As per agreement with Finance Denmark, NASDAQ OMX is responsible for collecting, calculating and publishing the Tomorrow/Next interest rate as of 23 November 2015. The daily Tomorrow/Next interest rate can be found on the NASDAQ OMX website.
Finance Denmark has the overall responsibility for the Tomorrow/Next interest rate. Rules for fixing the Tomorrow/Next interest rate can be found at Finance Denmark's website. The latest rate and turnover can be found at Finance Denmark's website.
Historical interest rates and turnover can be found at Danmarks Nationalbank's StatBank. The last update is 20 November 2015 (trading date 19 November 2015).