Volatility has increased in global markets amid growing concerns over the ongoing war with Iran. The price of crude oil rose to almost $100 per barrel, while stock markets around the world fell. A sharp decline was also seen in the American stock markets. The S&P 500 index fell 1.5 percent and the market again saw big swings after a few days of relative calm. The Dow Jones Industrial Average fell 1.6 percent, while the Nasdaq Composite lost 1.8 percent. Meanwhile, there was maximum movement in the oil market. The price of Brent crude at one time reached $ 101.59 per barrel. The impact was also seen in the bond market. Treasury yields rose as investors feared rising inflation and fewer interest rate cuts by the US Federal Reserve.