Simboli https://www.investopedia.com/terms/s/stocksymbol.asp#:~:text=A%20stock%20symbol%20is%20an,related%20to%20the%20company%20name. I titoli vengono identificati da diversi simboli. Questi simnboli sono anche chiamati token. https://finance.yahoo.com/quote/BGN.MI/history?p=BGN.MI