I opened a buy stop order at price 42870 for US30. It was triggered at 42991, a massive 121 points difference! Even more ridiculous is that my order then TP at 42964.1! This is the first time I've seen such a ridiculous trade execution and I've tried numerous brokers. When I bring this up for them to check, their compliance provided the standard reply of slippage due to high market volatility or news release and won't compensate me.