Ten tokens hold 62% of altcoin futures open interest

Talos Markets published a weekly report on Oct. 1 covering Sept. 24–30, 2026 and reported that ten tokens accounted for 62% of outstanding altcoin futures open interest. The report put altcoin open interest at 5.6% of the covered tokens’ market capitalization, the highest value in Talos’ series. Talos named Solana, XRP, HYPE and Zcash among the largest contributors to the top-ten concentration and reported a PUMP annualized funding figure of +21.8% while placing SOL funding below zero for the Sept. 24–30 window. The report did not specify the precise averaging window or the capitalization convention used for the 5.6% figure.

Perpetual futures use periodic funding payments to keep contract prices aligned with spot markets. When funding is positive, long holders pay short holders; when funding is negative, shorts pay longs. Funding charges vary by contract, by the trader’s side and by the settlement interval.

Exchange settlement records retrieved on Oct. 5 illustrate how funding rates can change in hours. Binance settled payments show SOLUSDT at 00:00 UTC with a native funding payment of +0.010000% (longs pay shorts) and an earlier SOL payment at 16:00 UTC on Oct. 4 with the same native rate. PUMPUSDT registered -0.001748% at 00:00 UTC and +0.001227% at 04:00 UTC, reversing sign within four hours. Those native periodic rates are not annualized; converting them to annual figures depends on the period definition and scaling method used by the data provider.

Open interest records represent unresolved contractual exposure with one side counted. Exchanges also publish dollar-value fields for open interest. At about 04:20 UTC on Oct. 5, Binance reported roughly $1.045 billion of open-interest value in SOLUSDT and roughly $142.876 million in PUMPUSDT. Dollar values move with price and quantity changes and require matching timestamps and asset sets to compare with market capitalization.

Margining structure affects how losses spread across positions. Cross margin shares collateral across eligible positions, while isolated margin confines collateral to a single position. With cross margin, losses on a large contract can reduce the equity supporting other trades in the same account. Exchange liquidation rules typically attempt to close positions through the order book when account equity falls below maintenance requirements and include specified backstops. Funding payments and losses on cross-margined holdings can alter an account’s liquidation distance.

A full assessment of derivatives crowding requires matched comparisons of exposure and token value using the same assets and timestamps, a sequence of settled funding payments and details on account collateral and available liquidity. The Talos concentration statistic describes exposure inside its tracked altcoin bucket for the Sept. 24–30 window. Binance’s Oct. 5 settlements show funding burdens on individual contracts can change over hours.