In the winter (like now), they are the same as Halifax, NS and as noted above are 1 hour ahead of NYC... BUT. in the spring and summer (after the spring forward time change) the DR is the same as NYC. Until the fall back time change in the Fall when they once again are the same as Halifax, NS and one hour earlier than NYC. Etc., etc., etc.
The Sortino ratio, named after Frank A. Sortino, measures the risk-adjusted return of an individual asset or a portfolio, as do the Sharpe and Treynor ratios. However, it only concerns itself with returns that fall below a user-specific minimum or required rate of return (minimum accepted return, or MAR).
The Sortino Ratio. In the last couple of installments of Fundamental Focus, we have discussed risk-adjusted performance measures, namely the Sharpe and Treynor ratios (these articles appeared in the Fourth Quarter 2012 and First Quarter 2013 issue, respectively, and are available online at ComputerizedInvesting.com).