David is founder and CEO of Updata, which he founded in 1991. Updata now has technical analysis clients in over 60 countries with offices in London and New York. David is a member of the American Association of Professional Technical Analysts and holds the Master Financial Technical Analyst qualification awarded by the International Federation of Technical Analysts. He is a well known market commentator in the press and on finance TV. He is the author of Cloud Charts: Trading success with the Ichimoku technique.