unstated costs on etrade cfds

CFDs are not quite what they appear to be - at least in the case of Man Financial/ETrade's product:

1. You pay interest on the rising value of your stock - not on the amount originally borrowed. (This is a first in my experience.) So if you borrow cash to buy a $10,000 holding, and after six months the holding's value rises to $15,000, you are now paying interest on $15,000.

2. You pay interest on the full value of the holding - not just the proportion you borrowed. E.g. if you borrowed 90% to buy OXR, you nevertheless pay interest on 100%.

3. The broker pays you interest on cash held, but it's usually a fairly miserable amount, because that equity will only be a fraction of the value of the holdings (on which you pay them interest).

4. Brokers such as ETrade keep information on costs as scattered and opaque as possible, presumably so clients won't work out how much these things are costing them. For example nowhere on the ETrade website - nor
on the website of their CFD base provider, MAN - is the interest rate clients pay given. It is said to be "the Man Base Rate", that's all - not very helpful. Nor is it especially clear that clients pay interest on the full holding (100%) and also on its rising value.