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      Iran regime cited as Trump admin set to…

      October 3, 2026

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      After her father’s addiction led to a $91K…

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      McIntosh: Midterms a choice between Trump’s ‘great progress’…

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      Democrats threaten to grind Senate to a halt…

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      Where American support for Trump’s Iran strikes stand…

      October 3, 2026

  • Economy
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      Explaining Certificate of Need

      October 14, 2026

      Economy

      Is Qualified Immunity Beginning to Crack?

      October 14, 2026

      Economy

      Electric Vehicle Subsidy U-Turn Leaves Factories and Workers…

      October 14, 2026

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      The Federal Government Just Posted the Largest Annual…

      October 13, 2026

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      Deirdre McCloskey Wants Old Liberalism Back: ‘Equality of…

      October 13, 2026

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      TSMC earnings crush estimates as profit jumps 69%,…

      October 15, 2026

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      Anthropic revenue jumps 45% to nearly $17B, but…

      October 15, 2026

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      Hang Seng Index outlook darkens as Lenovo Group…

      October 15, 2026

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      Here’s why the KOSPI crashed 8% and triggered…

      October 15, 2026

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      Samsung, SK Hynix stocks crash 9%-11% as risk…

      October 15, 2026

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      Delta-Neutral Options Strategies for Earnings

      September 21, 2026

      Investing

      The Last 14 Minutes: Why We Stopped Looking…

      September 8, 2026

      Investing

      Expanded Trading Hours for Select Equity Options

      August 16, 2026

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      Pre-Earnings Entry Price: What 31,000 Cycles Say

      August 15, 2026

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      Optimizing Portfolio Growth: Managing Capital and Liabilities in…

      May 24, 2026

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Girls Rock Investing
  • Top News
    • Top News

      Iran regime cited as Trump admin set to…

      October 3, 2026

      Top News

      After her father’s addiction led to a $91K…

      October 3, 2026

      Top News

      McIntosh: Midterms a choice between Trump’s ‘great progress’…

      October 3, 2026

      Top News

      Democrats threaten to grind Senate to a halt…

      October 3, 2026

      Top News

      Where American support for Trump’s Iran strikes stand…

      October 3, 2026

  • Economy
    • Economy

      Explaining Certificate of Need

      October 14, 2026

      Economy

      Is Qualified Immunity Beginning to Crack?

      October 14, 2026

      Economy

      Electric Vehicle Subsidy U-Turn Leaves Factories and Workers…

      October 14, 2026

      Economy

      The Federal Government Just Posted the Largest Annual…

      October 13, 2026

      Economy

      Deirdre McCloskey Wants Old Liberalism Back: ‘Equality of…

      October 13, 2026

  • Ideas
    • Ideas

      TSMC earnings crush estimates as profit jumps 69%,…

      October 15, 2026

      Ideas

      Anthropic revenue jumps 45% to nearly $17B, but…

      October 15, 2026

      Ideas

      Hang Seng Index outlook darkens as Lenovo Group…

      October 15, 2026

      Ideas

      Here’s why the KOSPI crashed 8% and triggered…

      October 15, 2026

      Ideas

      Samsung, SK Hynix stocks crash 9%-11% as risk…

      October 15, 2026

  • Investing
    • Investing

      Delta-Neutral Options Strategies for Earnings

      September 21, 2026

      Investing

      The Last 14 Minutes: Why We Stopped Looking…

      September 8, 2026

      Investing

      Expanded Trading Hours for Select Equity Options

      August 16, 2026

      Investing

      Pre-Earnings Entry Price: What 31,000 Cycles Say

      August 15, 2026

      Investing

      Optimizing Portfolio Growth: Managing Capital and Liabilities in…

      May 24, 2026

  • Stock
Investing

Delta-Neutral Options Strategies for Earnings

September 21, 2026 0 comment

The foundation of these strategies is a concept called delta-neutral.   This guide explains what delta-neutral means, walks through the...

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Investing

The Last 14 Minutes: Why We Stopped Looking at Options Closing Prices

September 8, 2026 0 comment

What happened was the front leg’s closing quote: it blew out to $4.70 wide — and dragged the computed mid...

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Investing

Expanded Trading Hours for Select Equity Options

August 16, 2026 0 comment

  Opening Process The opening rotation process for equity options traded during GTH will follow the existing RTH opening process...

