Regulatory Risk

You invested in GOOG at a zillion dollars a share, believing that it'd be a good, steady, stable earner "forever." But you didn't count on the mooning they did of the Republican Administration to have been taken with such umbrage.

The company is famously Democrat-friendly, and was sued for being so politically oriented by its own non-Left employees. Anyway, the company ended up having all kinds of issues with politicians who sought out myriad ways in which the company could be hassled, and eventually regulated. "Should we force it to be broken up?" "Should we make search a competitive market?" "Should we force more diversity on their hiring practices?" Lots of ways to create regulation, and in all of that FUD (fear, uncertainty, doubt), the stock price tumbled badly, as the regulatory risks hadn't been fully discounting in the pricing of the no-longer-a-gadjillion-dollars-a-share stock price.