Chip equipment maker MKS Instruments says it is investigating ransomware attack

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MKS Instruments, Inc. (NASDAQ: MKSI) Delayed: 319.78 +9.05 (2.91%)
Previous Close $310.73    52 Week High $54.73 
Open $315.42    52 Week Low $30.67 
Day High $325.24    P/E 477.28 
Day Low $313.11    EPS $0.67 
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