From an article in the Financial Times, reposted from a post on the AMBA board, but not specific to AMBA.
“Had it not been for a small group of nifty companies, 2015 would have entered the history books as a terrible year for the US stock market. As it was, stocks were almost exactly flat, as were bonds and cash, meaning that US bonds and equities had their second-worst collective 12 months since 1995 — outstripped only by the disaster year of 2008.”
The “nifty” companies apparently being AMZN, Google, FB, etc.
By the way, second worst since 1995 means second worst in 20 years. I’m not sure why they didn’t just say that.