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Stock Market News 19 December 2025

MercadoLibre Stock (MELI) Rallies After Moody’s Investment-Grade Upgrade: What to Know Before Markets Open Dec. 19, 2025

MercadoLibre Stock (MELI) Rallies After Moody’s Investment-Grade Upgrade: What to Know Before Markets Open Dec. 19, 2025

Moody’s upgraded MercadoLibre to investment grade on Thursday, assigning a Baa3 rating and citing stronger credit metrics and growth. MELI shares closed up 2.51% at $1,964.46, snapping a three-day losing streak, and held near $1,966 in after-hours trading. Volume reached about 686,000 shares. The upgrade affects both issuer and senior unsecured notes, with a stable outlook.
19 December 2025
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Lumentum (LITE) Stock After Hours on Dec. 18, 2025: What Investors Should Watch Before Friday’s Market Open

Lumentum (LITE) Stock After Hours on Dec. 18, 2025: What Investors Should Watch Before Friday’s Market Open

Lumentum Holdings Inc. (NASDAQ: LITE) finished Thursday’s session (18.12.2025) with a strong gain and then added a modest move in after-hours trading—keeping the spotlight on optical and photonics names tied to the AI data-center buildout. LITE closed the regular session at $337.13, up 5.27%, and traded around $339.95 in after-hours (up 0.84%) as of the evening update. Yahoo Finance For investors heading into Friday’s open (Dec. 19, 2025), the bigger question is whether Thursday’s rebound was the start of another leg higher—or simply the latest swing in what has become a high-volatility momentum trade. Lumentum stock price recap: what happened
19 December 2025
Progressive (PGR) Stock After Hours: Analyst Downgrade, Price-Target Moves, and What to Watch Before Friday’s Open (Dec. 19, 2025)

Progressive (PGR) Stock After Hours: Analyst Downgrade, Price-Target Moves, and What to Watch Before Friday’s Open (Dec. 19, 2025)

Progressive (NYSE: PGR) ended Thursday, December 18, 2025, lower—then stayed mostly quiet after the closing bell as investors digested a fresh analyst downgrade and mixed price-target changes that landed throughout the day. PGR stock price after the bell on Dec. 18 Progressive shares closed at $224.86, down 1.06%, marking a third straight session of declines even as the broader market rose (S&P 500 +0.79%, Dow +0.14%). MarketWatch In extended trading, quotes indicated only a small move: MarketBeat showed $224.59 (-0.12%) as of 6:25 p.m. Eastern, and MarketWatch showed $224.61 (-0.11%) at 5:53 p.m. Eastern (delayed quote). MarketBeat+1 Why it matters:
19 December 2025
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Rocket Lab (RKLB) Stock After Hours Today: Space Force STP-S30 Launch Sparks a Late Bid — What to Know Before the Market Opens Dec. 19, 2025

Rocket Lab (RKLB) Stock After Hours Today: Space Force STP-S30 Launch Sparks a Late Bid — What to Know Before the Market Opens Dec. 19, 2025

Rocket Lab shares jumped 11.05% to $59.92 Thursday after the company launched the STP‑S30 mission for the U.S. Space Force five months ahead of schedule. The Electron rocket lifted off from Wallops Island at 12:03 a.m. ET, deploying four DiskSat spacecraft. After-hours trading pushed the stock near $60.74. The mission had originally been planned for spring 2026.
19 December 2025
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Thermo Fisher Scientific Stock (TMO) After Hours: Key News, Analyst Forecasts, and What to Watch Before the Market Opens on Dec. 19, 2025

Thermo Fisher Scientific Stock (TMO) After Hours: Key News, Analyst Forecasts, and What to Watch Before the Market Opens on Dec. 19, 2025

Thermo Fisher Scientific (TMO) closed at $562.39 on December 18, down 0.03%, despite a broad market rally. Shares traded between $554.53 and $569.41 during the session, with about 2.24 million shares changing hands. After hours, the stock remained steady near $562.40. The company announced enrollment of the first patient in its new Alzheimer’s Disease Registry.
19 December 2025
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RRP Semiconductor’s 55,000% Stock Surge Triggers SEBI Scrutiny: Inside India’s Most Puzzling “Chip” Rally

RRP Semiconductor’s 55,000% Stock Surge Triggers SEBI Scrutiny: Inside India’s Most Puzzling “Chip” Rally

RRP Semiconductor shares surged over 55,000% in 20 months, rising from ₹15–₹20 to about ₹11,095 by December 2025, pushing its market value near ₹15,000 crore. SEBI has begun investigating the rally, while the BSE tightened trading rules. The company reported recent losses, negative revenue, and no active semiconductor manufacturing. Valuations reached extremes, with a negative P/E near -6,097 and a market-cap-to-sales ratio around 1,080.
19 December 2025
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Nebius Group NBIS Stock After Hours Dec 18 2025: Why Shares Rebounded, Latest News, Analyst Targets, and What to Watch Before Friday’s Open

