U.S. Treasury yields experienced an upward swing on Monday, as investors and Wall Street analysts closely monitored the latest developments amidst escalating tensions in the Middle East. Geopolitical events continue to exert significant influence on global financial markets.
The yield on the benchmark 10-year U.S. Treasury note, a crucial indicator for government borrowing costs, climbed over 5 basis points to settle at 4.594%. The 2-year Treasury note yield, which is often seen as a bellwether for short-term Federal Reserve interest rate policy, also gained more than 3 basis points, reaching 4.211%. Concurrently, the longer-dated 30-year Treasury bond yield traded more than 5 basis points higher at 5.115%. (For clarity, one basis point is equivalent to 0.01%, and it's important to remember that bond yields and prices move in opposite directions.)

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The rise in yields coincides with intensified military actions in the Middle East. U.S. Central Command confirmed on X that it completed its ninth consecutive evening of strikes against Iran on Sunday, at 10 p.m. ET. These three-hour operations specifically targeted Iranian military command centers, air defense and coastal surveillance sites, maritime capabilities, and missile and drone launch sites. Centcom's stated objective for these operations was to further diminish Tehran's ability to attack commercial vessels and civilian mariners transiting the Strait of Hormuz.
The scope of U.S. strikes has reportedly widened in recent days, with Tehran reporting hits on civilian infrastructure, including the Bonji desalination plant, which allegedly cut off water supplies to approximately 10,000 people.
In a retaliatory move, Tehran has launched fresh attacks across the Gulf, targeting various sites in neighboring countries such as Bahrain, Saudi Arabia, and Jordan. On Monday, the Kuwaiti army announced that its air defense systems successfully intercepted "hostile" drone attacks believed to have originated from Iran.
This current surge in borrowing costs follows a period last week where Treasury yields had eased. That dip was largely attributed to investors digesting a raft of economic data that suggested the U.S. economy continued to withstand inflationary pressures, partly exacerbated by the ongoing conflict in Iran. Last week's key economic indicators included cooler-than-expected producer and consumer price data, coupled with lower-than-forecasted U.S. jobless claims for the week ending July 11, which came in at a seasonally-adjusted 208,000.
Looking ahead, investors will be keenly awaiting the latest S&P Global Flash U.S. PMI report, scheduled for release on Friday. This report provides a crucial measure of the economic health of American manufacturing and services sectors.
— Anniek Bao and CNBC Staff contributed to this report.