Why Is Micron (MU) Stock Price Up 3.92% Today, Sep 18? AI Memory Shortages and Earnings Optimism Drive Shares Past $1,000

Micron rallied ~3.9% as AI-driven DRAM/HBM tightness and higher memory pricing expectations were reinforced by heavy bullish call flow near the $1,000 strike, potentially forcing dealer hedging. The move keeps focus on near-term technical resistance and support while markets position ahead of Sep 30 earnings, where guidance on pricing, supply constraints, and margins could validate or challenge the current semiconductor risk-on tone.