04:24 PM EDT, 06/23/2025 (MT Newswires) -- US benchmark equity indexes closed higher on Monday, as oil prices fell after Qatar claimed Iranian missiles targeting US bases were intercepted.

The Nasdaq was up 0.9% to 19,630.97 while the S&P 500 gained 1% to 6,025.17. The Dow Jones Industrial Average increased 0.9% to 42,581.78. Energy was the only sector in red, while consumer discretionary and real estate paced the gainers.

US Treasury yields were lower, with the 10-year rate decreasing 4.7 basis points to 4.34% and the two-year rate dropping 6.8 basis points to 3.85%.

August West Texas Intermediate crude oil decreased 8.5% to $67.61 a barrel on Monday.

Iran fired missiles toward US military bases in Qatar and Iraq in response to recent American airstrikes that targeted Tehran's nuclear facilities, CNN reported, citing Iranian state media Tasnim.

The missiles targeting the Al Udeid air base were intercepted by Qatar's air defences, Al Jazeera reported, citing the country's defence minister.

The US airstrikes were conducted on Saturday amid the ongoing conflict between Iran and Israel.

In economic news, US private-sector output growth decelerated in June amid falling exports, according to S&P Global's ( SPGI ) flash purchasing managers' index.

US existing home sales unexpectedly rebounded in May even as prices reached a record high for the month, according to National Association of Realtors data.

"The relatively subdued sales are largely due to persistently high mortgage rates," NAR Chief Economist Lawrence Yun said. "Lower interest rates will attract more buyers and sellers to the housing market."

In company news, Tesla (TSLA) shares were up 8.2%, the top gainer on the S&P 500. The electric vehicle maker started offering rides in its Robotaxis on Sunday in Texas, with Wedbush Securities analyst Daniel Ives saying the trips exceeded his expectations.

Northern Trust ( NTRS ) shares jumped 8%. Bank of New York Mellon ( BK ) recently approached Northern Trust ( NTRS ) to express its interest in a potential merger, The Wall Street Journal reported Monday, citing people familiar with the matter. The chief executives of the companies had at least one conversation, according to the report.

Super Micro Computer ( SMCI ) shares were down 9.8%, the steepest decline on the S&P 500, after the artificial intelligence server maker said it intends to offer $2 billion of convertible senior notes.

Gold increased 0.3% to $3,395.50 per troy ounce, while silver was up 0.7% to $36.27 per troy ounce.