It is all BS imo. There is a guy in CNBC who always spits out companies with UOA every week. I believe he only brags about the winners and conveniently shoves the losers under the rug (and there are a lot of those)
I tend to agree here as for ER the data is mixed even when it shows to be directional, i don't trade ERs in general as i don't like trading binary events, to much lotto.