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Nasdaq-100 16 December 2025 - 9 June 2026

SpaceX faces fast Nasdaq-100 jump, putting QQQ investors on alert as chip trade slumps

SpaceX faces fast Nasdaq-100 jump, putting QQQ investors on alert as chip trade slumps

SpaceX’s IPO is expected to make the Elon Musk firm a quick entry into index funds. Rule changes could add the stock to the Nasdaq-100 not long after trading begins. This could impact investors in the Invesco QQQ Trust, since it tracks the Nasdaq-100 and might offer quicker access to SpaceX if the company goes public. Reuters said MSCI will use early-inclusion rules for big IPOs, and Nasdaq has loosened its own rules, which could let new giants join the Nasdaq-100 sooner.
9 June 2026
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AstraZeneca stock in focus: What to watch after Friday’s close as Nasdaq-100 exit nears

AstraZeneca stock in focus: What to watch after Friday’s close as Nasdaq-100 exit nears

London, Jan 18, 2026, 19:15 GMT — Markets have closed for the day. AstraZeneca shares ticked higher on Friday after the drugmaker highlighted several key drivers for its fourth-quarter performance ahead of the full-year results. The London-listed shares finished at 14,052 pence, gaining 0.2%, while U.S.-listed American Depositary Shares rose 0.4% to close at $94.39.
18 January 2026
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Walmart stock: Nasdaq-100 entry on Jan. 20 puts index-fund flows in focus

Walmart stock: Nasdaq-100 entry on Jan. 20 puts index-fund flows in focus

NEW YORK, Jan 10, 2026, 10:06 EST — Market closed Walmart Inc will enter the Nasdaq-100 Index on Jan. 20, taking the spot of AstraZeneca, Nasdaq announced Friday. This shift comes after the retail giant switched its listing from the New York Stock Exchange to Nasdaq. Shares of Walmart climbed 1.3% on Friday, closing at $114.53, with intraday trading ranging from $112.06 to $115.46.
10 January 2026
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Walmart stock lands in the Nasdaq-100 on Jan. 20 — what investors watch next

Walmart stock lands in the Nasdaq-100 on Jan. 20 — what investors watch next

New York, January 10, 2026, 07:15 EST — The market has closed. Walmart Inc is set to enter the Nasdaq-100 Index before trading opens on Jan. 20, replacing Britain’s AstraZeneca, Nasdaq announced late Friday. The stock ended the day up 1.3% at $114.53, having fluctuated between $112.06 and $115.46, staying within roughly 2% of its 52-week high. U.S. markets will be closed on Jan. 19 in observance of Martin Luther King Jr. Day.
10 January 2026
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Invesco QQQ (QQQ) Sees New Institutional Position Shifts on Dec. 26 as Nasdaq-100 ETF Trading Resumes After Christmas

Invesco QQQ (QQQ) Sees New Institutional Position Shifts on Dec. 26 as Nasdaq-100 ETF Trading Resumes After Christmas

December 26, 2025 — A fresh wave of institutional disclosures published Friday shows investment advisers and money managers continuing to fine-tune exposure to the Invesco QQQ ETF, one of the market’s most closely watched proxies for the Nasdaq-100 and U.S. mega-cap growth stocks. The latest updates, drawn from SEC Form 13F filings covering the third quarter, show a mix of additions and trims—an outcome that underscores how QQQ remains a core portfolio building block even as investors debate the durability of the tech-led rally heading into 2026. MarketBeat Friday’s filings arrive in a market environment defined by holiday-thinned volumes and renewed “Santa Claus rally” chatter. Reuters reported U.S. stock index futures were subdued in post-Christmas trading, with investors still leaning on expectations for further rate cuts and resilient corporate earnings to extend gains into next year. Reuters
26 December 2025
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Western Digital (WDC) Stock After Hours on Dec. 22, 2025: Nasdaq-100 Debut, Today’s Headlines, Analyst Forecasts, and What to Watch Before Tuesday’s Open

Western Digital (WDC) Stock After Hours on Dec. 22, 2025: Nasdaq-100 Debut, Today’s Headlines, Analyst Forecasts, and What to Watch Before Tuesday’s Open

