In order to more fully understand this, it's necessary to go back a while.
This issue has been in decline for quite some time. Without novelizing this, note the volume at "1" which indicates substantial buying interest (you know it's buying interest because the decline comes to a temporary halt). Then note the volume at "2". Even though price is lower, so is the level of activity, the "volume". Sellers are backing off and buyers are able not only to halt the decline but reverse it. At "3", sellers re-enter the market, which results in a higher level of activity. Buyers, however, have the upper hand which is illustrated by the rise in price. Finally price breaks its downtrendline on decent volume/activity and has now come back a bit to test it. Stay tuned.
So that's where you are with regard to buyers and sellers. Whether or not you enter here is up to you, but at least you should have a better idea of what to look for, where to buy, where to put your stop. (If you don't, do a search using my name and "volume".)
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