US stock index futures were little changed Sunday evening as investors weighed heightened geopolitical risks following the US military attack on Venezuela and the capture of President Nicolás Maduro.

The S&P 500 Futures rose 0.1% to 6,908.25, while the Nasdaq 100 Futures gained 0.3% to 25,461.75 by 4:35 AM Moscow time. The Dow Jones Futures fell 0.1% to 48,581.0.

Traders weigh the US attack on Venezuela

Wall Street closed mixed last week, with no "Santa Claus rally" in sight. On Friday, the Dow Jones Industrial Average rose 0.7%, the S&P 500 gained 0.2%, and the NASDAQ Composite closed virtually unchanged.

The US military launched airstrikes in Venezuela and detained Maduro, removing him from the country to face charges.

President Donald Trump confirmed the operation in a statement on social media, calling it decisive action against what he described as a rogue regime. Trump said the US would oversee a "safe and orderly transition" in Venezuela, remarks that heightened market anxiety about the scope and duration of US involvement in the oil-rich country.

Senior officials later sought to temper expectations, saying Washington was not planning long-term governance, but investors remained wary of the potential fallout. Energy markets have been in focus, as Venezuela holds the world's largest proven oil reserves.

Beyond commodities, the geopolitical shock has raised broader concerns about market volatility.

Labor market data expected this week

U.S. equities ended the year unevenly amid low liquidity, as investors hesitated to take large positions in anticipation of fresh catalysts and key data releases.

Looking ahead, traders are expected to closely monitor the U.S. labor market report for December, due out on Friday, which could shape expectations for Federal Reserve policy in the coming months.

Markets are currently pricing in two more 25 basis point rate cuts in 2026 following the last easing in December; however, growing disagreements between policymakers are keeping traders cautious.