Nebius Group NBIS Stock After Hours Dec 18 2025: Why Shares Rebounded, Latest News, Analyst Targets, and What to Watch Before Friday’s Open

Nebius Group N.V. (NBIS) closed Thursday up 3.5% at $78.09, with after-hours trading lifting shares to $79.26 by 6:18 p.m. EST. Volume neared 10 million shares amid volatile intraday swings. The rebound followed improved AI infrastructure sentiment after Micron’s results, easing inflation data, and renewed debate over neocloud debt funding.
19 December 2025
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Reddit RDDT Stock After Hours on Dec. 18, 2025: The Late-Day Whipsaw, Insider Sale Filing, and What to Watch Before Friday’s Open

Reddit RDDT Stock After Hours on Dec. 18, 2025: The Late-Day Whipsaw, Insider Sale Filing, and What to Watch Before Friday’s Open

Reddit Inc. shares capped a volatile Thursday with a modest gain into the close — then held slightly higher in after-hours trading as investors digested a mix of analyst commentary, macro tailwinds, and a fresh insider trading disclosure. RDDT ended regular trading on Thursday, December 18, 2025, around $231.34 and traded around $232.15 after hours as of 7:59 p.m. ET, according to StockAnalysis. StockAnalysis+1 Below is what mattered after the bell on Dec. 18 — and what to keep on your radar ahead of the U.S. market open on Friday, December 19, 2025. Reddit stock price action after the bell
19 December 2025
Merck (MRK) Stock After Hours: Key News, Analyst Calls, and What to Watch Before the Dec. 19, 2025 Market Open

Merck (MRK) Stock After Hours: Key News, Analyst Calls, and What to Watch Before the Dec. 19, 2025 Market Open

Merck shares closed up 1.52% at $100.69 on Thursday, with after-hours trading showing little change. The move followed a BMO Capital Markets upgrade to Outperform and a price target hike to $130, citing confidence in Merck’s post-Keytruda growth prospects. Trading volume topped 14.2 million shares, above the 50-day average. Merck outperformed Johnson & Johnson and Pfizer on the day.
19 December 2025
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Japan Tech Stocks Plunge as AI Infrastructure Spending Fears Hit SoftBank, Nikkei 225 and Asia’s Chip Leaders

Japan Tech Stocks Plunge as AI Infrastructure Spending Fears Hit SoftBank, Nikkei 225 and Asia’s Chip Leaders

Japan’s Nikkei 225 fell 1.03% to 49,001.5 on Thursday, its lowest close in three weeks, as tech stocks slid amid renewed doubts over AI data center profitability. SoftBank Group dropped 3.76%, while Advantest and Fujikura also declined. The selloff followed similar losses in U.S. tech shares. Some defensive and niche stocks outperformed, including Shift, which jumped 5.09%.
19 December 2025
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Disney Stock After Hours Today (Dec. 18, 2025): DIS Holds Gains as Wells Fargo Turns Bullish — What to Know Before Friday’s Open

Disney Stock After Hours Today (Dec. 18, 2025): DIS Holds Gains as Wells Fargo Turns Bullish — What to Know Before Friday’s Open

NEW YORK — Dec. 18, 2025. The Walt Disney Company (NYSE: DIS) closed higher on Thursday and was largely steady in after-hours trading, as investors weighed a fresh wave of upbeat analyst commentary against a still-evolving macro backdrop shaped by unusual inflation data and post-shutdown schedule disruptions. Below is a detailed look at Disney stock after the bell on Dec. 18, 2025—and the key factors to watch before the U.S. stock market opens Friday, Dec. 19, 2025. Disney stock price after the bell: where DIS stands heading into Friday Disney shares finished Thursday’s regular session at $111.87, up about 1.12%
19 December 2025
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Marvell Technology (MRVL) Stock After Hours on Dec. 18, 2025: Why Shares Pulled Back Slightly After a Chip Rally — What to Know Before the Market Opens Dec. 19

Marvell Technology (MRVL) Stock After Hours on Dec. 18, 2025: Why Shares Pulled Back Slightly After a Chip Rally — What to Know Before the Market Opens Dec. 19

Marvell Technology shares closed up 3.39% at $84.47 on Dec. 18, 2025, as semiconductor and AI-linked stocks rallied following Micron’s strong results. The stock slipped 0.43% to $84.11 in after-hours trading with about 351,000 shares changing hands. No company-specific news drove the move; traders cited sector momentum and macro factors.
19 December 2025
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Shopify (SHOP) Stock Rallies After Analyst Price-Target Upgrades and Softer CPI — What to Know Before the Market Opens Friday (Dec. 19, 2025)

Shopify (SHOP) Stock Rallies After Analyst Price-Target Upgrades and Softer CPI — What to Know Before the Market Opens Friday (Dec. 19, 2025)

