NASDAQ - Bearish Megaphone Pattern???

Almost posted this earlier today but the hard test of the resistance had me questioning my analysis. At 3:38 it looks like it is retreating and the bears successfully held. The flat top resistance and lower lows make me think this is a bearish megaphone (wedge) and we may see a noticeable correction to the downside. After such a strong push by the bulls only to be rejected means that this correction may be noticeably larger and should break the major support line from March lows. Breaking that support could mean a larger correction is coming in the next days or weeks.