Key TakeawaysSandisk shares rallied 18% on Thursday following competitor Micron’s exceptional Q3 performance, which delivered $25.11 EPS versus the anticipated $20.78 and generated $41.5B in total revenue.With Sandisk’s earnings announcement scheduled for Aug. 24, market analysts project EPS will surge to $33.72, representing more than a sequential doubling.Year-to-date, Sandisk has climbed 853%, while the 12-month performance shows an extraordinary 4,670% gain.Technical indicators show the stock’s 14-month RSI reached 99.1, signaling extreme overbought conditions according to traditional metrics.Current trading levels show Sandisk positioned 246% above its 200-day moving average and 51% beyond its 50-day moving average.Sandisk (SNDK) shares experienced an 18% surge on Thursday, reaching $2,263.57, propelled by memory sector competitor Micron (MU) delivering exceptional fiscal Q3 results that triggered widespread gains across both companies.Sandisk Corporation, SNDKMicron reported adjusted earnings of $25.11 per share, significantly exceeding Wall Street’s consensus forecast of $20.78. The company’s quarterly revenue reached $41.5 billion, approximately quadrupling compared to the same period last year and surpassing analyst projections of $35.8 billion.While Sandisk’s earnings release isn’t scheduled until Aug. 24, the impressive Micron results provided market participants with valuable insight into current memory sector dynamics.Wall Street analysts have already positioned for strong results from Sandisk’s forthcoming announcement. Consensus estimates project earnings of $33.72 per share, representing more than twice the company’s previous quarterly results.Micron’s GAAP earnings increased 104% quarter-over-quarter in its most recent period. Market participants appear to be positioning for Sandisk to deliver comparable performance, especially considering two additional months of favorable memory pricing conditions.AI-Driven Demand Creates Persistent Supply ConstraintsDuring Micron’s earnings conference call, CEO Sanjay Mehrotra emphasized that artificial intelligence-related demand continues at elevated levels, with the company deploying capital at unprecedented rates to expand capacity. Despite these investments, he indicated that supply constraints will persist for the foreseeable future.This ongoing supply-demand mismatch has been a primary catalyst for Sandisk’s extraordinary performance trajectory. The company’s shares have appreciated 853% during the current calendar year and have posted a remarkable 4,670% advance over the trailing 12 months, powered by AI infrastructure investment and constrained memory availability.Both companies are securing extended-term supply agreements with clients at premium pricing levels. Micron disclosed that certain products are generating operating margins exceeding 80%. Sandisk has adopted a comparable commercial approach, potentially insulating its profitability profile even if market conditions moderate.Evaluating Valuation ExtremesThe stock’s meteoric rise has attracted scrutiny from market technicians monitoring momentum indicators. Prediction markets platform Polymarket recently characterized Sandisk as “officially the most overbought stock in history,” citing its technical positioning.The quantitative data supports some degree of valuation concern. Sandisk’s 14-month RSI registered 99.1 as of Wednesday, based on Dow Jones Market Data. Traditional technical analysis considers readings above 70 as indicating overbought conditions. For perspective, the company’s record 14-day RSI of 95.32 was established in September 2025.On a more compressed timeframe, the 14-day RSI measured 55.8 at Wednesday’s closing bell, which falls within neutral territory. However, the extended-term momentum indicators present a more challenging picture.Sandisk currently trades 246% above its 200-day moving average of approximately $652, and sits 51% above its 50-day moving average of $1,489.The company has maintained public market status for roughly 16 months following its separation from Western Digital. During this period, shares have advanced from a $40 trough to a peak of $2,354.39.Sandisk’s current market capitalization stands at $284 billion.The post Sandisk (SNDK) Stock Soars 18% Following Micron’s Stellar Quarterly Performance appeared first on Blockonomi.