On September 15, the U.S. stock market witnessed mixed results among cryptocurrency-related stocks. Helius (HSDT) led the gains with a remarkable 181.75% surge, while Kindly MD (NAKA) experienced a significant drop of 57%. Coinbase and Circle saw modest increases of 1.06% and 3.66%, respectively. Conversely, Strategy and Bullish recorded declines of 1.69% and 0.88%. New entrants Gemini and Figure posted gains of 4.62% and 8.62%, respectively, underscoring the sector's volatility and varied investor sentiment.