Downgrading Cameco & Denison to Underperform - Credit SuisseDowngrading Cameco and Denison to Underperform: Due to a below consensus uranium price forecast based on our cataloguing of nuclear reactor retirements and potential additions, which drives a view for uranium over-supply into the late 2020s, longer than the current consensus view for an early to mid 2020s market re-balancing.