Spread or commission: which account actually costs you less?
Most traders pick an account by its sticker price. We break down EUR/USD round-trip cost on Standard vs ECN at three trading frequencies — the answer surprises most people.
The headline number isn't the real number
Two accounts can advertise wildly different costs and still produce the same monthly P&L hit. A Standard account quotes EUR/USD with no commission and a 1.0 pip spread. An ECN account quotes 0.0 pip raw spread plus $6 round-trip per lot. On paper they look like opposites — in practice they intersect at a very specific volume.
Round-trip cost on Standard is the spread cost only. On a 1-lot trade in EUR/USD, that's $10 if the spread holds at 1.0 pip. On ECN, the same trade costs you the spread (let's call it 0.2 pip during liquid hours, or $2) plus $6 commission — total $8. So at 1 lot per trade, ECN is already $2 cheaper.
Where the math flips
If you trade 0.1 lots, the picture changes. Spread cost on Standard scales with size — $1 round-trip — but the $6 ECN commission is fixed per lot, so it scales linearly too. The math is symmetric. The choice doesn't depend on size; it depends on liquidity timing.
During Asia session, EUR/USD spread on Standard often widens to 1.4–1.6 pips. On ECN it stays near 0.5 pip because raw market makers don't widen the same way. If your strategy fires off-hours, ECN's edge compounds quickly — sometimes 30–40% lower total cost over a month.
The decision rule
Trade fewer than 5 lots a month, mostly during London or NY hours? Standard is fine — you're paying for the simplicity, and it's not much. Trade actively, scalp, or run an EA that fires through Asia? ECN. Trade enough size that ECN Pro tier kicks in (1,000+ lots/month)? You're not reading this article, you're already on Pro.
The real cost lever isn't account type — it's slippage during news, which both account tiers experience. Read our risk piece on news execution before you size up.
