eToro lets traders buy Contracts-For-Difference (CFDs) on ETFs, stocks, indices, commodities, cryptocurrencies*, and forex. *Cryptocurrency CFDs are not available to UK retail traders. CFDs are contracts between a broker and a trader that are based on the difference in value for a particular...
In an investments course I took a while back, we worked the solution for the case where we had a basket of three stocks to choose from, in Excel. Obviously, this solution wasn’t really scalable outside of the N=3 case. When asked about extending N to an arbitrary number, the behind...