Trendline holding, but for how long?

A trend-reversal is all-but confirmed at this point, and the 200d MA lined up nicely to save day for the 500, but it appears to be bear-flagging and there's a lot of downward pressure, so how long will it hold? We could see a bounce up to the 10d MA before testing the trendline again, but with the 1d MACD still very bearish and the 50d MA is looking even more-so like it'll bounce off the 200d MA, I highly suspect there where be a full breakdown very soon. I included the 10d MA just because I found it interesting that it's been lined up almost perfectly with the channel trendline and has just broken to the other side of it. It just so happens that the next support level is around 2960ish, which is along the 3-year channel mid-line, so expect a bounce or short consolidation at that point before an attempt at the channel bottom. Over these 3 years, when the top of the channel is touched, there's a rapid correction to the bottom, which again lines up well with what we're seeing. There tends to be a retest of the center line and consolidation, but it'll be interesting to see, after another major correction, what the investor mentality is, but I'd suspect that we might see a final breakdown of the channel and ultimately a retest of March lows by September.