fixed delta vols controls

delta level legend

Use the legend to control visible delta columns.

The legend also provides these controls:

• spot toggles the spot price line.
• Expiry rows hide or show one selected expiry.

update rate and smoothing

The live service publishes FDV data once per second. The pane applies a 30-second trailing arithmetic mean to each delta series.

ATM normalization

Select ATM norm to divide each smoothed delta IV by the smoothed ATM IV at the same timestamp:

normalized_iv = delta_iv / atm_iv

Use this view to compare skew shape without the level of ATM volatility.

days-to-expiration selection

Use DTE to choose one or more expirations. The selector includes:

• expiration rows
• weekly all
• monthlies
• quarterlies
• clear all

color settings

Open Colors, then expand FDV.

• Set a base color and line thickness for each delta.
• Set Gradient floor and Hue spread for the DTE color ramp.
• Set Put hue direction, ATM hue direction, and Call hue direction.
• Use Show with one delta to show or hide direct DTE labels when one delta is visible.
• Set Label size for direct DTE labels.
• Use the preview matrix to compare DTE palettes across all nine deltas.

For the time span and data reload, see shared time-series settings.

For mouse gestures, axis strips, and reference lines, see time-series chart navigation.

See also: fixed delta vols view → | chart navigation →