Bug introduced in 10.3.0 and fixed in 10.3.1
Retrieving data using
FinancialData became more unreliable in the last couple of months, but simply retrying was enough to finally get the data. Now it seems to be nearly completely broken in Mathematica v10.3 under Windows 10. However, it is still working fine in v9.0.1.
FinancialData["SPY", "Price"] FinancialData["^VIX", "Price"]
Is this malfunction reproducible with your v10.3 installation or is it limited to mine?
With what settings can I make retrieving data using
FinancialData in v10.3 working and more reliable?
in version 9.0.1 and
in version 10.3.
*Data functions seem to be affected, too. For example
However, after a couple of retries it worked, showing some initializations. In such a situation
FinancialData also does work. Unfortunately, after restarting Mathematica it failed again and again.
I don't witness any problems using
Entity["Financial", "^VIX"][EntityProperty["Financial", "Last"]]
Deleting the pacletSiteData_10.pmd2 file, as described in the comment by FredrikD provides a temporary workaround. It is enough to restart the kernel after deleting that file, but unfortunately after another kernel restart retrieving data is broken again.