Warren Buffett echoed Charlie Munger's criticism in his annual letter, that the stock market has become increasingly "casino-like." Buffett believes too many investors act as speculators rather than long-term investors focused on company fundamentals. The ease of online trading apps has made buying and selling stocks more akin to gambling, in Buffett's view. He warned young investors especially to remember brokerages profit most from high trading volumes, not necessarily helping clients.