Ethena bets the dollar on equity perp funding
The $4.1 billion synthetic dollar is becoming a stock-market carry trade.
Ethena said Friday it will add equity-perpetual basis trades to the collateral strategy behind USDe, the $4.1 billion tokenized dollar, turning the synthetic dollar into a stock-market carry trade. The plan is an addition to the backing strategy rather than a disclosed portfolio shift, and Etherscan listed USDe's circulating supply at roughly 4.063 billion tokens when checked; Ethena did not name partner exchanges, show a current equity allocation, or specify contract sizes and risk parameters.
The mechanics are documented even if the rollout is not. Ethena's documentation says volatile assets, including tokenized equities, are generally paired with short futures positions of roughly the same notional, so moves in the spot asset are generally offset by the hedge; the announcement did not say whether the equity exposure will come through tokenized equities, another form of spot exposure, or a different construction. The trade is a basis trade in the cleanest sense—collect funding on the perpetual while hedging the underlying price move.
The attraction is the funding, and the numbers Ethena cited carry the argument: equity perpetuals now hold more than $6 billion in open interest across 200 contracts and have paid average funding rates of 15% to 20%. Ethena projected real-world-asset perpetuals will exceed crypto allocations in USDe's backing within 12 to 24 months, but next to a $4.1 billion pool the visible depth is thin—Binance's TSLAUSDT perpetual shows about $41 million of open interest, and Hyperliquid's ORCL-USDC about $16.1 million.
The move extends an arc this page has traced: tokenized assets are becoming the collateral and settlement layer for markets, and yield-bearing products are crowding out zero-yield stablecoin collateral. It also lands while Washington debates tokenized-equity registration, and Robinhood's chief executive has pressed the SEC to open the US to tokenized stocks, a fight that now has a digital-dollar counterpart at the same scale. The stablecoin wrapper question is being settled in the redemption test, and Ethena's plan extends that question into derivatives.
Institutional users should hold the numbers next to the structure: a 15% to 20% historical average funding rate is a carry on equity-derivative positioning rather than a money-market yield, and the funding stream can compress or invert as positioning shifts. A synthetic dollar that earns its keep from equity-perp funding is a different instrument from one that earns treasury bills, and Ethena's two-year projection suggests it is comfortable with that trade-off. The users of that rail are the ones who need to decide, and the first exchange announcements and deployments are promised over the course of the next few weeks.