Why are Coles (ASX:COL) shares defying the ASX 200 selloff today?

The S&P/ASX 200 Index (ASX: XJO) has had a pretty awful start to the week this Monday. At market close, the ASX 200 is down a nasty 2.10% to 7,248 points. That puts the ASX 200 at roughly 5% below its most recent all-time high of 7,632.8 points that we…