First published by Money Metals here: https://www.moneymetals.com/news/2017/01/31/stock-market-highs-gold-001000

Dow 20,000 was ushered in with great fanfare. Everyone loves a bull market. Expecting stocks to go up forever, however, is a dangerous mindset to have as an investor. Recent history suggests that major milestones for the Dow should be viewed less as cause for celebration and more as warning signs.