U.S. stock night trading volatility: Ark Invest's increased holdings couldn't withstand market panic, Circle fell 3% in night trading!

US Stock Night Market Movements Circle fell 3.00% in the night market. Based on recent key news: On February 4th, Ark Invest increased its holdings in Circle stock. Despite the sluggish cryptocurrency market, Ark Invest purchased $2.4 million worth of Circle stock through its ETF, demonstrating continued confidence in cryptocurrency stocks, which drove stock price fluctuations. On February 4th, Bitcoin's price fell below $73,000, exacerbating market panic and leading to an overall decline in the cryptocurrency market, affecting the performance of related stocks like Circle. On February 3rd, Circle issued an additional 750 million USDC on the Solana network, indicating activity in the stablecoin market, which may impact Circle's market positioning. The volatility in the cryptocurrency market has intensified, and investment should be approached with caution. Stocks with High Trading Volume in the Industry Palantir Tech fell 0.06% in the night market. Based on recent news: On February 2nd, Palantir released its Q4 2025 financial report, with revenue of $1.41 billion, a 70% year-over-year increase, exceeding market expectations. Earnings per share were $0.25, higher than the expected $0.23. This news drove the stock price up 7% in after-hours trading. On February 3rd, Palantir provided revenue guidance for the full year 2026, expecting revenue between $7.18 billion and $7.2 billion, far exceeding the market expectation of $6.27 billion. This optimistic outlook further boosted investor confidence. On February 4th, analysts expressed high recognition of Palantir's AI platform, believing its leadership position in the AI field is unmatched. Analysts generally raised their target prices, further driving the stock price up. Strong demand for AI, stable macroeconomic conditions, and significant capital inflows were noted. IREN fell 1.47% in the night market. Based on recent key news: On February 4th, JPMorgan maintained a sell rating on IREN with a target price of $39, implying about a 16% downside risk. This rating led to a significant drop in the stock price of over 15%. Source: Benzinga On February 5th, IREN reached a $970 million cooperation agreement with Microsoft, transforming into an AI infrastructure provider. This move aims to enhance computing power, but the market remains cautious about the success of its transformation. Source: Benzinga On February 4th, a winter storm caused a 6% decline in US network computing power, reducing competition among miners. IREN outperformed Bitcoin in January, with its stock price rising 42%. Source: CoinDesk AI industry transformation is accelerating, and market volatility is intensifying. Strategy fell 3.45% in the night market. Based on recent news, On February 2nd, the price of Bitcoin fell below the average cost of holdings for Strategy, raising market doubts about its financial strategy. The price of Bitcoin dropped below $76,037, and Strategy's stock price fell over 7% in after-hours trading to $138.26. Source: Zhitong Finance On February 2nd, Strategy's Executive Chairman Michael Saylor issued a buy signal on social media, suggesting a possible increase in Bitcoin holdings. This move alleviated market panic after the Bitcoin price fell below the cost price. Source: Jinse Finance On February 2nd, Strategy disclosed that it had increased its holdings by 855 Bitcoins last week, with an average purchase price above the market price, resulting in unrealized losses for the company. This raised concerns about its capital raising ability. Source: Jinse Finance The cryptocurrency market is sluggish, with significant capital outflows