US index futures reacted to more news from the Trump Twitter handle which created the price action we have seen so many times before. A rapid move in one direction followed by an equally dramatic move in the opposite direction not long after. It’s what we call the ‘souffle’ effect for this reason, and is one to watch out for in all markets as it offers terrific two way price action in a relatively short space of time. And of course, all confirmed with volume price analysis and the indicators.