A long CFD and a short CFD on the same instrument may carry different overnight charges even when their notional values match. The discrepancy comes from how brokers fund positions, source hedges, and apply their own pricing margins, rather than from the direction of the chart alone.
A Forex and online CFD trading broker typically publishes financing terms separately from dealing spreads. Comparing those terms requires more than checking whether a rate carries a positive or negative sign.
Broker Markups Can Apply on Both Sides of the Trade
Long positions commonly incur a financing charge based on a reference interest rate plus the provider’s markup. Short positions may receive a credit based on that benchmark minus a markup, or pay a charge when the resulting rate is unfavorable.
For example, a hypothetical benchmark of 4% with a 3% broker adjustment could produce a 7% annualized long charge and a 1% annualized short credit. A larger adjustment could eliminate the short credit altogether.
Published rates should identify the reference benchmark, the broker adjustment, and whether negative financing credits are passed through or converted into charges.
Share Borrowing Costs Can Make Short Positions More Expensive
Short exposure to individual equities can involve additional costs beyond interest-rate calculations. When a broker hedges a short CFD by borrowing shares, limited lending supply can make that borrowing expensive.
A heavily shorted company or a stock involved in a takeover can attract unusually high borrow fees. Some providers pass these charges through separately, while others incorporate them into an instrument-specific financing rate.
A short CFD can therefore cost more to hold than a long CFD even when prevailing interest rates might suggest the opposite. Check whether borrow charges are variable, how frequently they are updated, and whether the broker can change them while a position remains open.
Overnight Charges Can Erase a Modest Price Gain
Take a hypothetical long CFD covering 800 shares of a telecommunications company at $25, representing $20,000 in initial notional exposure. Assume a constant annualized financing rate of 9%, charged on that notional amount using a 365-day convention.
Over 30 chargeable days, financing totals approximately $147.95: $20,000 multiplied by 9%, then by 30/365. If the share price rises to $25.15 and the position closes there before other charges, the $120 gross trading gain becomes a net loss of about $27.95 after financing.
Now suppose an equivalent short position would incur 2% annualized financing rather than receive interest. Its 30-day charge would be approximately $32.88 on the same assumed notional value. Equal exposure does not imply equal holding costs.
Actual calculations may use daily changing notionals, different day-count conventions, or separate adjustments for nontrading days. A quoted annual percentage is only the starting point.
Currency Funding Can Reverse the Expected Direction of Payments
Foreign-exchange CFDs introduce two interest-rate components. The cost of maintaining a position depends on the currencies bought and sold, their funding rates, and the broker’s adjustment.
A Forex and online CFD trading broker may quote a debit on both long and short sides of a currency pair, particularly when the interest differential is small relative to its markup. The fact that one currency offers a higher policy rate does not guarantee that the corresponding CFD position earns overnight income.
Instrument-specific swap tables matter more than a simplified comparison of central-bank rates. Also establish whether the published figures are expressed as percentages, points, or cash amounts per contract.
Rollover Calendars Can Concentrate Charges on Particular Nights
Financing is not always posted as an identical daily amount. Depending on the instrument and provider, one rollover may account for several calendar days because of weekends or settlement conventions.
A position opened shortly before a designated rollover can incur a larger charge than another held for a similar number of trading hours. Holidays can alter the schedule further.
The important comparison is the full expected holding period, not merely the rate displayed beside the order ticket. Identify the rollover cutoff in the broker’s server time and the nights carrying multiple-day adjustments.
Before opening a CFD position, obtain both long and short financing quotations for the exact instrument. Calculate charges over the intended holding dates using the broker’s day-count method, borrowing fees, rollover calendar, and current notional value, then compare the result with the price move needed to cover those costs.