Replying to this post, because I, too, was trying to figure out which ticker symbol to use for the Coda Stocks Packs.
I found this useful overview, published and updated daily by IEX (ie the provider of the financial data behind Coda’s Stocks pack):
Here, you can search for your desired corporation, read out the corresponding stock ticker, paste it into your Coda doc, and receive the current stock price within your doc.
Hope this is useful!
Nina