I agree, I got a free Mercedes-Benz stake at 0.199288 share. Utterly ludicrous figure. Even if there was a feature to round up to one share, that would be good but there isn’t as far as I’m aware (I suppose I could try buying 0.800712 but seems rather asking for it not to work properly).
I suppose the fraction of a fraction idea is a good one, and I do like the idea Dougal. If I get used to it, it might work for those shares I buy monthly, for example ETFs.