Itsallaguess wrote:vrdiver wrote:
Back in TMF days, this issue [the 'economic top-up sum'] came up several times.
I think it was Gengulphus who posted a handy formula that helps calculate what "economic" means, as that will vary depending on how much an investor is able to put into their HYP, as well as opportunity costs of not investing money.
I don't have it to hand, but hopefully he will be along to post it again?
Do you mean this one?
https://web.archive.org/web/20161111110 ... 44023.aspx
I tend to use £1000 as a useful 'minimum tranch size', taking into account stamp-duty and average on-line trading costs.
Cheers,
Itsallaguess
Spot on - thank you!