Published: September 30, 2025
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The U.S. government is less than 24 hours away from a full shutdown. Funding authority expires at midnight today. Prediction markets now show a 78% chance it happens. Last-minute deals have happened before, but this fight feels different. (a thread)

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At the center of the standoff: health care. Republicans passed a clean 7-week extension, but Democrats are blocking it unless it includes an extension of Obamacare subsidies, reverses Medicaid cuts, and limits Trump’s power to rescind funds. Both sides see caving as

This means that if no agreement is reached, roughly 900,000 federal civilian workers could be furloughed starting Oct. 1. Mandatory spending programs like Social Security, Medicare, and debt interest payments continue, but key agencies like defense, research, and national parks

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Shutdowns have a direct hit on GDP. BofA estimates every week of a full shutdown trims ~0.1pp from quarterly growth. The impact depends on how many workers are furloughed, since GDP accounting uses hours worked to measure federal consumption. Fewer hours = lower GDP.

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The longer it lasts, the bigger the drag. Private contractors, research spending, and government services can’t just “catch up” later. In 2018–19, the longest shutdown in history, the economic hit lingered well beyond its 34 days. This time, all agencies are in play, raising

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The labor market is also at risk of statistical noise. If the shutdown lasts into the October 18 reference week, furloughed employees may be misclassified as unemployed. That alone could push the unemployment rate up 0.1–0.2pp, even if these jobs are ultimately restored with

Perhaps the biggest headache for Wall Street? Economic data releases will be delayed. That means no jobs report on Oct. 3, no trade balance Oct. 7, and key inflation data like CPI (Oct. 15) and PPI (Oct. 16) will be pushed back. Investors will be flying blind until the

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Market reaction to shutdowns is mixed. On average, the S&P 500 is flat during shutdowns and gains +0.6% the week after, while 10Y yields dip before, rise slightly during, then fall again. But with high rates, sticky inflation, and debt risks, 2025 could prove far more

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Past shutdowns give clues but no guarantees. The 2013 shutdown lasted 17 days before defense reopened. The 2018–19 shutdown ran 34 days, but most of government was already funded. This time, the risk is a broad-based freeze with far greater immediate impacts on the U.S.

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Bottom line: The U.S. is heading straight into a shutdown unless one side blinks. History says shutdowns are short, with pressure mounting quickly. But in today’s political climate, nothing is certain. Investors, workers, and the economy are all bracing for what could be a

If you liked this thread, I write more thoughts like this on my Substack. It’s where I take the time to dig into markets, policy, and the economy with more detail. Would love to have you reading along there. @stockmktnews? class="text-blue-500 hover:underline" target="_blank" rel="noopener noreferrer">https://substack.com/@stockmkt...

@_Investinq Prediction markets are just measuring what gamblers think and have no actual bearing on what happens.

@_Investinq Donald Trump has to shutdown the government or the Epstein files will come out proving his guilt.

@_Investinq We have a dictatorial president…….this time it is different

@_Investinq My strategy plan ⬇️Show more

@_Investinq Only in America: government shutdown odds are now a trading opportunity. Wall Street's popcorn index surges. 🍿

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