PayPal (NASDAQ: PYPL) has been on a solid run so far this year, up 20% compared to the broader market's 5% gain. Investors have high hopes that the company can continue its winning ways, following several announcements that it's expanding its ecosystem with the acquisition of a slew of complementary companies -- snatching up four companies in just five short weeks.Investors will be looking for additional details when the company reports the financial results for its just-completed 2018 second quarter on Wednesday, July 25, after the market close.