I didn't see any evidence backing up their estimates nor any number that represent how many former S&P 500 companies go out of business. The studies I could fin

I didn't see any evidence backing up their estimates nor any number that represent how many former S&P 500 companies go out of business. The studies I could find listed some of the companies that fell out of the S&P500 and AFAICT most of them still exist. I would be careful about taking McKinsey's carefully crafted quotes and projections at face value. 'Disappeared' is intentionally vague. They also intentionally use age of a company when talking about the past and tenure on the S&P500 when talking about the future to make the numbers seem more dramatic[1]. It's part of their sales pitch - "it's harder than ever to run a company so you should really hire a consulting company to save you". [1] https://www.mckinsey.com/~/media/McKinsey/Industries/Electric%20Power%20and%20Natural%20Gas/Our%20Insights/Traditional%20company%20new%20businesses%20The%20pairing%20that%20can%20ensure%20an%20incumbents%20survival/Traditional-company-new-businesses-VF.ashx https://www.mckinsey.com/~/media/McKinsey/Industries/Electri... (page 4)