Why is the ASX 200 going gangbusters today?

The ASX 200 is heading for its biggest day of gains in years. But why? Why is the ASX 200 going gangbusters today? You're reading a free article with opinions that may differ from The Motley Fool's Premium Investing Services. Become a Motley Fool member today to get instant access to our top analyst recommendations, in-depth research, investing resources , and more. Learn More It’s a sea of green on the S&P/ASX 200 Index (ASX: XJO) today. You haven’t heard that for a while, have you? In a welcome reprieve for frazzled investors, the ASX 200 is up a whopping…