BofA Warns: If Republicans Lose the Senate, US Stocks Could Plunge 10%+
TREE NEWS reports: Wall Street has been pricing in a benign midterm election outcome, but Bank of America strategist Michael Hartnett warns that this assumption could be dangerously wrong. In a research note published on August 23, Hartnett argued that if Democrats win control of the Senate, the two core narratives driving the market — financial deregulation and AI-friendly policy — would both be shattered. The result, he predicts, would be a stock market correction of more than 10% before year-end, accompanied by a weaker dollar and lower bond yields.
What Happened: The Political Reality Check
Hartnett’s warning is grounded in deteriorating political fundamentals for Republicans. According to BofA data, President Trump’s overall approval rating stands at just 39%, with economic approval at 36% and inflation approval even lower at 30% — all well below pre-Iran-war levels. This suggests the Republican base is not as solid as markets assume, and the possibility of a Democratic Senate victory is being underestimated.
The Texas governor’s race, in particular, is emerging as a referendum on AI policy. The massive expansion of AI data centers has led to soaring electricity demand and infrastructure strain, sparking political backlash in Texas. If Democrats were to pull off an upset in Texas, investors would be forced to reassess whether AI capital expenditures can continue to enjoy unconditional political support.
Market Impact: Two Key Sectors at Risk
Hartnett identifies two primary channels through which a Democratic Senate win would hit markets:
- Financials (XLF): The financial sector has been a key beneficiary of deregulation expectations. If Democrats take the Senate, those expectations would evaporate, pressuring bank stocks. Hartnett suggests a bearish options strategy — a Nov 56/52 put spread on XLF — with a maximum payoff ratio of about 4x.
- Semiconductors (SMH): The semiconductor sector has already been losing momentum since late June, underperforming the broader market. A policy shift against AI capex would further undermine the sector. Hartnett notes that recent volatility compression makes hedging relatively cheap, and recommends downside options structures on SMH.
These two sectors are the linchpins of the current bull market narrative. A simultaneous shock to both would likely trigger a broad risk-off move, with investors rotating out of equities and into safe havens.
Flow Data Confirms the Shift
Fund flows are already moving in the bearish direction. BofA data shows that semiconductor ETFs have seen cumulative outflows of approximately $6 billion over the past three weeks. While Hartnett cautions that this may not be explicitly election-driven, the direction is consistent with the risk scenario he outlines.
Alternative Catalyst: The Bond Market
Hartnett also offers a second pathway to the same conclusion. He argues that quantitative easing (QE) spawned the 20-year bull market and the ‘too big to fail’ narrative on Wall Street. After two decades of extraordinary monetary stimulus, markets expect the current ‘repair fixed income’ policy to work. But if Treasury Secretary Bessent fails to push the 30-year yield below 5%, policy failure would likely weaken the dollar and trigger a shift toward shorting risk assets, leverage (especially AI hyperscalers and private credit), and cyclical sectors like financials.
‘Different catalysts, same hedge: financials and AI,’ Hartnett concludes.
Key Takeaways for Investors
- Do not assume a benign midterm outcome: The market’s current pricing may be too complacent.
- Hedge financials and semiconductors: These are the sectors most exposed to a shift in political winds.
- Monitor Texas governor race: An upset could signal a broader repricing of AI capex.
- Watch the 30-year Treasury yield: A break above 5% could trigger a policy-failure trade.
- Consider low-cost options hedges: With volatility depressed, protection is relatively cheap.
