[yahoo-finance] How to get a complete list of ticker symbols from Yahoo Finance?

There is a nice C# wrapper for the Yahoo.Finance API at http://code.google.com/p/yahoo-finance-managed/ that will get you there. Unfortunately there is no direct way to download the ticker list but the following creates the list by iterating through the alphabetical groups:

        AlphabeticIDIndexDownload dl1 = new AlphabeticIDIndexDownload();
        dl1.Settings.TopIndex = null;
        Response<AlphabeticIDIndexResult> resp1 = dl1.Download();

        writeStream.WriteLine("Id|Isin|Name|Exchange|Type|Industry");

        foreach (var alphabeticalIndex in resp1.Result.Items)
        {
            AlphabeticalTopIndex topIndex = (AlphabeticalTopIndex) alphabeticalIndex;
            dl1.Settings.TopIndex = topIndex;
            Response<AlphabeticIDIndexResult> resp2 = dl1.Download();

            foreach (var index in resp2.Result.Items)
            {
                IDSearchDownload dl2 = new IDSearchDownload();
                Response<IDSearchResult> resp3 = dl2.Download(index);


                int i = 0;
                foreach (var item in resp3.Result.Items)
                {
                    writeStream.WriteLine(item.ID + "|" + item.ISIN + "|" + item.Name + "|" + item.Exchange + "|" + item.Type + "|" + item.Industry);
                }

            }
        }

It gave me a list of about 75,000 securities in about 4 mins.