Warren Buffett has built Berkshire Hathaway (BRK.A -0.76%) (BRK.B -0.69%) into one of the biggest companies in the world and he's done so using a simple trick in some of his biggest businesses. Buffett gets to use billions of dollars in float to invest in stocks, where he's one of the best investors in history.

Travis Hoium shows what float is in Buffett's own words in this video.

*Stock prices used were end-of-day prices of Jan. 19, 2024. The video was published on Jan. 21, 2024.