04:06 PM EDT, 10/06/2025 (MT Newswires) -- US equity indexes were mixed on Monday as gains in semiconductor and software stocks led the S&P 500 and the Nasdaq Composite to record highs amid the ongoing federal government shutdown.

* The partial government shutdown entered its sixth day Monday after lawmakers failed to reach an agreement on a key spending bill, according to CNN. Congressional leaders in both parties continued to stand by their demands, and the standoff is expected to persist as the Senate prepares to vote at 5:30 p.m. Eastern time on a House measure to fund the government through Nov. 21.

* November West Texas Intermediate crude oil rose $0.89 to settle at $61.77 per barrel, while December Brent crude, the global benchmark, was last seen up $1.02 to $65.55.

* Advanced Micro Devices ( AMD ) will provide 6 gigawatts of graphics processing units to OpenAI under a multiyear agreement, the companies announced Monday. Benchmark raised its price target on AMD shares to $270 from $210. The company's shares were up nearly 23%, leading gains on both the S&P 500 and Nasdaq.

* Verizon Communications ( VZ ) appointed independent lead director Dan Schulman as its new chief executive, effective immediately. Shares of the telecom company dropped about 4.9%, the biggest decline on the Dow Jones Industrial Average.