This is one of the setups which professional day traders look for on a daily base.
Leaning
"Leaning" is a label used by day traders. It refers to lean on a bid or deal. In other terms, if the bazaar has been ranging between 5 and it's currently trading 9 bid / suggest 10, traders who are abruptly at 8 and 9 are leaning on the 10s. They are eager that suggest will wait. If it looks like it's departure to go, they will try to buy 10s as they are leaving. Other traders are also looking to buy 10s because they know shorts are "leaning" on them. This means 10 will maybe be a good location to get the periphery. However, this is also a mark where big traders make moves.
A seller might be long 8s and be the proposal at 10. When it gets difficult bid at 9, he lifts his proposal at 10, then turns around, and bids 10 (this is called flipping) and the causes other traders instantly to buy at 11 and 12. Virtually no contracts trade at 10. In this position, the shorts are up the rivulet. They were looking to menace 1 or 2 ticks and now they are enforced to guard for a 4 or 5 tick debit. Other people who had no shot at 10s are untaken to buy 12s and 13s. This is why you must expect. If you think it's free to go, just buy the 10s. If you don't get them, you don't want to be buying 14s. 14 is where the guy who flipped is going to be selling. If you avoid it, you forget it.
By the way, usually these acne are not back or resistance levels on a chart. There is no expert object for someone to buy or plug there. You would never know traders are leaning on the assess save you know how to read the order emanate. And if you don't know traders are leaning on an estimate, you cannot take plus of that complex.