Novanta set to join s&p midcap 400; six flags entertainment to join s&p smallcap 600

New york , july 21, 2022 /prnewswire/ -- novanta inc. (nasd: novt) will replace six flags entertainment corp. (nyse: six) in the s&p midcap 400, and six flags will replace natus medical inc. (nasd: ntus) in the s&p smallcap 600 effective prior to the opening of trading on tuesday, july 26. archimed acquired natus medical in a deal that closed today.
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