Indian-American investor Deedy Das revealed that he tested billionaire Michael Milken's 'India-born CEO' theory. Milken earlier said he buys a US company's stock if it replaces a US-born CEO with an India-born CEO. Das said the approach would've given 50x returns on investments in the last 15 years while recording 30% annual compounded returns, compared to S&P 500's 14% returns.