yours is time based ( 5minutes or whatever per candle) If you use volume based (x number of contracts per candle), then you will see ' better ' pattern.
Many times these funny tall bars out of nowhere are the result of some kind of economic data/ news announcement at that time. Thats why I really recommend all serious traders to check a good, complete economic calendar at the beginning of the day, and also to run a market squawk service during your trading day.
See for yourself..... EUR/USD - 6E 1 minute vs ES 1 minute EUR/USD - 6E 1 Minute vs EUR/USD - 6E 1000V constant volume bars
Never is a very strong word to use. I've seen this happen many times in the Emini ES futures. Yet, we could be looking at different things on your chart considering you did not highlight the price area you're tallking about on your chart. Yet, the overall chart...strong up movement and then sideways price action...if that's what you're talking about...very common on the Emini futures during high volatility trading conditions....less common (but it does happen once in awhile) during low volatility trading conditions. Also, don't forget, it can do the same for the inverse price action (strong down movement on increasing volatility and then sideways price movement). If you're talking about that in reference to a specific time frame...traders could be seeing it on a different time frame that you typically do not look at. Did you meant both doing the same similar like price movement at the same time on the same time frame as if they would have "high correlation" price movements ??? wrbtrader
Someone could probably find out if that spike and subsequent up move in the Euro occurred at the time when Trump was dumping on the FED for wanting to raise interest rates, basically signaling that he wants a weak dollar to win his trade war.
Of course, but the "pay back" is inflation....which is not good given the stagnant real-wages in the USA. Stagnant real-wages is the most important economic issue right now. Cheap overseas labor continues to wreck havoc with American wages....and Trump has failed on "fixing" this.