Identify the charging basis
Overnight financing is a charge or adjustment associated with holding certain positions beyond a defined cutoff. It may depend on direction, notional exposure, a reference rate, a markup and the number of chargeable days. These ingredients vary by product. A profitable price move can still leave a negative net result after accumulated costs, so distinguish gross market performance from the amount ultimately credited to the account.
Reconcile an actual charge
For a live position, record the instrument, size, direction and timestamps, then compare the agreement's formula with each statement entry. Check the cutoff time, weekend treatment and any currency conversion rather than assuming every calendar day is charged identically. FYLU has not published an operational financing schedule or calculator. Examples on its information site should be treated as educational arithmetic, not a quotation of a future account charge.