I expected Yahoo to have all existing tickers, yet when I grab the list of ETF tickers available through BestInvest, I see tickers like "EUN iShares STOXX Europe 50 UCITS ETF" however Yahoo shows this as being EUN.L.
Some tickers like "CMFP ETFX DJ-UBS All Commodities Forward 3 Month Fund" show up in Yahoo as something completely different in Yahoo.
And others like "FLEG UBS BBG SPGSCI Constant Maturity Composite Index Hgd GBP" don't show up even as being valid.
What's going on? I thought tickers would have a universal name and sites like Yahoo would provide me information for all.