As a new Pro user, one of my drivers for MarketXLS is the hf_functions. The hf_function calls provide an opportunity to reduce my overhead in dealing with financial updates. However, there appear to be some issues with the hf_functions.. The financial data for a large number of US stocks are returning errors on the hf_function call. I would appreciate a fairly quick response as I must decide on keeping MarketXLS Pro or downgrading to only the 'real time' functions. And there is always the 'is it me or the program?" issue with new users of programs. The attached spreadsheet has the tests that I ran against some US traded stocks. The primary issue is the returned errors, i.e. blank cells based on an IFERROR response. The financial data is blank over the entire 20 year period called for some 200 of the 350 stocks. Standard data requested, e.g. EPS, Shares Basic, Shares Diluted, PE ratio, EV, FCF and Book. I have also provided tabs of independent quarterly financial data for three stocks for the hf_function data called. GWW where MarketXLS returned reasonably accurate data. NDSN and XOM where limited to no data (errors) were returned. A secondary issue is the speed. I hope this will improve. The spreadsheet is not the most efficient, i.e. it took 5 hours to populate seven hf_function calls for each of some 350 stocks over a 20 year quarterly period (some 200,000 hf_function calls). The data feed was between 1K and 2K bps over the five hours for the update during the trading day. (Only MarketXLS running and MS admin background limited to < 100 bps. I generally download data at a 5+ MBps during the trading day and greater after hours. But as this type of spreadsheet would only be updated once per quarter and overnight after hours, I am not overly concerned about the how long it takes. Another 'bothersome' issue is that Excel needs to recalculate the entire spreadsheet, including function calls, when any edits are down to calculations in the spreadsheet, i.e. another 5 hours for an update. But this can be resolved by linking to the MarkXLS spreadsheet rather than doing non-MarketXLS calculations in the MarketXLS historic financial data spreadsheet. A key learning for this new user is make sure the Stop Auto Refresh box is ticked. Thank you in advance for clarifications and resolution.