Asset Management Group Inc. increased its stake in shares of iShares Core S&P 500 ETF (NYSEARCA:IVV – Get Rating) by 3.1% in the 4th quarter, Holdings Channel reports. The firm owned 30,294 shares of the company’s stock after buying an additional 899 shares during the period. iShares Core S&P 500 ETF accounts for approximately 2.7% […]