Not sure, if this has already been asked or if I'm just overlooking a simple switch (such as for dividends or splits or something), so I'd like to ask for help:
I'm very aware of the fact that there can be occasional errors in historical data downloaded from Yahoo (or any other of the free data providers, for that matter). But I just noticed that the downloaded CSV file contains different data than that very same data, when displayed on screen. As an illustration, please check:
which displays historical data for the Airbus group (from Nov 14, 2007 to Jan 14, 2008). And then please download the CSV file that supposedly should contain that very same data (the link on top of the page gives this link):
Note that from Nov 28, 2007, onwards the data in the downloaded CSV seems to be completely wrong. Has anyone else experienced this? Am I doing anything wrong?
Any help would be much appreciated.