https://www.cnbc.com/2018/12/18/alan-greenspan-has-a-new-warning-for-investors-when-markets-turn-run-for-cover.html
Alan Greenspan has a new warning for investors: 'Run for cover'
- Greenspan tells CNN the bull market is over, pointing to how stocks have fumbled in recent days.
- Markets could still go up, Greenspan says, but "at the end of that run, run for cover."