US midterms: what the vote could mean for the S&P 500 and Indian stocks

what happened

According to Moody's, the outcome of the November 2026 US midterm elections could carry significant geopolitical and market consequences for India. Emkay Global Financial Services argues that the effect on Indian equities will flow mainly through crude oil prices, the dollar and US Treasury yields, rather than through any direct change in Washington's policy toward New Delhi.

Emkay expects that a Democratic win would increase scrutiny of Trump's tariff and immigration decisions, but would be unlikely to curb his executive powers much. The bigger risk for markets is a renewed flare-up in the Iran conflict after the vote, which could push oil higher and pressure the rupee. A weaker dollar, lower yields and cheaper crude would, in the brokerage's view, support Indian stocks, including the Sensex and Nifty.

Historically the S&P 500 has tended to gain after midterms, but Emkay says current starting conditions are less favourable than usual. The index is already about 12% above its level six months ago, while two-year and 10-year Treasury yields have risen by roughly 120 and 100 basis points, and Brent has climbed around 61%.

why it matters

The story matters beyond the US. Oil, the dollar and bond yields feed directly into India's currency and equity market, so geopolitical risk around Iran could outweigh the domestic political outcome of the vote for investors.

market impact

Oil and rupee: renewed Iran escalation could lift Brent and weigh on the rupee

• ▲Brent pressure up — renewed escalation in the Iran conflict could push prices higher
• ↔S&P 500 mixed — past post-midterm gains versus stretched valuations and higher yields
• ▼Indian rupee pressure down — higher oil prices worsen India's balance of payments

instruments