It’s not surprising that fintech company Mastercard (MA) has earned a spot in the equity portfolio of famous investor and philanthropist Warren Buffett’s holding company, Berkshire Hathaway (BRK.B). Currently, MA holds a 0.5% weight in the legendary Berkshire portfolio. Founded in 1966, Mastercard has made a name for itself in the global payments industry, serving over 210 countries and territories. Mastercard has seen rapid growth in recent years, owing to the growing global adoption of digital payments. There are numerous strong players in the fintech industry, including Visa (V), Block (SQ)…