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Stock Market 13 January 2026

Micron Technology stock drops after hours as SK Hynix launches $13B AI-memory buildout

Micron Technology stock drops after hours as SK Hynix launches $13B AI-memory buildout

Micron Technology shares fell 2.2% in after-hours trading Tuesday after SK Hynix announced a $12.9 billion investment in a new chip-packaging plant in South Korea. Construction will begin in April and finish by late 2027. SK Hynix controlled 61% of last year’s high-bandwidth memory market, compared to Micron’s 20%. Analysts raised price targets but warned of limited clean room space and possible future oversupply.
13 January 2026
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Meta Platforms (META) stock slides as Reality Labs cuts loom and Zuckerberg rolls out “Meta Compute”

Meta Platforms (META) stock slides as Reality Labs cuts loom and Zuckerberg rolls out “Meta Compute”

Meta shares fell 1.8% Tuesday to $630.70 after reports the company will cut about 10% of staff in its Reality Labs division. CEO Mark Zuckerberg unveiled “Meta Compute,” a new initiative to expand AI infrastructure, with plans for major data center and power investments. Layoffs are expected to hit virtual reality teams hardest. Meta has spent over $60 billion on Reality Labs since 2020.
13 January 2026
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Super Micro Computer stock slides after Goldman Sachs starts SMCI at Sell, flags margin squeeze

Super Micro Computer stock slides after Goldman Sachs starts SMCI at Sell, flags margin squeeze

Shares of Super Micro Computer fell about 5% in after-hours trading Tuesday after Goldman Sachs initiated coverage with a “sell” rating and a $26 price target. The stock hit its lowest level since April, closing at $28.61. Goldman cited margin pressure and limited profitability visibility despite AI-driven growth. The company’s next earnings date is expected in February but remains unconfirmed.
13 January 2026
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Visa stock slides nearly 5% as Trump’s credit-card rate cap plan hits payment networks

Visa stock slides nearly 5% as Trump’s credit-card rate cap plan hits payment networks

Visa shares fell 4.5% to $327.90 Tuesday after President Donald Trump proposed a one-year 10% cap on credit-card interest rates. Mastercard dropped 3.8%. The move sparked concerns about new regulation and its impact on the payments sector ahead of Visa’s shareholder meeting and earnings report later this month. Average U.S. credit card rates stood at 20.97% in November, according to Federal Reserve data.
13 January 2026
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KNSA stock slides 6% after Kiniksa maps out $900–$920 million ARCALYST outlook — what’s next

KNSA stock slides 6% after Kiniksa maps out $900–$920 million ARCALYST outlook — what’s next

Kiniksa shares fell 6.1% to $38.61 Tuesday after the company projected 2026 ARCALYST revenue of $900–$920 million, below the prior year’s growth rate. The drop followed an intraday low of $38.27. Wedbush raised its price target to $50, citing increased prescriber numbers and longer therapy use. Kiniksa reported $677.5 million in 2025 ARCALYST revenue and ended the year with $414.1 million in cash.
13 January 2026
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Harmony Biosciences stock drops after ZYN002 exit as 2026 Wakix sales outlook tops $1 billion

Harmony Biosciences stock drops after ZYN002 exit as 2026 Wakix sales outlook tops $1 billion

Harmony Biosciences shares fell 6.4% to $35.82 Tuesday after the company cut its Fragile X program and issued 2026 sales guidance. Harmony forecast Wakix net revenue of $1.0–$1.04 billion for 2026 and confirmed it will phase out ZYN002. Preliminary Wakix revenue for 2025 was about $868 million. CEO Jeffrey Dayno is set to present at the J.P. Morgan Healthcare Conference later Tuesday.
13 January 2026
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Nvidia stock stays flat after China tightens H200 chip approvals; Eli Lilly $1B AI lab grabs attention

Nvidia stock stays flat after China tightens H200 chip approvals; Eli Lilly $1B AI lab grabs attention

Nvidia shares slipped 0.04% to $184.87 after hours Tuesday following reports China is restricting approvals for H200 AI chip purchases. Nvidia denied requiring upfront payment from Chinese buyers. The company also announced a $1 billion healthcare AI lab with Eli Lilly and new partnerships, but traders remain focused on China’s impact on chip demand.
13 January 2026
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Apple stock slips after-hours as Creator Studio launch and Google Gemini tie-up reset the AI pitch

Apple stock slips after-hours as Creator Studio launch and Google Gemini tie-up reset the AI pitch

Apple shares slipped 0.25% to $259.61 after hours Tuesday following the announcement of “Apple Creator Studio,” a $12.99/month creative software bundle launching Jan. 28. The rollout comes as investors weigh Apple’s new AI partnership with Google’s Gemini and await the company’s earnings report on Jan. 29.
13 January 2026
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Tesla stock slips after SEC filing on top exec pay; Wall Street parses inflation

Tesla stock slips after SEC filing on top exec pay; Wall Street parses inflation

Tesla shares fell 0.4% to $447.31 Tuesday after a filing showed senior executive Tom Zhu received a large options grant priced at $435.80. Wolfe Research flagged rising costs and demand risks, projecting 2026 EPS below consensus. Investors await Tesla’s Jan. 28 earnings for updates on margins and software progress. The S&P 500 and Nasdaq also slipped 0.4% after the latest U.S. inflation data.
13 January 2026
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Oklo stock slides in late trade as Meta nuclear deal meets insider selling and long timelines

Oklo stock slides in late trade as Meta nuclear deal meets insider selling and long timelines

Oklo shares fell 3.3% to $99.10 in late trading Tuesday after hitting an intraday high of $107.55. The drop followed news of CEO Jacob DeWitte’s insider share sales and updates on Meta-backed nuclear projects in Ohio. Oklo’s agreement with Meta targets a 1.2 GW power campus, with pre-construction work set for 2026. Broader nuclear stocks were mostly flat.
13 January 2026
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Asana stock drops 7% today as software names slide after CPI — what to watch next

Asana stock drops 7% today as software names slide after CPI — what to watch next

Asana shares fell 7.1% to $12.04 Tuesday afternoon, underperforming major indexes after U.S. inflation data showed a 2.7% annual rise in December. The drop mirrored declines in other cloud software stocks. Company news was limited, though Asana launched a new automation feature late Monday. Investors are watching the Fed’s Jan. 27-28 meeting and Asana’s fiscal year-end on Jan. 31.
13 January 2026
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Stock Market Today

  • Riot Platforms (RIOT) Valuation Under Review After Share Price Slump
    March 21, 2026, 10:58 AM EDT. Riot Platforms (RIOT) shares fell 5.4% in one day, extending a 13.6% drop over 30 days amid mounting concerns over its financial performance. Despite a US$647.4 million revenue haul, Riot posted a US$663.2 million net loss, raising questions about its near-term profitability and exposure to Bitcoin price volatility. However, the firm's 68.3% one-year total shareholder return underscores strong longer-term gains. Analysts estimate Riot is undervalued at a fair price of US$25.94 versus its last close of US$13.38, citing growth prospects from its expansion in scalable data centers targeting AI and cloud computing sectors. Investors must balance these opportunities against risks of underutilized capacity and crypto market swings. The mixed outlook highlights a wider debate on Riot's positioning in the volatile cryptocurrency infrastructure space.
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