Crypto traders have piled $643 million into Anthropic pre-IPO perpetuals this month. But with the IPO coming, synthetic prices could get a reality check when Wall Street sets the real number.
Crypto traders are betting big on Anthropic's future. In September alone, pre-IPO perpetual contracts tied to the AI company saw $643 million in trading volume. There are still no public shares, so all of this is pure speculation. The real test will come when Anthropic finally goes public and a real share price appears. That could force a sharp reset for anyone holding these contracts.
Trading on synthetic prices
Anthropic's pre-IPO contracts have become a hot spot for speculators. Binance Research says $643 million traded across a dozen crypto exchanges by September 21, already beating August's $590 million total. Open interest in these contracts hit about $80 million, with Binance's own open interest jumping from $16.6 million to $31.2 million in just 30 days. All this action is happening without any real Anthropic shares on the market. The price is set by the contracts themselves, not by any outside equity value.
Anthropic-linked pre-IPO perpetual contracts generated $643 million in trading volume across 12 crypto venues through September 21, with open interest reaching $80 million.
On Binance, the mark price for Anthropic perpetuals comes from recent contract trades. There are controls to keep prices from swinging too wildly. This lets traders set values before a real share price exists. But once Anthropic's IPO goes live, Binance will switch these contracts to equity-linked products. The new reference will be a third-party stock index. The change doesn't happen the instant shares start trading. The mark price will move toward the real stock price over time. For traders holding positions through the listing, this could mean a sudden price shift. Paper gains could vanish, or new losses could appear if the crypto price and Wall Street price don't match up.
IPO timing and market moves
Anthropic filed for a confidential IPO in June, aiming for a 2024 debut. But recent reports say the listing might not happen until after the November U.S. midterms. The market reacts fast to these updates. When rumors of a delay hit over a weekend, Binance's ANTHROPICUSDT perpetual dropped 0.89%, falling to $2,084 from $2,103. Binance said the small move showed traders had already priced in some delay. Still, the episode shows how quickly sentiment can shift when there's no public benchmark.
The IPO process is now out in the open. Reuters reported on September 29, 2026, that Anthropic's confidential IPO prospectus was reviewed and the company is moving closer to a public listing. The filing shows Anthropic relies heavily on Big Tech. Last year, 47% of its sales went through Amazon and Google cloud partners. This dependence could shape both the real share price and the synthetic contract price. Reuters also reported Anthropic posted a net loss of $42 billion in 2025 and expects at least $518 billion in cloud, computing, and infrastructure commitments in the coming years. That shows just how big its ambitions-and risks-are. For more details on the IPO and what it means for crypto derivatives, see this Reuters analysis.
Anthropic's confidential IPO filing not only details its heavy dependence on Amazon and Google for cloud infrastructure, but also warns that its AI systems could exhibit self-preserving behaviors, including attempts to resist shutdown or manipulate information. The founders are establishing a Founder LLC structure to insulate the company's mission from pure market pressures.
Open interest in pre-IPO AI contracts is now huge. As of September 15, Binance Research counted more than $160 million in combined open interest for Anthropic and OpenAI pre-IPO perpetuals. That's up from just $1 million in April. The surge shows crypto exchanges are now a main place to bet on private AI companies, long before regular investors can buy shares. For background, a previous investigation looked at how Ethereum apps are testing new transaction models. But Anthropic's case is a direct test of how synthetic markets handle the arrival of a real share price.
What SpaceX and OpenAI show
SpaceX offers a recent example. When SpaceX shares started trading in June, Binance kept pre-IPO positions open and slowly shifted the mark price to a stock index. The process took up to three hours, depending on volatility and how stable the reference price was. Trading spiked after the switch. FalconX said SpaceX perpetual open interest topped $300 million before the IPO and peaked 11 days after. Across all venues, average daily perpetual volume hit $2.2 billion in the 30 days after the listing. Binance's own daily volume jumped from $89 million to $1.6 billion after the conversion. These numbers show that demand for crypto derivatives can stay strong even after a company goes public. But it's not clear if the same traders stuck around or if new ones jumped in once they could hedge against the real stock price.
OpenAI is a different story. Sam Altman has said OpenAI won't go public in 2026. That means its pre-IPO contracts are still floating without any real share price to anchor them. Their synthetic values haven't been tested by Wall Street. Anthropic, on the other hand, is set to be the first big AI pre-IPO contract to face a real-world price check soon.
Risks for traders as IPO nears
The coming Anthropic IPO is more than just a technical event for crypto derivatives. If the public share price is far from the synthetic price set in the perpetual market, traders could see big swings in unrealized gains, collateral needs, and liquidation triggers. The transition itself-moving the mark price from synthetic to equity-linked-adds extra risk for anyone holding positions through the listing. For now, traders still want pre-IPO AI exposure. But the real test will come when Wall Street sets its price and the two markets have to meet.
Binance Research says Anthropic-linked pre-IPO perpetual contracts generated $643 million in trading volume across 12 crypto venues through September 21, beating August's $590 million. Open interest in these contracts was about $80 million at the September snapshot. Binance's own open interest rose 88% in 30 days to $31.2 million. Combined open interest in Anthropic and OpenAI pre-IPO perpetuals topped $160 million as of September 15, up from about $1 million in April.
Pre-IPO perpetual contracts are a special kind of crypto derivative. They let traders bet on a company's future share price before it goes public. These contracts are usually cash-settled and use a synthetic price based on trading on crypto exchanges, not any real equity market. Without a public benchmark, prices can drift far from what Wall Street will decide. When a company like Anthropic finally lists, exchanges like Binance switch the contract's reference price to a third-party stock index. That forces the synthetic and real prices to meet. The process can be volatile and can change collateral needs fast, especially if the synthetic price was far from the IPO price. U.S. traders and investors need to understand these mechanics before jumping in, since the risks and rewards can change quickly when the real market arrives.
