Dear group  weeks ago I noticed there could be a malfunction on the package yahoo_get . I was wrong. It works fine. After intensive trials with many ISP and hardwares it seems: a) I had a problem on the firmware of my modem-router, making the line instable; b) there is an unclear API download policy from Yhaoo. I mean may be there are some hidden limitation about downloading, which infringement lead to a kind of ban.  But be careful, the ban is silent, so is not easy discover it. Some people over internet says there is a limit of the tickers number (200?)  for each interrogation. It seems to me only a part of the problem.  I think there is a problem of speed too: if the interrogation speed is "too high" it seems to be considered malicious from the Yahoo firewall. If somebody argue 200 tickers are a lot of data i remember the SP500 index is made of 500 tickers. So at the moment  - I splitted the tickers list in many groups and  - I slowed down the speed of the script with this loop  loop for (r=1; r<1000; r+=1)         print r endloop  I ask  - if somebody can suggest my a different option to slow down the script because my way lengtens too much the output script. - do you have some others suggestions or experiences? Knowlegde to share: finding the tickers  of major stock exchange indexes is not easy. Now I got them, so if  somebody wants to share these lists is welcome. Regards Guido