As it is so easy to buy/sell the ETF, and in effect the market, and so much money is controlled/advised by 'professional' advisers (even more subject to herd instinct) the moment the markets turn, or a light downtrend accelerates, will be when ETF investors rush to the exits - and the door will be awfully narrow.
No bubble in ETFs?
Woodford was German, just for one day
11 hours ago