Kevin Green notes all the positive momentum he's seen in the SPX but says he's "getting nervous" as the index moves back toward its 50-day SMA. He believes bulls can reemerge by filling a gap. Wednesday's GDP print is what Kevin expects to be the biggest market moving event of the week, pointing to the Atlanta Fed's GDP expectations as something investors may not be pricing in. With four Mag 7 names reporting earnings this week, he also looks at the technical to keep an eye on.