Shopify closed Thursday at $166.80, up 3.14%, after multiple Wall Street firms raised price targets and a softer U.S. inflation report lifted tech stocks. Shares traded between $165.30 and $172.96 on volume of 7.83 million. After-hours trading was flat, with the stock at $166.79 at 4:30 p.m. ET. No major company news emerged after the close.
19 December 2025
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Procter & Gamble (PG) Stock After Hours: PG Edges Higher After a 1.55% Drop—What to Know Before the Dec. 19, 2025 Market Open

Procter & Gamble (PG) Stock After Hours: PG Edges Higher After a 1.55% Drop—What to Know Before the Dec. 19, 2025 Market Open

Procter & Gamble Company (The) (NYSE: PG) finished Thursday, December 18, 2025, on the back foot—even as the broader market posted solid gains—then nudged slightly higher in after-hours trading as investors digested a fresh round of analyst commentary and a volatile macro backdrop. Below is a complete after-the-bell snapshot of PG stock, the biggest news and forecasts published today, and the key items to watch before Friday’s (Dec. 19) opening bell. PG stock after the bell on Dec. 18: The numbers that matter Regular-session close (Thu., Dec. 18): PG closed at $145.52, down 1.55% on the day. MarketWatch After-hours (as
19 December 2025
Qualcomm (QCOM) Stock After Hours on Dec. 18, 2025: Alphawave Semi Deal Closes, Insider Filing Drops, and What to Watch Before Friday’s Open

Qualcomm (QCOM) Stock After Hours on Dec. 18, 2025: Alphawave Semi Deal Closes, Insider Filing Drops, and What to Watch Before Friday’s Open

Qualcomm completed its acquisition of Alphawave Semi ahead of schedule, installing Alphawave CEO Tony Pialis to lead its data center business. Alphawave shareholders received $2.48 per share in cash, with trading suspended on the London Stock Exchange Thursday and delisting set for Friday. Qualcomm shares closed up 1.07% at $174.19, trailing gains by Nvidia and Broadcom.
19 December 2025
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Intuit (INTU) Stock After Hours Today (Dec. 18, 2025): USDC Stablecoin Deal, TurboTax Push, and What to Watch Before Friday’s Market Open

Intuit (INTU) Stock After Hours Today (Dec. 18, 2025): USDC Stablecoin Deal, TurboTax Push, and What to Watch Before Friday’s Market Open

Intuit shares closed at $668.88 Thursday, up 1.23%, then slipped to $668.30 after hours. The company announced a partnership with Circle to add USDC stablecoin features to TurboTax, QuickBooks, and Credit Karma, and launched a new tax campaign for 2025 filings. Shares remain about 17.8% below their 52-week high set in July.
19 December 2025
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Boeing Stock After Hours Today (BA) — Dec. 18, 2025: Key News, Fresh Forecasts, and What to Watch Before Friday’s Open

Boeing Stock After Hours Today (BA) — Dec. 18, 2025: Key News, Fresh Forecasts, and What to Watch Before Friday’s Open

Boeing shares closed Thursday at $208.27, up 0.94%, and held steady after hours. Contract talks with SPEEA covering 1,600 Wichita workers were paused until Jan. 5, drawing union criticism. Boeing and Anduril announced a partnership for a U.S. Army interceptor bid. Investors await Friday’s open amid headline risk and options volatility.
19 December 2025
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Stock Market Today

Tower Semiconductor stock jumps again on Nvidia optics tie-up as earnings near

Tower Semiconductor stock jumps again on Nvidia optics tie-up as earnings near

8 February 2026
Tower Semiconductor shares rose 7.7% to $139.04 Friday after announcing a collaboration with Nvidia on AI data-center networking. The stock touched $141 intraday and gained another 1% after hours. Investors await Tower’s Feb. 11 earnings for details on its silicon photonics work. No financial terms or shipment timeline were disclosed.
Longsys Electronics stock heads into Monday after new guarantees; what 301308 investors watch next

Longsys Electronics stock heads into Monday after new guarantees; what 301308 investors watch next

8 February 2026
Longsys disclosed new guarantees for a 100 million yuan Hong Kong loan and a $9 million Brazil credit line, bringing its total approved guarantee quota to 11 billion yuan and outstanding guarantees to 5.81 billion yuan. The company said all guarantees are for consolidated subsidiaries and within approved limits. Shares closed at 288 yuan Friday, down 1.6%. China inflation and credit data are due this week.
MACOM stock price steadies near highs into Monday after earnings pop and fresh filings

MACOM stock price steadies near highs into Monday after earnings pop and fresh filings

8 February 2026
MACOM shares rose 3.5% to $235.87 Friday after the company reported fiscal Q1 revenue of $271.6 million and raised its full-year data center growth outlook to 35–40%. Fidelity’s FMR LLC disclosed a 10.7% stake, while shareholder Susan Ocampo filed to potentially sell up to 100,000 shares. Stifel raised its price target to $255. MACOM expects to repay $161 million in convertible notes in March.
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