The ToS Foxchase Bundle is ZWAP plus Extrinsic Divergence for Thinkorswim. Use them as context, not as a standalone entry/exit system.

ZWAP (Upper + Lower Study)
Colors candles LONG / SHORT / NEUTRAL from SPY VWAP plus an extrinsic-value z-score. A candle-coloring overlay like this (above/below VWAP, same idea) does not backtest as a profitable standalone system. You catch trends sometimes and you also catch pivots and reversals. It can help when paired with other context: exiting a trend you are already in profit on, or entering one you already have other reasons to be in. Neither Foxchase discretionary trading nor the algo uses ZWAP as the sole entry or exit.

Extrinsic Divergence v4 (Upper Study)
Highlights bullish and bearish extrinsic divergences, where option pricing is shifting ahead of SPY. That is one of the other context layers you can pair with ZWAP.

How they fit
ZWAP is a bias overlay, not a signal. Divergence is extra context. Together they are a workflow of context, not a complete automated 0DTE system.

Includes both ToS studies, framework guide, daily checklist, recommended settings, example charts, and free updates up to v2.0.

Educational use only. Not trading advice.