Premarket movers: Mag 7 stocks are mixed: Apple (AAPL) -4%, Microsoft (MSFT) -0.6%, Tesla (TSLA) -0.09%, Amazon (AMZN) +0.2%, Meta Platforms (META) +0.3%, Alphabet (GOOGL) +0.4%, Nvidia (NVDA) +1.5% Apple (AAPL) drops about 4% after delivering a mixed outlook to investors in its first quarterly report under Chief Executive Officer John Ternus, with tightening profit margins overshadowing an upbeat sales forecast. Aehr Test Systems (AEHR) jumps 13% after the semiconductor testing equipment maker raised its full-year revenue outlook to the top end of its previous guidance range, above the Wall Street consensus. Bloom Energy (BE) gains 6% after California Resources Corp. announced the signing of a memorandum of understanding with the fuel cell company to advance decarbonized power across California. Clorox (CLX) rises 2% after reporting adjusted earnings and revenue that topped estimates for its fiscal first quarter. CVR Energy (CVI), a refiner controlled by billionaire investor Carl Icahn, about 1% after agreeing to buy two oil-processing plants and a marketing platform from Marathon Petroleum for about $4.2 billion. Dynatrace (DT) sinks 12% after the software company gave an adjusted profit forecast for the third quarter that fell short of the average analyst estimate. Ethos Technologies (LIFE) gains 10% after the insurance platform said third quarter revenue grew 151% from the year-ago period. Harmonic (HLIT) gains 16% after the communications equipment company reported third-quarter results that beat expectations and gave an outlook that is well above the analyst consensus. Lattice Semiconductor (LSCC) gains 10% after providing a better-than-expected forecast for 4Q revenue, lifting shares by 9.0%. ON Semiconductor (ON) rises 2% after the chipmaker’s fourth-quarter sales forecast largely beat expectations and it agreed to acquire Ferric for $600 million in cash. Palantir (PLTR) falls 7% after issuing a quarterly outlook that pointed to a potential slowdown in sales growth, with revenue expected to be roughly $2.65 billion in the three months ended Dec. 31. Revvity (RVTY) jumps 7% after the life sciences company boosted its outlook for organic revenue growth and adjusted profit for the full year, following third-quarter results that were better than expectations. Shopify (SHOP) slumps 16% after the e-commerce firm reported subscription revenue for the third quarter that fell short of the average analyst estimate.(Historical earnings: For fiscal 2026 full year (period ended 2026-09-03), Micron reported basic EPS of 75.38, diluted EPS of 74.33, net income of USD 84.969 billion, and revenue of USD 133.188 billion. Consensus expectations: For the upcoming 2026Q4 event, consensus expects EPS of 32.5625; no revenue estimate is available.)