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Nasdaq-100 16 December 2025 - 7 July 2026

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

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
26 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.
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
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.
23 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

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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