Box Spreads (Lock Profit)

A box spread locks in a guaranteed profit by opening the opposite spread at the same strikes and expiration. If you have a Put Credit Spread (PCS), you lock profit by opening a Call Credit Spread (CCS) at the same strikes. If you have a CCS, you open a PCS. How it works: 1. You already collected premium from your original spread 2. You collect additional premium from the opposite spread 3. At expiration, one side will be assigned and the other expires — the settlement cost equals the spread width 4. Your guaranteed profit = total premiums collected minus the settlement cost In Tradez, click "Box Spread" from your campaign. The app pre-fills the correct opposite strikes. After boxing, the campaign shows as "Locked (Box Spread)" and capital at risk drops to $0 since the position is fully hedged.