Because of company buy backs. If the stock price is hugely undervalued, the companies just start to buy their own stock back and go private. If there is a 30% difference between the future and the index, there has to be some kind of arbitrage that would lock the favorable price in.
And I am not sure such a huge difference could exist, because of arbs.
I think then, anything could exists.But if 1930 scenario would show up
Oh damn.
It's so easy to slip and fall into the predictions game (and its so alluring)
Il pas on this one
