Early in March 2015, I predicted an uptrend of the Euro against the US Dollar , on the basis that the Dollar had risen too high. I sketched a rebound of EUR/USD potentially symmetrical to its previous downtrend (blue triangle). I offered the opinion that the Greek crisis would not prevent the rise of EUR/USD , because it was not about the Euro , but about the Dollar. Then came better news of the American economy and talk of an imminent end to ZIRP, possibly as early as Sep 2015. Rising American , while Euro clings to ZIRP would kill the EUR/USD rebound. All eyes were on Janet Yellen yesterday, with the expectation that rise would be indicated from September. Instead, she indicated a continuance of Zero for the present. As a result, EUR/USD spiked. However, in Europe the Financial Ministers meet today again with no end in sight to the Greek crisis. Today should see a reversal of yesterday's spike, even if temporary.