I only posted that because it was the first one that popped up on google. Here is a WSJ article from earlier this year...
When to Sell? Look at the HQ If a company moves to lavish headquarters, it’s often time for investors to get out. By Andy Kessler April 9, 2017 4:08 p.m. ET
Rising above the San Francisco skyline, a few short blocks from where Mel Brooks filmed the Hitchcock “Vertigo” spoof “High Anxiety,” is the 1.6-million-square-foot Salesforce Tower, soon to be the company’s new headquarters and the second-tallest building west of the Mississippi. As the stock market reaches dizzying heights, my thoughts turn to the toughest decision for investors: when to sell a stock.
I thought the HQ curse was pretty well known...I've heard people talk about it all the time. Obviously, it doesn't mean that every company that moves into a new HQ is going to see its stock tank, but there is some pretty strong history there that management teams get distracted and that they focus too much on building a grand HQ instead of focusing on the business.