Duan Yongping simplified Buffett's "Three Filters" into one sentence: first ask if the business is something even a fool can manage, then check if the price is low enough to sleep peacefully. At the end of 2023, he increased his holdings in Apple and reduced Tesla, not because the cars are bad, but because Musk "has too many side jobs," and he's worried Musk will bring the rocket temperament to the factory.
That same year, he set his sights on BYD, saying "Vertical integration is like Apple's ecosystem factory version," using batteries, motors, and vehicles as a single line to control costs,
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