Following Anthropic's IPO filing, its pre-IPO contract trading volume surged 159% in one hour. Within one hour of Anthropic's IPO filing, its pre-IPO perpetual contract 24-hour trading volume surged 159%, with Binance-related contracts skyrocketing 233% to $35.2 million, data from Kaiko. In the first three weeks of September alone, Anthropic-related contracts across 12 crypto platforms saw a trading volume of $643 million. The real test will come on the listing day. According to the rules, once Anthropic lists, the contracts will gradually switch to tracking the real share price; if the valuation given by the crypto market differs too much from the US stock market opening price, many positions may be liquidated immediately.