---
title: "Get Market Pressure Signal"
method: GET
path: "/api/signals/advanced/market-pressure"
tags: ["Trade Signals"]
---

# Get Market Pressure Signal

`GET /api/signals/advanced/market-pressure`

## 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/market-pressure`
- Auth: HTTP bearer

Market Pressure Index — forward-looking "coiled spring" detector.

Answers: *is the market loaded to move, and which way will it break?*
Distinct from `squeeze_setup` (reactive, fires AFTER momentum starts) and
from `range_break_imminence` (regime-switch inside chop) — this signal
measures how much DEALER HEDGING DEMAND is loaded into the book right
now and which direction that hedging flow will run when any catalyst
fires.

**Logic highlights** (`src/signals/advanced/market_pressure.py`):
- Magnitude is MULTIPLICATIVE across four pillars (all must be present):
  - **Compression** (C): geometric mean of wall pinch
    `1 − (call_wall − put_wall)/spot` and flip-proximity Cauchy kernel
    `σ²/(σ² + d²)`; net-GEX regime multiplier amplifies short-gamma
    and damps long-gamma.
  - **Hedging vector** (H): session-weighted blend
    `α·vanna + (1−α)·charm·charm_amp` (α ramps 0.7→0.3 open→close);
    +20% alignment bonus when vanna and charm share sign, dealer-DNI
    gate mutes the response when dealers are flat.
  - **Flow asymmetry** (F): 0.6·premium_skew + 0.4·smart_money_skew,
    magnitude-gated on total premium flux.
  - **Vol tension** (T): `√((1 − iv_rank) · vol_squeeze)` where
    `vol_squeeze` maps the 10-bar/60-bar realized sigma ratio to [0, 1];
    modulates loading 0.5×–1.0× via a floor.
- `loading = 100 · C · H_mag · F_mag · (0.5 + 0.5·T)`  (0–100).
- Direction is a weighted vector: `0.45·H + 0.40·F·F_mag + 0.15·dealer`,
  with a ±30% confidence multiplier based on how many of those three
  inputs agree.
- `score = sign(direction) · √|direction| · (loading/100)` ∈ [-1, +1].
- **Triggered when `loading ≥ 50` AND `|direction| ≥ 0.20`** — both
  magnitude AND directional clarity required.

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

**Returns:**
```json
{
  "score": 56.0, "clamped_score": 0.56, "direction": "bullish",
  "triggered": true,
  "signal": "bullish_pressure",
  "loading": 78.2,
  "direction_value": 0.91,
  "label": "Critical",
  "playbook": "Coil at the limit. Expect violent resolution to the upside. Take the directional trade with reduced size on stops; cut all counter-pressure exposure.",
  "confidence_mult": 1.3,
  "context_values": {"...compression, hedging, flow, tension, dealer, weights..."},
  "score_history": [{"score": 56.0, "timestamp": "..."}, "...up to 90"]
}
```

- `score` — [-100, +100]; sign = pressure direction, magnitude tracks
  both loading and directional clarity (`sign·√|direction|·loading`).
- `signal` — `"discharged"` | `"bullish_pressure"` |
  `"bearish_pressure"` | `"loaded_neutral"`.
- `loading` — [0, 100]; multiplicative pressure magnitude
  (Compression × Hedging × Flow × tension-modulator).
- `direction_value` — signed [-1, +1] directional vector after the
  agreement-based confidence multiplier; *not* a clamped score.
- `direction` — `"bullish"` | `"bearish"` | `"neutral"` (sign of
  `direction_value`, using a 1e-6 deadband).
- `label` — `"Discharged"` (0–24) | `"Building"` (25–49) |
  `"Loaded"` (50–74) | `"Critical"` (75–100).
- `playbook` — trader-facing guidance string matching the label and
  direction.
- `confidence_mult` — [≈0.7, ≈1.3]; reward/penalty applied to
  direction when the hedging/flow/dealer inputs agree or fight.
- `triggered` — `true` when `loading ≥ 50` AND `|direction_value| ≥ 0.20`.

**Trader interpretation:**
- `label == "Discharged"` → no actionable loading; trade existing setups.
- `label == "Building"` → tighten stops on counter-pressure trades;
  prepare directional templates.
- `label == "Loaded"` → stop fading; scale into continuation entries
  on first confirmation (VWAP reclaim, wall break, flow spike).
- `label == "Critical"` → take the directional trade with reduced
  size on stops; cut counter-pressure exposure.
- A `score = 0` does NOT mean "neutral market" — it means a pillar
  collapsed (no walls, no greeks, no flow) or directional forces are
  perfectly cancelling. Treat as "this lens is dark."

**Page design.** Half-circle gauge (0–100 `loading`) colored by
`direction`, with the label badge below. Four-bar stack of the
sub-component magnitudes (compression / hedging / flow / tension).
A small `confidence_mult` chip (e.g. "1.3× — all 3 agree" or
"0.8× — flow fighting"). Playbook text under the gauge. Flip the
card's accent between "fade-safe" (neutral) and "ride-the-break"
(loaded) at the 50-loading 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)