01:08 PM EDT, 10/06/2025 (MT Newswires) -- US equity indexes were mixed as gains in semiconductor and software firms lifted the S&P 500 and the Nasdaq Composite after midday on Monday, while a partial federal government shutdown extended to a sixth day.

The Nasdaq Composite advanced 0.7% to 22,936.1, and the S&P 500 climbed 0.4% to 6,741.5. The Dow Jones Industrial Average, however, fell 0.2% to 46,655.2.

Technology, consumer discretionary, and energy led the gainers while consumer staples and real estate were among the decliners intraday. Last week, healthcare and technology led the sector charts, with the so-called AI-trade continuing to lift the latter.

Advanced Micro Devices ( AMD ) will supply Microsoft ( MSFT )-backed (MSFT) OpenAI with 6 gigawatts of graphics processing units as part of a multiyear deal, the companies said Monday. Benchmark adjusted its price target for Advanced Micro Devices ( AMD ) shares to $270 from $210. The stock soared 27% intraday, topping the S&P 500 and the Nasdaq.

Tesla (TSLA) shares were up over 4.4% intraday, among the leaders on the Nasdaq, after the electric vehicle manufacturer hinted at an event or announcement likely scheduled for Tuesday.

Verizon Communications' ( VZ ) board appointed Dan Schulman, an independent lead director, as chief executive officer, effective immediately. Shares of the telecommunications giant dropped 5.1% intraday, the steepest decline on the S&P 500 and the Dow Jones.

The partial federal government shutdown, which began last week after lawmakers disagreed on a key spending bill, entered its sixth day on Monday. It delayed the highly anticipated September jobs report that was scheduled to be released on Friday. This week, trade and jobless claims are included in data that may not be released if the shutdown continues.

Top congressional leaders from both parties stuck to their opposing demands amid the shutdown, signaling the standoff will likely drag on when the Senate returns this week, CNN reported. "We're at a stalemate," Senate Majority Leader John Thune conceded on Fox News' "Sunday Morning Futures," calling Democrats' desires to reverse Medicaid cuts implemented in President Donald Trump's policy package a "nonstarter."

Gold futures jumped 1.8% to $3,977.60.

The ICE US Dollar Index, which measures the greenback against a basket of currencies, advanced 0.4% to 98.13.

Most Treasury yields rose, with the two-year up 2 basis points to 3.59% and the 10-year rate jumped 4.1 basis points to 4.16%.

West Texas Intermediate crude oil futures rose 1.6% to $61.83 a barrel.

The Organization of the Petroleum Exporting Countries and allied producers, known as OPEC+, opted for a second-straight addition of 137,000 barrels per day in members' quotas for November, versus market expectations of 500,000 bpd of new supply to gain market share amid rising production outside the cartel.