Binance adjusts the share base for the ANTHROPICUSDT pre-market perpetual contract, expected to increase to approximately 13.116 billion shares.

Binance said its pre-IPO ANTHROPICUSDT perpetual contract, currently quoted on an estimated 1 billion shares, will be rebased to about 13.116 billion shares (13,116,075,288) after Anthropic filed an S-1/A-2 on November 10, 2026. The revised count comprises 13,086,672,593 shares outstanding after the offering and concurrent private placement, plus 561,963 Class A and 848,882 Class N shares added through private-company acquisitions after September 30, 2026, and 27,991,850 Class N shares from a matching issuance. Binance will announce the exact timing and mechanics before the IPO listing date, and the contract will be renamed ANTUSDT at adjustment without affecting existing positions, so users need not close or settle. The change matters because it resets the contract's share basis to Anthropic's disclosed capital structure, sharply altering the per-contract exposure implied by the current 1 billion-share estimate. Traders should watch for Binance's notice on the rebasing date and any further S-1 amendments ahead of the IPO.