The market’s disappointment around the Q2 earnings results from Charles Schwab (SCHW), the leading brokerage and banking company, triggered heavy downside in the company’s stock. SCHW plummeted more than 10% on July 16 after earnings, and ultimately ended last week down 17%, as a glut of low-yielding assets on its balance sheet weighed on results. However, insiders at Schwab took advantage of this slide in the share price, and loosened their purse strings to up their stakes in the company. With well-placed insiders loading up on stock at the same time the brokerage faces genuine fundamental co…