Fixed or variable spread — which one to choose on forex?

Spread is Ask minus Bid in the same quote. Fixed and variable describe the tariff’s treatment of that difference; neither label alone determines the cheaper account or the execution route. Read the conditions, commission and contract size together. The examples below use hypothetical figures rather than a current ranking of providers.

Spread is a quote difference, distinct from a booked commission

For hypothetical EUR/USD Bid/Ask 1.0850/1.0851, the quote difference is one pip, with pip 0.0001. A full buy at Ask and immediate sell at unchanged Bid loses one spread before other charges. A later trade can have a different midpoint and exit spread; break-even therefore cannot be inferred from the entry spread alone. bid and ask — how SL and TP orders are executed explains the price side used to activate forex SL and TP.

The spread is built into the two executable sides of a quote; a separate commission is a different charge. Market conditions and the provider’s pricing method both matter. A provider can add a markup to underlying quotes, and a lower-turnover pair need not have one universally predictable spread multiple. Compare actual tariffs and observations rather than attributing the entire quote gap to one participant’s inventory risk.

Fixed spread: check the tariff’s conditions

A fixed-spread offering defines a quoted spread under specified contractual conditions. A hypothetical tariff might quote 1.5 pips, but the label alone does not establish an unconditional guarantee during news, rollover or abnormal markets. Read the applicable exceptions and execution terms; a spread label does not identify how every order is routed.

A stated fixed spread helps estimate the quote gap under the tariff’s conditions; it does not establish the entire trade cost or guarantee execution. Check exclusions for stressed markets. Depending on the execution mode, a changed quote can lead to a requote, rejection or slippage, which may be favourable or adverse.

Variable spread: check quotes and separate fees

A variable spread changes with the quotes available to the provider and may widen as liquidity changes. A hypothetical example could use 0.2 pip in one period and several pips in another; these are not verified current market averages. An ECN account label does not by itself prove who is your legal counterparty or whether each order reaches an external venue. Check the entity’s agreement, execution policy, commission and specification.

A variable spread can change with market liquidity, volatility and the provider’s quotation. The same clock hour or release need not produce a specific pip width. The spread widening on news guide discusses news-related widening; compare the actual entry and exit observations for your symbol and date rather than substituting an unsupported typical range.

The numbers: EUR/USD versus exotics

Convert the observed spread using the symbol’s contract size and quote increment. For an assumed 100,000-base-unit contract with a pip size of 0.0001 quote-currency units per base unit, one pip is 10 quote-currency units: USD 10 on EUR/USD, but TRY 10 on USD/TRY. Convert to account currency where needed. The same USD value does not apply to every major pair; USD/JPY uses a different pip convention and conversion from yen.

The pip-value calculation is only a conversion, not a tariff comparison. A fixed offering can cost more or less than a variable one at the requested size and time. Even an infrequent position can incur a material cost; a high trade count does not by itself establish which tariff wins. Use common assumptions, as in the minimum-commission diagram.

Spread is not the whole cost — add commission and swap

Compare all applicable charges rather than assigning commission to an ECN label. A tariff may charge per operation or volume, apply a minimum or include costs in the quoted spread. “From 0.0 pips” describes a minimum, not free trading or the spread on every request. Read both opening and closing fees before converting them to a round-turn total.

In a hypothetical round turn of 100,000 EUR, assume pip 0.0001 is USD 10, the quote midpoint stays unchanged and entry and exit spreads are equal. Tariff A uses 0.2 pip plus USD 7 total commission for both operations: USD 2 + USD 7 = USD 9. Tariff B uses 1.8 pips without commission: USD 18. Ignore slippage, financing and conversion. With strictly proportional commission and no minimum, A matches a no-commission spread of 0.9 pip; a minimum changes the result, as the diagram shows. If entry and exit spreads differ, midpoint-based spread cost is half of each spread, not their two full amounts. real cost of trading: spread versus commission explains the comparison and spread entry gives the definition. P/L from actual fills already contains the price effects.

Which model suits whom

The choice requires arithmetic at the actual volume and times. Add commission, financing and conversion where applicable, and compare execution and the provider’s legal terms separately. Frequency scales repeated costs; it does not convert a fixed or variable label into a universally better tariff.

• Fixed pricing can help estimate the quote gap within its stated conditions. Verify hours, instruments, exceptions and other charges. Predictability of spread does not freeze the fill price, guarantee a stop or make a higher total cost irrelevant for someone learning or holding for several days.
• Variable pricing requires observing the spread when the plan actually enters and exits. A time-weighted advertised average may differ from the spreads attached to those operations. Compare costs at the actual notional, including minimum commissions; a narrower spread need not make a small trade cheaper.
• Check the contracting entity’s authorization and the protections for your jurisdiction, product and client category. A familiar brand, regulator name or narrow spread is not by itself proof that the relevant account is covered. Cost and legal protection are separate parts of a provider comparison.

ESMA’s March 2018 announcement reported historical regulator analyses in which 74–89% of retail CFD accounts lost money. That range is not the current percentage for a particular provider and does not quantify how much spread caused those losses. Read the applicable entity’s current risk warning. For cost accounting, use the actual bid/ask fills and booked charges; do not subtract a spread already contained in those fills.

What to do tomorrow

1. Observe comparable quote windows. Save simultaneous Bid and Ask, timestamp, time zone, instrument and account type at planned entry and exit times. Record the difference between a minimum, time average and operation-weighted cost. Mark demo data: it does not prove identical live execution.
2. Calculate with common assumptions. Use the same notional, holding interval and rate units. Where the midpoint is unchanged, combine half the entry spread and half the exit spread, then add separately billed fees and financing. If comparing completed trades, start from actual fills and avoid deducting embedded spread or slippage again.
3. Verify the actual entity and permissions. Use the official register of the regulator applicable to the intended service and jurisdiction, matching the legal name and domain in the contract. FCA, CySEC or ASIC is not a universal three-regulator checklist for every reader. Authorization does not eliminate trading or counterparty risk.
4. Compare complete tariffs at the intended size. Include minimum fees and conditions for fixed quotes. A few weekly positions do not automatically favour fixed pricing, and many daily positions do not establish that an ECN-labelled account is cheaper. Choose from the computed costs and actual service conditions, not trade count alone.