I've see some orders, buy and sell, placed on stocks where you would swear blind that they're are props, only to see them smashed.
That said, I think even blind Freddy could see that last week's big buy orders on PDY were props, but the same cannot be said for the current buy side. I do think that some traders use reverse psychology when placing unusually big buy and sell orders, i.e. they 'fool' people into thinking that they're props but are in fact genuine orders.
The dilemma is, how can you pick them???
PDY Price at posting:
2.0¢ Sentiment: Buy Disclosure: Held