reference · Order execution
Bid–Ask Spread: Price, Pips and the Cost of Crossing
Calculate a bid–ask spread in price units, pips and money, distinguish it from commission and slippage, and compare quotes without double-counting costs.
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Clear filtersreference · Order execution
Market Depth and Order Books: Read Size Beyond the Best Price
Learn how an order book shows price levels, calculate an example volume-weighted fill, and understand why visible depth cannot guarantee execution.
Read resourcereference · Order execution
Market, Limit and Stop Orders: Which Condition Controls the Trade?
Compare market, limit and stop orders using one price scenario, including execution uncertainty, trigger rules and the records needed to verify a fill.
Read resourcereference · Order execution
Orders, Deals and Positions: Reconcile Requests with Exposure
Distinguish order instructions, executed deals and resulting positions using a partial-fill ledger, account-mode context and uncertainty checks.
Read resourcereference · Order execution
Price Limits and Circuit Breakers: What Can Happen to an Open Order
Distinguish price limits, trading halts and price banding with an example boundary, and check order and position behavior when normal execution is interrupted.
Read resourcereference · Order execution
Price Tick Grids: Why a Correctly Formatted Price Can Still Be Invalid
Validate prices against a tick increment, compare rounding directions for a limit order, and separate price formatting from stop-distance and execution rules.
Read resourcetool · Order execution
Slippage Cost Calculator for Buy and Sell Transactions
Convert the signed difference between planned and actual fill prices into increments and account-currency cost for a linear quantity model.
Open calculatorreference · Order execution
Stop-Limit Orders: Two Prices and the Risk of No Fill
Understand a stop-limit trigger and limit price with a gap example, and learn why controlling price can leave a position open.
Read resourcereference · Order execution
Time in Force: GTC, Day, IOC and FOK Without Mixing Their Roles
Distinguish order lifetime from filling policy, compare a partial-quantity example, and verify expiration, cancellation and actual fills.
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