Micron Technology (MU) has become the most actively traded U.S. stock, with daily transaction value exceeding $70 billion for the first time. Since the start of 2026, the share has risen more than 1,100 % and outpaced Nvidia (NVDA) and Tesla (TSLA), which were the market’s busiest stocks in 2025. Neither Nvidia nor Tesla have recorded daily volumes above $70 billion in the past year. Micron’s shares have climbed 268 % year‑to‑date, contributing 7.5 % to the S&P 500’s gain, and the company is now a central focus of AI‑related trading.