Western Digital Corporation is ending Monday’s session in the spotlight—but not for a simple “up day.” The stock closed regular trading on Dec. 22 at $176.76, down 2.39%, and then held roughly steady in after-hours action. Finviz+1 Why the heightened attention? Today was Western Digital’s first session as a newly added member of the Nasdaq-100, a structural change that can influence liquidity, passive flows, and short-term volatility—especially during a holiday-shortened week. Investing.com+1
23 December 2025
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Alnylam Pharmaceuticals (ALNY) Stock After Hours: Nasdaq-100 debut, fresh catalysts, and what to watch before Tuesday’s open (Dec. 23)

Alnylam Pharmaceuticals (ALNY) Stock After Hours: Nasdaq-100 debut, fresh catalysts, and what to watch before Tuesday’s open (Dec. 23)

Dec. 22, 2025 — After the closing bell, Alnylam Pharmaceuticals, Inc. is finishing the day in the spotlight for a reason that has nothing to do with a clinical readout—at least not directly. Monday marked the company’s first trading day as a Nasdaq-100 constituent, a mechanical event that can reshape near-term flows even when the underlying business story is unchanged. Here’s what happened in Monday’s session, what the after-hours tape is showing, and the key headlines, forecasts, and risk factors investors are weighing before the market opens Tuesday.
23 December 2025
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Insmed (INSM) Stock After Hours Today (Dec. 22, 2025): Closing Price, Nasdaq-100 Effect, Fresh Forecasts, and What to Watch Before Tuesday’s Open

Insmed (INSM) Stock After Hours Today (Dec. 22, 2025): Closing Price, Nasdaq-100 Effect, Fresh Forecasts, and What to Watch Before Tuesday’s Open

Insmed Incorporated ended Monday’s session slightly higher and then traded in a tight range after the closing bell, as investors weighed two forces that have been shaping the stock into year-end: Nasdaq-100 inclusion and the market’s continuing digestion of last week’s brensocatib CRSsNP trial miss. StockAnalysis+2Mondo Visione+2 Below is what happened after the bell on Dec. 22, 2025, and the key items to know before U.S. markets open Tuesday, Dec. 23, 2025.
23 December 2025
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Western Digital (WDC) Stock After Hours Today (Dec. 22, 2025): Post-Close Update, Nasdaq-100 Impact, and What to Watch Before Tuesday’s Open

Western Digital (WDC) Stock After Hours Today (Dec. 22, 2025): Post-Close Update, Nasdaq-100 Impact, and What to Watch Before Tuesday’s Open

Western Digital Corporation ended Monday’s session lower, then steadied in after-hours trading—setting up an eventful Tuesday morning as investors balance index-related flows, holiday-thinned liquidity, and a packed U.S. economic calendar. As of the 4:00 p.m. ET close, WDC finished at $176.76, down $4.32. In after-hours trading, the stock ticked up to $177.13 as of 6:24 p.m. ET. Yahoo Finance+1
23 December 2025
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Seagate Technology Holdings plc (STX) Stock After Hours on Dec. 22, 2025: Nasdaq‑100 Inclusion, Dividend Deadline, and What to Watch Before the Dec. 23 Market Open

Seagate Technology Holdings plc (STX) Stock After Hours on Dec. 22, 2025: Nasdaq‑100 Inclusion, Dividend Deadline, and What to Watch Before the Dec. 23 Market Open

Seagate Technology Holdings plc ended Monday’s regular session sharply lower even as the broader market started the holiday week in positive territory—and investors are now turning their attention to three near-term catalysts: lingering Nasdaq‑100 reconstitution effects, a dividend “last day to buy” window that arrives quickly, and a busy slate of U.S. economic releases before Tuesday’s open. Seagate shares closed at $282.85 on Monday, Dec. 22, down $13.48. The day was notably volatile: STX opened at $300.96, traded as high as $302.40, and fell as low as $279.50 on volume of about 4.34 million shares.
23 December 2025
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Alnylam Pharmaceuticals (ALNY) Stock on Dec. 22, 2025: Nasdaq-100 Debut, AMVUTTRA Momentum, Analyst Price Targets and the 2026 Outlook

Alnylam Pharmaceuticals (ALNY) Stock on Dec. 22, 2025: Nasdaq-100 Debut, AMVUTTRA Momentum, Analyst Price Targets and the 2026 Outlook

