Coinbase International Exchange has stopped recognizing 29 altcoins as eligible collateral for perpetual futures, according to a notice dated September 29, 2026. The assets affected include AERO, ALGO, APT, ARB, ATOM, AVAX, BCH, BNB, BONK, CRV, DOT, FARTCOIN, FIL, ICP, INJ, JASMY, LTC, ONDO, PENGU, OP, PEPE, PUMP, SEI, SHIB, SUI, UNI, VET, XLM and ZORA. The change is limited to Coinbase International Exchange and does not remove the tokens from spot markets or customer ownership.
A token balance may remain in an account while no longer supporting open leveraged positions. Under the exchange's cross-collateral rules, an asset's market value is adjusted through a collateral weight after a haircut. For example, $10,000 of an altcoin that previously counted at an 80% collateral weight would have contributed $8,000 to margin; after the rule change, its contribution becomes zero. Spot holders and self-custody users are not directly affected, while perpetuals traders may need to review available collateral and maintenance-margin buffers.
Separately, US exchange accessibility has shifted for several smaller-cap altcoins. XDC Network trades on Kraken with an XDC/USD pair and about $3.3 million in daily volume, but is not listed on Coinbase as of September 2026. Amitava Mandal, Director of XDC Tech US, Inc., said in a March 2026 statement: 'XDC's expanding exchange footprint now counts Kraken among its ranks, following integrations with Bybit, MEXC, and others.' XDC targets enterprise trade finance and real-world asset tokenization in the $34 trillion global trade market.
BEAM, a gaming-focused blockchain built on an Avalanche subnet, was added to Coinbase's listing roadmap in December 2025 and is now available to US customers on Coinbase and Kraken. Binance lists it as BEAMX. COTI, which is building a privacy-focused Ethereum Layer 2 using garbled circuits cryptography, trades on Coinbase and Kraken in the US, with Coinbase supporting COTI only as an ERC-20 token. XDC has a market capitalization near $730 million, BEAM near $104 million, and COTI near $47 million.
The collateral adjustment comes as exchanges continue to refine token offerings under the SEC's evolving crypto framework and US reporting obligations such as Form 1099-DA. Coinbase emphasized that the change is a risk-management action for a defined derivatives collateral basket and does not establish a price outlook for the affected tokens.
