Correct me if I'm wrong, but the EMH doesn't guarantee there will be "the right amount" of buyers or sellers. There could be too few, in which case the asset c

Correct me if I'm wrong, but the EMH doesn't guarantee there will be "the right amount" of buyers or sellers. There could be too few, in which case the asset can be mispriced vs its true value. There could be too many, in which case the asset can be mispriced vs its true value. Both of these are often true, because equities don't trade in a vacuum. There are other asset classes. And limited amounts of buyers and sellers.