Dec. 22, 2025 — Alnylam Pharmaceuticals, Inc. is stepping into a new tier of market visibility today as its Nasdaq-100 Index membership takes effect ahead of the opening bell—an index catalyst that can influence near-term trading and broaden long-term institutional ownership. Nasdaq+1 ALNY was trading around $405.60 on Dec. 22, up about 1.3% versus the prior close—an incremental move that nonetheless lands in the middle of a busier-than-usual news cycle for the RNAi leader.
22 December 2025
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Monolithic Power Systems (MPWR) Stock on Dec. 22, 2025: Nasdaq-100 Debut, Analyst Targets, Dividend, and Fresh Technical Signals

Monolithic Power Systems (MPWR) Stock on Dec. 22, 2025: Nasdaq-100 Debut, Analyst Targets, Dividend, and Fresh Technical Signals

Monolithic Power Systems, Inc. is starting the week with a major visibility upgrade: MPWR is now officially part of the Nasdaq-100 Index, effective before the market opened on Monday, December 22, 2025. Nasdaq+1 For investors, the timing matters. Index additions can trigger mechanical buying from passive funds that track the Nasdaq-100—potentially boosting liquidity and short-term volatility—while MPWR’s fundamental story remains tied to power-management demand across AI data centers, automotive, storage/computing, and industrial markets. Nasdaq+1
22 December 2025
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Alnylam Pharmaceuticals (ALNY) Stock: Nasdaq-100 Entry, Amvuttra Momentum, Analyst Targets and Key Risks to Know Before the Dec. 22, 2025 Market Open

Alnylam Pharmaceuticals (ALNY) Stock: Nasdaq-100 Entry, Amvuttra Momentum, Analyst Targets and Key Risks to Know Before the Dec. 22, 2025 Market Open

Ahead of the U.S. stock market open on Monday, December 22, 2025, Alnylam Pharmaceuticals, Inc. is stepping into a new spotlight—not just for biotech fundamentals, but also for a major index catalyst that can reshape short-term trading dynamics. As of the most recent close, ALNY last traded around $400.23, within a roughly $220–$500 52-week range.
22 December 2025
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Western Digital (WDC) Stock Week Ahead (Dec. 22–26, 2025): Nasdaq-100 Inclusion, Analyst Targets, and What to Watch

Western Digital (WDC) Stock Week Ahead (Dec. 22–26, 2025): Nasdaq-100 Inclusion, Analyst Targets, and What to Watch

Dateline: December 21, 2025 Western Digital Corporation heads into the week with a rare combination of index-driven demand and fundamental momentum. The headline catalyst is Western Digital’s addition to the Nasdaq-100, effective before the market opens Monday, December 22, 2025—a change that can trigger mechanical buying from passive funds and raise trading volume. Reuters+1
21 December 2025
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QQQ Stock Price Today (Dec. 16, 2025): Nasdaq-100 ETF Wavers Ahead of Delayed Jobs Data, Rate-Cut Debate, and “AI Blues”

QQQ Stock Price Today (Dec. 16, 2025): Nasdaq-100 ETF Wavers Ahead of Delayed Jobs Data, Rate-Cut Debate, and “AI Blues”

Invesco QQQ Trust — the flagship ETF that tracks the Nasdaq-100 — is starting Tuesday, December 16, 2025 with investors laser-focused on a rare mix of catalysts: delayed U.S. employment data, shifting Federal Reserve rate-cut expectations, and renewed scrutiny around AI-heavy mega-cap valuations. As of early pre-market updates, QQQ was hovering around the $610 area, after closing Monday at $610.54, down about 0.5% on the day. StockAnalysis The ETF’s scale matters here: QQQ has roughly $409 billion in assets, meaning even modest index swings translate into significant dollar moves across portfolios. StockAnalysis
16 December 2025
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Lululemon Stock (LULU) After Hours Today (Dec. 15, 2025): Price Action, Nasdaq-100 Exit, and What to Watch Before Tuesday’s Open

Lululemon Stock (LULU) After Hours Today (Dec. 15, 2025): Price Action, Nasdaq-100 Exit, and What to Watch Before Tuesday’s Open

Lululemon athletica inc. finished Monday’s session modestly higher—and then barely budged in after-hours trading—leaving investors focused less on tonight’s tape and more on two bigger drivers heading into Tuesday’s open: index-related flows tied to Lululemon’s upcoming Nasdaq-100 removal and a data-heavy U.S. macro morning that could swing consumer discretionary stocks. LULU shares closed at $206.29 and were slightly lower after hours at $206.20 as of early evening trading, a quiet “after the bell” snapshot that suggests the market is still digesting last week’s earnings/leadership reset—and repricing what comes next. StockAnalysis
16 December 2025
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