What do you mean? I think we all do, to some degree. Are you referring to trading based on a fundamental announcement on, say, GDP, NFP, or CPI? Or trading based on an analysis of fundamental economic expectations (e.g., things are sucking more in US so short it now and see where it goes in six months)? I know the later approach cost Warren Buffett and Bill Gates several hundred million dollars each, so would not recommend it.
