There are a lot of good responses, but another is that these companies are all expected to pay dividends, do buybacks or liquidate some time between now and the

There are a lot of good responses, but another is that these companies are all expected to pay dividends, do buybacks or liquidate some time between now and the end of the universe. Every stock contains that promise, or a chance of it, supplying the ultimate justification for a nonzero price.