What is the highest stock return ever?

The highest stock return ever recorded is attributed to Berkshire Hathaway, which has delivered an astonishing average annual return of around 20% since Warren Buffett took over in 1965. Over that period, the company's stock price has increased exponentially, making it one of the most successful investments in history. Additionally, companies like Amazon and Apple have also seen remarkable returns, with Amazon's stock increasing over 100,000% since its IPO in 1997. However, specific "highest returns" can vary based on the timeframe and criteria used for measurement.