2016-05-30 Markets closed: Memorial Day (observed)

Today the markets are closed in observance of Memorial Day.

geophf:1HaskellADay geophf$ ghci stock-market/trading-cal.hs

*Main> cal "stock-market/trading-cal.tsv" ~> tc

*Main> tc Map.! (read "2016-05-30")

Closed "Memorial Day - U.S."

TODO: This utility will be rolled up into Analytics.Trading.Data.Calendar