%% You need a trading calender. Like IBKR gives away. Happy Hannukah /merry Christmas. NOT a stock tip
%% Google [search] IBKR Trading Calender. Or better yet open up an account with them; they tend to never take you off thier mail list LOL-NOT a prediction.You could enclose/mail a post paid envelope + ask for one[from Costa Rica]; or email + ask them for mailed 2019 trading calender-tell them you heard about them on elitetrader!! Happy Hannukah /merry Christmas.