- API
- Stock analytics
- Relative value
Stock analytics API, GET /relative-value/{ticker}
Is NVDA's IV rich or cheap relative to SPY and its sector?
IV percentile versus SPY and the sector ETF with mean-reversion z-scores. Returns the IV ratios to SPY and the sector ETF with their one-month and one-year averages, percentiles, z-scores, sigma bands, a signal and the ratio time series.
The answer, in one call
Units first,
then the request.
IVs in percentage points; ratios unitless; percentiles 0 to 100; vrp in points.
Ratios use 30-day IV. The signal compares the current ratio to its one-year distribution.
curl -H "Authorization: Bearer avmcp_YOUR_TOKEN" \
"https://apexvol.com/api/mcp/data/relative-value/NVDA"import requests
headers = {"Authorization": "Bearer avmcp_YOUR_TOKEN"}
r = requests.get("https://apexvol.com/api/mcp/data/relative-value/NVDA", headers=headers)
r.raise_for_status()
data = r.json()["data"]
print(data["signal"])Is NVDA IV rich or cheap versus SPY?
The assistant calls get_ticker_analytics and answers from the JSON below.{
"success": true,
"data": {
"avg_opt_volume": 3290793.0,
"best_etf": "XLK",
"correlation": {
"beta": 1.93,
"etf_1m": 0.52,
"etf_1y": 0.27,
"spy_1m": 0.49,
"spy_1y": 0.41
},
"earnings": {
"days_to_next": null,
"implied_move": 4.8,
"implied_move_sigma": 6.0
},
"hv20d": 44.92,
"iv30d": 33.05,
"market_cap": 5561054100000.0,
"momentum": {
"chg_1m": 5.05,
"chg_1w": 5.86
},
"percentiles": {
"own": 12.0,
"vs_etf": 48.0,
"vs_spy": 62.0
},
"price": 228.45,
"ratios": {
"iv_etf_ratio": 1.44,
"iv_etf_ratio_avg_1m": 1.94,
"iv_etf_ratio_avg_1y": 1.28,
"iv_hv_ratio": 1.03,
"iv_hv_ratio_1m": 0.91,
"iv_hv_ratio_1y": 0.9,
"iv_spy_ratio": 2.78,
"iv_spy_ratio_avg_1m": 2.71,
"iv_spy_ratio_avg_1y": 2.37
},
"sector": "Technology",
"sigma_bands": {
"mean": 2.6624,
"sigma_1_lower": 2.3332,
"sigma_1_upper": 2.9916,
"sigma_2_lower": 2.004,
"sigma_2_upper": 3.3208
},
"signal": "CHEAP",
"skew": {
"slope_pctile": null
},
"ticker": "NVDA",
"timeseries": [
{
"date": "2025-09-05",
"iv_etf_ratio": 1.83,
"iv_hv_ratio": 1.18,
"iv_spy_ratio": 2.77
},
{
"date": "2025-09-08",
"iv_etf_ratio": 1.81,
"iv_hv_ratio": 1.13,
"iv_spy_ratio": 2.7
},
{
"date": "2025-09-09",
"iv_etf_ratio": 1.81,
"iv_hv_ratio": 1.12,
"iv_spy_ratio": 2.71
}
],
"vrp": -11.87,
"z_scores": {
"etf_ratio_z": -0.2152,
"spy_ratio_z": 0.3573
}
}
}Every response is wrapped as {"success": true, "data": {...}}. Lists in the sample are cut to a few rows so it fits on a page; the shape is exactly what your code receives.
Parameters
Bounded,
and the bounds are stated.
Out-of-range numbers are clamped to the documented range, never silently changed to something else. A missing required field returns 400 with the reason.
| Name | In | Default | Range | Meaning |
|---|---|---|---|---|
ticker required | path | any covered symbol | The underlying, upper case. Use /search to check coverage. | |
days | query | 252 | 20 to 1000 | History length for the series. |
Field by field
What each
number means.
signal- RICH, CHEAP or NEUTRAL versus the market.
ratios.iv_spy_ratio, iv_spy_ratio_avg_1y, iv_etf_ratio- The ratios.
z_scores.spy_ratio_z, etf_ratio_z, percentiles- How stretched.
timeseries[]- The ratios through time.
Access, limits, errors
Before the
first call.
- Plan
- Pro Pro and above. Tokens are issued to paid and trial accounts from $55 a month; each endpoint follows the tier of its web feature. An endpoint above your plan answers 402 and names the plan it needs.
- Auth
- Bearer token, prefix
avmcp_, created under Account, then API Access. Shown once, hashed at rest, rotates in one click. Always callhttps://apexvol.com, never www. - Limits
- 60 requests a minute and 1,000 an hour per token, plus a monthly allowance by plan. Every response carries the remaining counts in
X-RateLimit-*headers; a 429 carriesRetry-Afterin seconds. - Errors
401no or revoked token;429Retry-After seconds;403Pro plan required;424data feed unavailable, retry. The full list with payload shapes is on the errors page.- Since
- API 1.0. Units, bases and timestamps follow the conventions shared by every endpoint; changes are logged in the API changelog.
- Machine-readable
- This page as Markdown, the family as one file, the whole API as llms-full.txt or OpenAPI 3.1.
The same data, in plain English
Ask for it
in an MCP client.
Connect the ApexVol MCP server and the assistant calls get_ticker_analytics by name. One URL, a sign-in, no token to paste.
Is NVDA IV rich or cheap versus SPY?
YouHow does AAPL's IV compare with the tech sector ETF?
YouShow the IV-to-SPY ratio history for TSLA.
More in the prompt library. Set the server up in Claude Desktop, Claude Code, Cursor, ChatGPT, VS Code, Windsurf or Gemini CLI.
Included with
every paid plan.
From $55 a month, tier-matched: your token queries the data your plan includes and Pro unlocks the full surface.
Real market data, not a sandbox. See it live on AAPL.