US midterms: Congress changes hands. What the first move says about capital flows

Special Report · Week 45 · Wednesday 4 November 2026 · Prelude to Friday's end-of-week scan

Networks project Democrats to win both the House and the Senate. That sets up a divided government for the last two years of President Trump's term.

The first market reaction followed a "gridlock plus oversight" pattern. US equity futures fell, led by the Nasdaq. Treasuries rallied as investors priced in fewer deficit-funded tax cuts and less bond supply, and the dollar weakened against almost every major currency.

The biggest falls came where the rotation was already under way: AI, semiconductors and North Asian chip markets. Overnight losses then narrowed as buyers stepped in on the dip, so we treat this as a first reading, not a verdict. Friday's end-of-week scan will show whether one night of repricing turns into a change in where money is flowing.

Readings are from 4 November 2026, before the US cash open. Later in the Asian session, futures narrowed their losses to about −0.4% (S&P 500) and −0.5% (Nasdaq-100), with the 10-year near 4.96%. Prints vary with the time they were taken; our Weekly Review uses New York closing prices only.

Seat counts are network projections, not certified results, and will move as counting finishes.

Senate flips reported overnight include North Carolina, South Carolina, Ohio, Iowa, Texas, Kansas and Maine. Texas matters for markets, not just politics. It is one of the fastest-growing data-centre markets in the US, which is why Asian chip stocks reacted to that race in particular.

1. Gridlock and the bond market. With power split, large partisan bills become hard to pass. Markets read that as fewer deficit-funded tax cuts or spending packages, which means less new Treasury issuance and less upward pressure on growth, inflation and yields. With US federal debt near $40 trillion, that is why bonds rallied while equities fell. Five-year yields led the move, falling as much as 9bp to 4.68%.

2. Oversight of AI and Big Tech. Committee chairs and subpoena power pass to the new majorities. Strategists expect closer scrutiny of AI spending, data-centre build-outs and Big Tech conduct. This lands on a trade that was already struggling: Goldman Sachs' broad AI basket fell 15% in October and is more than 24% below its peak.

3. A policy tilt by sector. Strategists expect pressure to restore enhanced ACA subsidies, revisit Medicaid changes, and act on drug prices and consumer fees. Real growth in defence spending gets harder unless a wider budget deal covers both defence and health care.

4. The dollar. Lower yields make the dollar less attractive to hold for its interest rate. Overnight the dollar index fell to about 101.4. The euro rose 0.5% to $1.1249, the yen 0.7% to 157.63 per dollar and the Swiss franc 0.9% to 0.8133 per dollar. One analyst took the other side: if markets see the Fed as more independent, that could support the dollar at the margin.

The two biggest falls came in the markets most tied to AI memory and chips. Those are the same two that led the outflow from week 42 to week 44.

This is how each channel reaches the instruments Capital Flows scans. "Pressure" is the direction a policy channel pushes, not a model reading. The scan decides whether price and flow agree.

Sector views are from Reuters, CNBC, Wells Fargo Investment Institute, Principal Asset Management and Wolfe Research (3–4 Nov 2026). The mapping to the universe is our own.

The usual pattern. It is often noted that the S&P 500 has been higher 12 months after every midterm since 1946, and the months after a midterm are historically strong. Part of the reason is that midterms tend to follow a weak stretch, and the uncertainty clears once the result is known.

Why this year is different. This time the index went into the vote up by double digits, not down (BTIG), and its leadership rests on an AI trade that is now breaking down. There are very few past cases of a Republican president facing a newly Democratic Congress (1986, 2006), too few to model.

The framework does not forecast. It sets out what each path would look like in the data, so Friday's scan can show which one the market is on.

A and C can happen together, and so often do B and C. The combination that would most change the regime read is B without C: growth leadership breaking while the dollar steadies. That would point to a risk-off rotation rather than one driven by the currency.

Risk overlay. The Iran conflict sits outside the election but affects every path. An escalation would lift oil, help XLE and weigh on consumers and wider equities, whoever controls Congress.

Friday's end-of-week scan runs on New York closes on Friday 6 November, covering all 40 instruments and 9 ratios as usual. Sunday's Weekly Review will score this report against the readings below.

Times are from the standard release schedule; check them before each session.

This Special Report is the opening read for this week's scan. Sunday's Weekly Review (9am) scores it against Friday's closes: which path played out, and what the 40-ETF map shows next.

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Quadrants: Leading means beating the US market and still gaining ground; Weakening means ahead but losing ground; Lagging means behind and still falling back; Improving means behind but catching up. The 55-day and 21-week averages are the exponential moving averages the scan uses. "Pressure" in the transmission map describes a policy channel, not a model reading. Market figures here are overnight and pre-market prints with their source and time; the Weekly Review uses New York regular-session closes only.

Published by Blueprint Three Consulting Limited, which is not authorised by the Financial Conduct Authority. Capital Flows Global is general market research for information only. It records rules-based model readings and market structure. It is not investment advice or a recommendation to deal in any instrument, and it does not take anyone's circumstances into account. Election outcomes are reported as projected by the named news organisations and are not a view on any party or candidate. Past patterns, including election-cycle patterns, do not guarantee future results.

Blueprint Three Consulting Limited (Companies House 15597874), 66 Paul Street, London, EC2A 4NA. © 2026 Capital Flows Global.