According to Kaiko data, less than an hour after AI company Anthropic publicly filed its US IPO registration document (S-1) on October 26, the trading volume of its pre-IPO perpetual contracts surged by 159% in the past 24 hours. Specifically, the trading volume of Binance-related contracts increased by 233% to $35.2 million in the past 24 hours, with open interest increasing by 6.8%. Anthropic has applied to the US SEC for a Nasdaq listing, intending to use the ticker symbol ANT. [https://www.wublock123.com/news/anthropic-ipo-filing-prelist-perpetuals-volume-spikes-159-70753](https://www.wublock123.com/news/anthropic-ipo-filing-prelist-perpetuals-volume-spikes-159-70753)