 Charles Schwab Investment Management Inc. reduced its holdings in Guaranty Bancshares, Inc. NASDAQ:GNTY by 10.5 during the second quarter, Holdings Channel reports. The firm owned 17,833 shares of the companys stock after selling 2,094 shares during the period. Charles Schwab Investment Management Inc.s holdings in Guaranty Bancshares were worth 462,000 at the end of the ... 