Back and Forward: replay a trade's earlier states

Added or removed a leg and want to see how the trade looked before? The ◀ and ▶ buttons step Back and Forward through the recorded states of the selected trade. They are on the Options Analysis toolbar (just before the TLOG button) and on the Trade Log window.

Keyboard: Alt+Left for Back, Alt+Right for Forward, in the Options Analysis window and in the Trade Log (Ctrl+[ and Ctrl+] work too).

It is a simulation. A step only ticks or unticks the fills in the Trade Log, exactly as if you had clicked the Select checkboxes yourself, and the Options Analysis (positions, risk graph, margin) follows. Nothing is saved, no order is sent, and the trade file and your account are not touched. While a past state is shown, a red SIMULATION banner appears on the Options Analysis toolbar and on the Trade Log. Step Forward to the last state, and the live selection returns and the banner disappears.

Related:

• Rewind (replays market data and the position as it stood at a past time)
• The Trade Log (TLog) (Select, Timeline, snapshots, reports)
• Keyboard shortcuts

What is recorded

You do nothing to record a state. Just before SOAP2 changes a trade's log (a model is committed, executions are added or converted, or the Trade Log window is saved), it keeps a checkpoint of the trade's executions (and of the model legs on the grids at that moment).

Checkpoints are kept for 30 days, up to 20 per trade, in Trades\<account>\History\<trade> inside your SOAP2 data folder. A state identical to the previous one is not recorded twice. SOAP2 tidies this folder by itself when it starts: it removes the history of a trade you deleted, and of an archived trade once nothing has been recorded for 30 days.

Using Back and Forward

• Back first records the state you are in now, then shows the one before.
• Forward shows the next recorded state. It is greyed out when you are already at the latest, which is the live state.
• Hover a button to see where you are in the history (time, what happened, number of executions).
• Fills that did not exist yet at the chosen moment are unticked; fills that existed are ticked. A fill that has since been deleted from the file cannot be shown, and the status line says how many.
• Expired legs stay unticked, as they are by default.
• A real change to the trade (a commit, a conversion, a save) ends the simulation and returns to the live selection.
• Back and Forward do nothing while Rewind or CBOE playback is active; resume Live first.
• It works the same on every account type, LIVE included, since nothing is rewritten.

Limitations

• The Options Analysis model legs are not changed by Back/Forward; only the Trade Log ticks (and so the positions) are.
• Ticking or unticking a row yourself in the Trade Log while a simulation is shown changes the selection but not the banner.
• History starts at the first change made after this feature was installed: a trade that has never been changed since has nothing to go back to, and Back stays greyed out.
• New and lightly tested: please report anything odd with Send Feedback under the SOAP menu.

Go back to the main help page: SOAP2 Help Guide

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