Foreign Exchange Asymmetric Requote Trap
The Formal Definition
A predatory execution practice utilized by retail foreign exchange dealing desks where client orders are rejected and 'requoted' at a worse price whenever the market moves in the client's favor, but executed instantly with full negative slippage whenever the market moves against them.
Asymmetric Requote Rule: If Market Moves Favorably (ΔP > 0) → Reject & Issue Requote at Higher Price | If Market Moves Adversely (ΔP < 0) → Execute Immediately at Inferior Price
Cole Barrett's Reality Check
The Unvarnished Bottom Line"Dealing-desk forex brokers use requotes as a one-way street. If you click 'Buy' and the currency pair surges in your favor during the millisecond it takes to process, the broker pops up a box saying 'Price has changed' and forces you to accept a higher price. But if the price drops while your order is processing, they fill you instantly at the worse price. Heads they win, tails you lose."
Interactive Simulator: Test the Math
Real-World Example: Scenario Breakdown
Examining the real numbers for: Placing a 5-lot market order on EUR/USD during an active London breakout session
| Execution Metric | Pure Agency ECN Broker (Pepperstone / IC Markets) | Offshore B-Book Dealing Desk |
|---|---|---|
| Fee / Rate | $3.50 per lot commission | $0.00 'commission-free' |
| Spread / Buffer | Raw interbank spread (0.1 pips); zero dealing-desk intervention | Quoted fixed spread of 1.5 pips; market moved favorably by 0.8 pips |
| Execution / Status | Market moved favorably by 0.8 pips during transmission; order filled at requested quote | Server intercepted order; issued 'Requote' pop-up 1.2 pips higher |
| Total Cost / Result | Transparent, unmanipulated execution | Suffered asymmetric execution manipulation by broker dealing desk |
How Brokers Weaponize This Term
Offshore B-Book brokers utilize virtual dealer server plugins configured to apply asymmetric execution filters, systematically rejecting positive slippage while passing 100% of negative slippage to the client.
Broker Evaluation Matrix
Cole Approves
Pepperstone / IC Markets: True No-Dealing-Desk (NDD) ECN execution connected to multi-bank Tier-1 liquidity providers with zero requotes and symmetric slippage policies.
Read Audit →Cole Flags / Avoids
Unregulated Offshore FX Desks: Operates internal dealing desks utilizing server plugins that issue continuous requotes on profitable scalping strategies.
View Trap Details →Frequently Asked Questions
What is the difference between a requote and slippage?
A requote halts execution and asks the trader to accept a new, different price before proceeding; slippage fills the order immediately at the next available market price without asking.
Why do ECN brokers never issue requotes?
Because ECN brokers do not make a market or take the opposite side of your trade; they route orders directly to an open liquidity pool where orders fill at prevailing market bids and offers.