According to QCompounding, Warren Buffett began purchasing Berkshire Hathaway in 1962 at $7.5 per share and a single share is now worth more than $600,000, underscoring the scale of long-term compounding in this stock (source: QCompounding). According to QCompounding, using the move from $7.5 to at least $600,000 over roughly 63 years to the post date implies a minimum compound annual growth rate of about 19.6 percent, providing a concrete benchmark for evaluating multi-decade buy-and-hold performance (source: QCompounding; calculation derived from the stated prices and timeline). According to QCompounding, the author has compiled a free 60-page e-book summarizing key learnings from Berkshire’s journey, offering investors an organized framework to study compounding-driven equity returns (source: QCompounding).