The short answer: "It's no fun being in front of an oncoming train."
The slightly longer answer:
At today’s closing price of $222.29, Netflix is trading at 75.0x trailing EPS of $2.96. In more than 12 years of managing money professionally, we can’t recall an instance in which we paid more than 20x our estimate of normalized, current year earnings for any stock – and this has worked very well for us – so we won’t be buying Netflix anytime soon. But just because we don’t think it’s a good long doesn’t make it a good short.
Why We Covered [Value Investing Letter]