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Investing

Pre-Earnings Entry Price: What 31,000 Cycles Say

August 15, 2026 0 comment

So I tested it.   What was measured Every completed pre-earnings cycle in the backtest history, restricted to long straddles and...

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Investing

Optimizing Portfolio Growth: Managing Capital and Liabilities in Modern Tax Planning

May 24, 2026 0 comment

Thinking about taxes proactively allows you to structure your investments and financial decisions to minimize your obligations and maximize long-term...

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  • Economy

    Rubble to Riches: Reckoning with West Germany’s Postwar Economic Miracle 

    by Girls Rock Investing October 7, 2026
    by Girls Rock Investing October 7, 2026

    In the spring of 1945, Duke economics Professor Calvin B. Hoover traveled to Germany at the behest of the US Office of Strategic Services, the forerunner of the CIA. They…

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  • Ideas

    FTSE 100 outlook: Gilt yields climb as markets price in a BoE Rate Hike

    by Girls Rock Investing October 7, 2026
    by Girls Rock Investing October 7, 2026

    The FTSE 100 Index has come under pressure in the past few weeks, moving from a high of 10,990 in July to the current 10,523. This retreat has continued as…

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  • Ideas

    Michael Burry is getting more bearish on Nvidia, Palantir and Micron: here’s why

    by Girls Rock Investing October 7, 2026
    by Girls Rock Investing October 7, 2026

    Michael Burry is becoming more aggressive against three of the market’s biggest AI winners. The Big Short investor has replaced outright bearish positions in Nvidia, Palantir and Micron with longer-dated…

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  • Economy

    AI Consciousness Could Become a Regulatory Moat

    by Girls Rock Investing October 7, 2026
    by Girls Rock Investing October 7, 2026

    Artificial intelligence companies have spent years convincing the public that their products are useful. More recently, they’ve sought to persuade policymakers that AI poses an unlikely but real existential threat…

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  • Ideas

    Cathie Wood sold SpaceX to buy this battered stock with 149% Wall Street upside

    by Girls Rock Investing October 7, 2026
    by Girls Rock Investing October 7, 2026

    Archer Aviation stock (NYSE: ACHR) has fallen roughly 38% in 2026, but Cathie Wood is buying the dip. ARK Invest funds purchased about 2.57 million ACHR shares worth $12.1 million…

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  • Ideas

    Penguin Solutions profit jumps 888% on AI demand: can PENG justify a 228% rally?

    by Girls Rock Investing October 7, 2026
    by Girls Rock Investing October 7, 2026

    Penguin Solutions delivered the kind of quarter needed to defend a 228% stock rally, but the valuation question has not disappeared. The AI infrastructure company reported an 888% jump in…

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  • Ideas

    KOSPI keeps sliding while Nikkei holds 70,000: why Korea is taking the bigger hit

    by Girls Rock Investing October 7, 2026
    by Girls Rock Investing October 7, 2026

    Asian stocks diverged on Wednesday as South Korea’s KOSPI extended its retreat while Japan’s Nikkei 225 held close to 70,700, showing how differently the region’s two chip-heavy markets are absorbing…

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  • Ideas

    SpaceX is borrowing $40B for Nvidia chips: should SPCX investors worry?

    by Girls Rock Investing October 7, 2026
    by Girls Rock Investing October 7, 2026

    SpaceX stock (NASDAQ: SPCX) slipped after hours on Tuesday after the Financial Times reported that Elon Musk’s company is seeking $40 billion of financing to buy Nvidia AI chips. The…

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  • Ideas

    Evening Digest: Anthropic expands AI access, oil, gold and yields retreat

    by Girls Rock Investing October 6, 2026
    by Girls Rock Investing October 6, 2026

    Anthropic is expanding access to its most advanced AI models to selected organisations for high-risk cybersecurity testing in collaboration with the US government. Oil prices were little changed as rising…

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  • Ideas

    CoreWeave stock faces mounting risks as key challenges persist

    by Girls Rock Investing October 6, 2026
    by Girls Rock Investing October 6, 2026

    CoreWeave stock climbed to $91.90 on Tuesday, tracking gains across other neocloud companies such as IREN and Nebius. The shares are now up more than 50% from their lowest level…

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