-Do you think that Mr. Einhorn was/is right but was/is unable to wait long enough for his thesis to work out given the unusual preeminence of a population of momentum and price action investors and the larger proportion of passive indexing?
Yep. i would definitely think that he is or was right at least on some of the ideas. But he was/is too confident that he chose to profit from the thesis by shorting the 'bubble' stocks. To me, shorting is very difficult with timing, size, etc. It is probably better to try to profit in a different way.
-Have you considered that he may have been fundamentally wrong or that he may have overestimated his capacity to predict a shift in investor sentiment?
Yes, probably. I dont personally know david, but i feel like he probably overestimated his influence especially in the short positions. Several years ago whenever greenlight 13F filing is up, the long positions would jump the next day, and whenever DE discloses a short, the stock would tank. Those days are long gone now, but i dont know if he recognize that.
-What makes you say that bulls have total control of the market?
I think it is a natural result of bull cycle. How many successful high profile shorts we heard in the last two years? We had short positions that made perfect sense fundamentally but got taken private at a price that probably only happens with rates near zero. And then you have momentum traders, growth investors and passive indexing continue to push the growth/momentum stocks higher. AMZN almost doubled in less than a year from 500B to 1T. it is probably still undervalued per my barber and my realtor, and they are buying it. They are probably going to make money, but they are not buying it for any fundamental reasons.
I dont know if we are in a late stage of bull market, but i have seen more and more people care about price action or growth potential more than anything else, even in the circles of 'value investors'. I think until the trend changes, it is very hard to short a basket of stocks. And probably nobody knows when the trend would change.