As Tesla's (TSLA.O) stock price fell following a weaker-than-expected earnings report, investors poured into a leveraged exchange traded fund that bet on upside in the company's shares. According to Lipper data, the Direxion Daily TSLA Bull 1.5X Shares ETF (TSLL.O), the largest single-stock ETF for bullish wagers on Tesla's shares, witnessed net daily inflows of …