Timeline

The timeline is the horizontal strip below the chart. It shows the time range you picked for your backtest and where playback is right now.

Try it — click, drag, scroll to zoom:

Reading the timeline

The ruler shows time labels — seconds to days — that adapt as you zoom.

• Blue line at the bottom — your selected interval, the range from your start date to your end date.
• Vertical blue line — the playhead, your current time in the backtest. It moves right as playback runs.
• Gray areas — time outside your selected interval, visible when you zoom or pan past it.

The Start and End pickers in the controls bar below the chart set this range.

Jumping in time

Click anywhere on the timeline to jump there, or drag to scrub through time.

Jumping forward

The backtest fast-forwards to the new time, and anything that would have happened in the skipped period — say, a take-profit or stop-loss triggering on a price move — executes exactly as if you had watched it play out.

Jumping backward

Going back is more interesting, because the future from this point is already known. Orders you placed or cancelled in the skipped time become pending events — set aside, not deleted — and a popup near the top of the chart shows how many are pending. Three things you can do next:

• Resume playback and do nothing. The pending events fire again at the exact same moments; once playback catches up, your account is back to the state it had before the jump.
• Delete the pending events from the popup. The backtest then behaves as if those orders and trades never happened.
• Place a new order or trade. This deletes the pending events automatically — you're on a new branch of the timeline.

Zoom and pan

Use the mouse wheel to zoom in and out — zoom is anchored under your cursor. Hold Shift and drag to slide the view left or right without jumping the playhead.

The curved-arrow icon resets the view to your full selected interval — start date on the left edge, end date on the right. Reset zoom only changes what's on screen; to restart the backtest, jump the playhead back to the start or begin a fresh session with + New.

Auto-follow

The target icon next to the timeline toggles auto-follow. When it's on, the view shifts automatically to keep the playhead visible during playback; when it's off, the view stays where you put it — useful for replaying one short moment without the view drifting away. Panning the playhead out of the visible area turns auto-follow off so it stops fighting your interaction; click the icon to turn it back on and snap the view to the playhead.

Tracks

Below the ruler you can stack extra rows — tracks — to overlay more context on the backtest: shaded ranges where a condition holds, markers at interesting moments, and the trades you made. Click the + (Add track) button in the timeline's right-hand header to open the Filters & Signals window and add them.

Track types

Trade events — a vertical tick at each of your trade actions: orders you placed or cancelled, and your fills. After a rewind, ticks ahead of the playhead turn gray and fire again as playback catches up — cancelling those future events removes them from the track.

Sessions — shaded bands over the hours a market session is open. Start from a preset — New York, London, or Tokyo — or build a custom session: give it a name, pick the weekdays, the start and end times, and the timezone (IANA, e.g. America/New_York). Session edits apply instantly.

Filter and signal tracks — outputs of your Filters & Signals scripts: filters shade time ranges, signals mark moments. Each track instance has its own label, color, and parameter values; you can add the same output more than once with different parameters to compare. Parameter changes re-run the script on StrategyTune's cloud, so you apply them explicitly with Apply & recompute.

Equity (strategy) — shades each stretch of time green or red by whether your equity gained or lost over it, for sessions that have statistics. Drawdown (strategy) — shades by severity: the deeper the drawdown, the stronger the color.

Managing tracks

• Open the Filters & Signals window via the timeline's + button — the top lists what's on the timeline; below it, search and browse everything addable.
• Each declared output of a script is addable as its own track.
• Click a row to preview its parameters and Add to timeline, or use the hover ＋ to add it with defaults.

Track rows

• Reorder — drag the grip at the left edge of a track's label to move the row up or down.
• ◀ ▶ jump buttons — step the playhead to the previous or next point of interest on that track: a session or filter boundary, or the nearest signal or trade event.
• Edit and delete — hover a row for the gear icon (opens the track's settings; system tracks only offer Remove) and the trash icon (removes the track from the timeline).