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Futures & Market Mechanics

Order types and execution

Market, limit, stop-market, stop-limit and bracket orders each trade certainty of fill against certainty of price.

Leverage risk. Futures losses can exceed your margin deposit. Contract specs, margins, sessions and funded-account rules here are illustrative; verify current specifications with the exchange, your broker or the provider.

Choosing an order

Market: fills now at the best available price. Limit: your price or better, may not fill. Stop-market: becomes a market order at the trigger — fills, but price is not guaranteed. Stop-limit: becomes a limit at the trigger — price controlled, fill not guaranteed.

Bracket / OCO (one-cancels-other): attach a stop and a target to an entry so both exits are working immediately. Server-side vs client-side handling differs by platform; know which yours uses.

Measure slippage in ticks and convert with tick value. In fast markets, the book can be thin for a moment and stops fill several ticks away.

Worked example

Slippage on a stop (illustrative MES)

  1. Stop-market sell for 3 MES at 4,990.00. Fill at 4,989.00 = 4 ticks worse.
  2. Slippage = 4 ticks × $1.25 × 3 contracts = $15.
  3. Same slippage on 3 ES: 4 × $12.50 × 3 = $150.

Slippage is normal; budget for it in ticks per contract.

Common misconceptions

A stop-limit protects me better than a stop-market.

It controls price but can leave you in a runaway losing position without a fill.

My platform's stop is always held at the exchange.

Some platforms hold orders locally or on their servers; connectivity problems matter.

Checkpoint

A stop on 2 ES fills 3 ticks worse than planned (illustrative $12.50/tick). Slippage cost?