According to Cointelegraph, crypto mining stocks have experienced a downturn for the second consecutive day as major technology stocks in the United States showed signs of recovery. This shift follows market disruptions caused by an artificial intelligence model from China's DeepSeek, which raised concerns about the potential overvaluation of the country's AI sector.Riot Platforms (RIOT), a prominent crypto mining firm, saw its stock close down by 4.37% on January 28. Similarly, Cleanspark (CLSK) experienced a decline of 2.47%, and MARA Holdings (MARA) dipped slightly by 0.14%, as reported by Google Finance. Meanwhile, Nvidia (NVDA), a leading chipmaker, recorded the most significant rebound among the top U.S. tech stocks, closing the day with an increase of over 8.8% after a previous drop of 17% on January 27.The ongoing decline in crypto miner stocks is attributed to many miners reallocating their computing resources to support AI model operations, as Bitcoin (BTC) mining becomes increasingly challenging and competitive. Despite Nvidia's stock price surge of 8.82% during the trading day, it experienced a slight dip of 0.95% in after-hours trading.