---
title: "Get Range Break Imminence Signal"
method: GET
path: "/api/signals/advanced/range-break-imminence"
tags: ["Trade Signals"]
---

# Get Range Break Imminence Signal

`GET /api/signals/advanced/range-break-imminence`

## Request

- Base URL: `https://api.zerogex.io` (the document declares no server; this is the origin it was published from)
- URL: `https://api.zerogex.io/api/signals/advanced/range-break-imminence`
- Auth: HTTP bearer

Range-break imminence — regime-switch detector between chop and breakout.

Fuses four orthogonal inputs into a 0–100 imminence score so the
dashboard can flip between *fade the range* and *follow the break*
without the operator reading four panels at once. Standalone detector,
not part of the MSI composite.

**Logic highlights** (`src/signals/advanced/range_break_imminence.py`):
- Skew extreme (30%): OTM-put vs OTM-call IV deviation vs baseline.
- Dealer delta pressure (25%): signed dealer net delta (explicit or
  rolled up from `gex_by_strike` delta-OI columns).
- Trap detection (25%): price pinned within ¼ of a 20-bar range
  extreme while flow accelerates *against* that extreme's fade.
- Volatility compression (20%): 10-bar / 60-bar realized sigma ratio.
- Directional bias = weighted avg of the three directional inputs;
  compression is directionless (adds magnitude only).
- Imminence = weighted sum of absolute sub-scores; `score` = signed
  direction × (imminence / 100).
- **Triggered when `imminence ≥ 65` (entering the Break Watch band).**

**Params:** `symbol` (default `SPY`). Returns 404 when no data exists.

**Returns:**
```json
{
  "score": -62.0, "clamped_score": -0.62, "direction": "bearish",
  "triggered": true,
  "signal": "bearish_break_imminent",
  "imminence": 72.4,
  "label": "Break Watch",
  "playbook": "Stop blindly fading lows. Only fade after failed breakouts/reclaims; start preparing continuation entries.",
  "bias": -0.58,
  "context_values": {"...skew, dealer, trap, compression, weights..."},
  "score_history": [{"score": -62.0, "timestamp": "..."}, "...up to 90"]
}
```

- `score` — [-100, +100]; sign = break direction, magnitude = imminence.
- `signal` — `"range_fade"` | `"bearish_break_imminent"` |
  `"bullish_break_imminent"` | `"break_watch_neutral"`.
- `imminence` — [0, 100]; composite break risk magnitude.
- `label` — `"Range Fade"` (0–39) | `"Weak Range"` (40–64) |
  `"Break Watch"` (65–79) | `"Breakout Mode"` (80–100).
- `playbook` — trader-facing guidance string matching the label.
- `triggered` — `true` when `imminence ≥ 65`.

**Trader interpretation:**
- `label == "Range Fade"` → fade extremes normally.
- `label == "Weak Range"` → still fade, but smaller size / faster targets.
- `label == "Break Watch"` → stop blindly fading; prepare retest trades.
- `label == "Breakout Mode"` + direction set → trade the retest of the
  broken level rather than fading back into the range.

**Page design.** Half-circle gauge (0–100) colored by direction with the
label badge below. Four-bar stack chart of sub-score contributions
(skew / dealer / trap / compression). Playbook text under the gauge.
Flip the card's accent color between "fade" (neutral) and "follow"
(break) colors at the 65-imminence threshold.

## Query parameters

- `symbol` string

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/zerogex/apis/zerogex-api.md) · [All operations](https://skmtc.dev/zerogex/apis/zerogex-api/llms.txt) · [OpenAPI document](https://skmtc.dev/zerogex/apis/zerogex-api/revisions/753b26bf0592?raw)