I guess I see a descending triangle, given the flat bottom running along what I imagine is VWAP. However, as Matt also said... Given the support also provided by VWAP, which had been tested and proven several times, this was a very strong set up. You could call it any number of things: a descending triangle, a VWAP break, a bull flag, an ABCD pattern, a 3-bar play on the 15 min chart... I'd look closer at the fact there was strong buying followed by confirmation of VWAP support and then a spike in buying volume right before you entered. Altogether, very good stuff, well done!