That sent the yield on the 10-year Treasury up to 4.43% from 4.36% late Thursday. Higher yields can tug down on prices for stocks and other investments, while making it more expensive for U.S. companies and households to borrow money.

FRANKFURT, Germany (AP) — Oil surged, stocks fell and investors sought safety in the U.S. dollar and government bonds Friday after Israel struck Iranian nuclear and military targets in an attack that raised the risk of war between the two countries and broader instability in the Middle East.

Rather, it is geopolitical factors—specifically, escalating tensions in the Middle East—that are unsettling markets and pushing prices higher.

“When Iran and Israel exchanged attacks previously, prices spiked initially but fell once it became clear that the situation was not escalating and there was no impact on oil supply,” he wrote ...

The strongest action was in the oil market, where the price of a barrel of benchmark ... the situation was not escalating and there was no impact on oil supply,” according to Richard Joswick ...