Watch: If the S&P 500 breaks 4,000, it'll change a lot of charts, says UBS' Cashin (youtube.com)
Art Cashin, UBS director of floor operations, joins 'Squawk on the Street' to discuss why a 4,000 S&P support level could signal further selling, what traders are watching today and whether this week's inflation data will matter to equity markets.
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    Francisco Gimeno - BC Analyst Stocks have lost a lot, the worse since many months ago, and crypto matches this too. S & P have been under 4,000 support level for some days (today finally over 4,000). What does this mean if, as Cashin says, 4,000 as a support level may signal further selling? Well, we will see. As usual w (…more)