The most important thing is the S&P holding above its intraday low, says UBS' Art Cashin

Art Cashin, UBS director of floor operations, joins 'Squawk on the Street' to discuss the importance of a 3,860 S&P 500, what investors need to keep an eye on and what Cashin's seen from retail earnings this quarter.
Thu, May 19 202211:37 AM EDT