Direxion Daily MU Bull 2X Shares (MUU) surged 7.78% during pre-market trading on Tuesday, reflecting amplified positive sentiment toward its underlying asset, Micron Technology.

The rally is driven by an optimistic industry outlook indicating that the global AI computing race is creating a multi-year supply shortage for critical memory chips like HBM, DRAM, and NAND. Micron Technology's management has warned that supply constraints are expected to extend well beyond 2026 due to robust AI application demand and structural limitations on rapid capacity expansion.

Further fueling the movement, Micron's CEO recently highlighted that the company can currently satisfy only 50% to two-thirds of core customer demand, with meaningful new capacity not expected until 2028. Analyst reinforcement from firms like JPMorgan, citing confidence in a multi-year bull market for AI memory, and HSBC raising its Micron target price, has bolstered bullish sentiment across the sector.