Wave .iv Extension

From a trading statndpont last night was frustrating. I didn't trade because I couldn't figure out the movement. From a technical sandpoint it was exciting. That was the first expanding triangle  have called in real time and I was able to notice it quickly. I thought I would have a hard time with it and it was actually the first thought I had, as it was forming. That was satisfying. Anyway from the chart below you can see it is completing the Y leg of wave .iv. Now this could extend and become more complicated to make a Z leg tripple zigzag but there is no way to know. But a break of 1.6250 should eliminate this possibility. So when it breaks 1.6250 the short has resumed for perhaps as much as 600 pips.