By STAN CHOE NEW YORK (AP) — Stocks around the world swung on Tuesday, oil prices rose sharply and the price of nickel surged so much that trading for it was shut in London, as the economic fallout from Russia’s invasion of Ukraine keeps rocking markets. The S&P 500 was down 0.8% in morning trading after earlier bouncing between gains and losses. It's coming off a three-day losing streak where worries