 JPMorgan Chase Co. increased its position in shares of NetScout Systems, Inc. NASDAQ:NTCT by 19.6 in the 1st quarter, Holdings Channel reports. The firm owned 473,392 shares of the technology companys stock after purchasing an additional 77,455 shares during the period. JPMorgan Chase Co.s holdings in NetScout Systems were worth 11,206,000 at the ... 