show how quickly the cost of holding a particular contract can change.