Oanda is a ECN forex broker and with Oanda, you can even trade with 100 currency units. Also, there is no minimum deposit with Oanda.
They have no commission except their spreads.
Even with ECN brokers, your order will not reach to the interbank market, its possible only with STP where the minimum deposit should be at least $25,000. With ECN brokers, every client makes a deal with another one where in market makers, traders trade against the broker directly.
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