#美国中期选举:市场有哪些期待?

Midterm elections ultimately determine control of Congress for the next two years. What matters most to the market is not an immediate change to existing laws, but the scope for maneuvering on the fiscal deficit, regulation, industry policy, and debt-ceiling negotiations. Historically, U.S. stocks have tended to perform well after midterm elections, but different outcomes lead to different market pricing.

I. The market’s most anticipated baseline scenario: divided government (congressional checks and balances)

This is the scenario preferred by most institutions: the party in power loses at least one chamber, resulting in legislative gridlock.

1. Fiscal outlook: It will be difficult to pass another round of large-scale tax cuts or substantial new spending. Expectations for deficit expansion should cool, easing upward pressure on long-term U.S. Treasury yields and benefiting the bond market. Historical data shows that when the president’s party loses control of Congress, 10-year Treasury yields have tended to fall afterward.
​
2. Regulatory outlook: Aggressive legislation will be difficult to pass, so big tech and AI are unlikely to face stringent laws immediately in the short term. However, congressional investigations and hearings will become more frequent, causing periodic market sentiment swings.
​
3. Trading logic: “Fewer new policies = less uncertainty.” Equity markets usually view a divided Congress as a relatively favorable outcome.