He expects the dizzying hour-to-hour swings to continue. Uncertainty is still high, and many investors are still anxious to trade quickly. “To me, for the traditional investor,” he said, “this is one of those situations where you buy on weakness and close your eyes.”

The Nasdaq composite fell 35.41 points, or 0.3 per cent, to 12,795.55. On Monday, it closed 20 per cent below its record high. The Dow Jones Industrial Average fell 184.74 points, or 0.6 per cent, to 32,632.64. It earlier swung from a loss of 238 points to a gain of 585.

Small company stocks held up better than the broader market. The Russell 2000 rose 11.68 points, or 0.6 per cent, to 1,963.01.

Already high oil prices have pushed the average price of a gallon of gasoline in the country to a record high. Biden said he hopes to limit the pain for Americans, but he acknowledged that the ban will increase gasoline prices.

“Defending freedom is going to cost us as well,” he said.

Biden also said he understood many European allies may not be able to make similar moves, because they are much more dependent on Russian energy supplies. European nations have said they plan to reduce their reliance on Russia for their energy needs, but filling the void without crippling their economies will likely take some time.

“Markets just need time to digest things and they were credibly shocked when it (the invasion) happened,” said Kristina Hooper, chief global market strategist at Invesco. “It’s not a surprise that the E.U. is not going in with the U.S. on this, and that is certainly a positive for oil, but we also have to recognize that this is changing rather quickly.”

The U.S. ban on Russian oil imports is the latest move by governments and companies around the world to squeeze Russia’s finances following its attack of Ukraine. All the penalties raise questions about how high prices will go not only for oil but also for natural gas, wheat and other commodities where the region is a major producer. That’s in turn adding more pressure to the already high inflation sweeping the world, cranking up its hold on the global economy.

It’s also making an already difficult path for the Federal Reserve and other central banks around the world even more treacherous. They’ve been hoping to raise interest rates enough to push down high inflation, but not so much as to cause a recession.

“This geopolitical risk has essentially reduced some of the Fed’s policy risk and they are far less likely to make a policy error this year,” Hooper said. “The Fed does recognize this risk to U.S. policy and will tread more carefully.”

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All the uncertainty has led to particularly wild trading for commodities, where challenges for supplies are colliding with strengthening demand as the global economy comes back from its coronavirus-caused shutdown.

Trading in nickel was suspended Tuesday on the London Metal Exchange after prices doubled to an unprecedented $US100,000 per metric ton.

Nickel is used mostly to produce stainless steel and some alloys, but increasingly it is used in batteries, particularly electric vehicle batteries.

Russia is the world’s third-biggest nickel producer. And the Russian mining company Nornickel is a major supplier of the high-grade nickel that is used in electric vehicles.

The yield on the 10-year Treasury note, which is used to set interest rates on mortgages and many other kinds of loans, rose to 1.84 per cent from 1.75 per cent late Monday.

AP

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