Thanks! In common with other trading platforms, eToro charges overnight/weekend fees (aka rollover fees) on CFDs (Contracts for Difference). As you probably know, these are high-risk, leveraged products. They are not something I choose to invest in personally.

AFAIK, most (possibly all) eToro smart portfolios do not incorporate CFDs. Having checked quickly today, the only one I could find which might was Active Traders, which duplicates the trades of some top traders on eToro. There is a warning about the volatility of CFDs in the description of this portfolio, which suggests to me that it might. No other smart portfolio description I could find included a CFD warning, so I doubt very much that in these portfolios you would be exposed to CFDs or have rollover fees deducted. But obviously, you are always free to ask a question on the relevant page of the eToro website before investing.