1. API
  2. Earnings and expected move
  3. Post earnings drift

Earnings and expected move API, GET /post-earnings-drift/{ticker}

After NVDA gaps on earnings, does the move continue or fade?

Drift after the earnings gap over 1 to 20 days, split by gap direction. Returns the average drift after positive and negative gaps at several horizons, continuation and reversal rates, each past event with its drift path, and a signal with a rationale.

ProPlan and above, from $55/mo
1MCP tool that calls it
2026-09-08Sample captured from the live endpoint

The answer, in one call

Units first,
then the request.

Drift and gaps in percent.

Gap is the close-to-open reaction; drift is measured from the reaction-day open.

curlBearer token from Account, then API Access
curl -H "Authorization: Bearer avmcp_YOUR_TOKEN" \
     "https://apexvol.com/api/mcp/data/post-earnings-drift/NVDA"
Pythonrequests, nothing else
import requests

headers = {"Authorization": "Bearer avmcp_YOUR_TOKEN"}
r = requests.get("https://apexvol.com/api/mcp/data/post-earnings-drift/NVDA", headers=headers)
r.raise_for_status()
data = r.json()["data"]
print(data["avg_drift_positive_gap"])
In Claude, Cursor or ChatGPTthrough the MCP server, no code
You

Does NVDA keep going after an earnings gap or fade?

The assistant calls get_earnings_move_analysis and answers from the JSON below.

Tokens come with every paid or trial plan. Sign in and create one under Account, then API Access, or start a trial. Your ticker, your budget.

GET /api/mcp/data/post-earnings-drift/NVDA200, application/json, captured 2026-09-08
{
  "success": true,
  "data": {
    "avg_drift_negative_gap": {
      "0": 0.0,
      "1": -1.963,
      "2": -3.551,
      "3": -4.515,
      "5": -5.699,
      "10": -2.35,
      "20": -1.9
    },
    "avg_drift_positive_gap": {
      "0": 0.0,
      "1": -0.684,
      "2": -0.756,
      "3": -0.573,
      "5": -1.203,
      "10": 5.525,
      "20": 4.761
    },
    "events": [
      {
        "direction": "up",
        "drift": {
          "1": -4.575,
          "2": -3.158,
          "3": -4.623,
          "5": 0.206,
          "10": null,
          "20": null
        },
        "earnings_date": "2026-08-26",
        "gap_pct": 6.3,
        "surprise_direction": "beat",
        "timing": "AMC"
      },
      {
        "direction": "down",
        "drift": {
          "1": -1.902,
          "2": -2.116,
          "3": -3.147,
          "5": -3.813,
          "10": -6.454,
          "20": -4.835
        },
        "earnings_date": "2026-05-20",
        "gap_pct": -0.53,
        "surprise_direction": "beat",
        "timing": "AMC"
      },
      {
        "direction": "down",
        "drift": {
          "1": -4.164,
          "2": -1.3,
          "3": -2.616,
          "5": -0.834,
          "10": -0.937,
          "20": -7.376
        },
        "earnings_date": "2026-02-25",
        "gap_pct": -0.66,
        "surprise_direction": "beat",
        "timing": "AMC"
      }
    ],
    "signal": {
      "action": "NEUTRAL",
      "rationale": "No strong directional drift pattern detected."
    },
    "statistics": {
      "avg_20d_drift_after_down": -1.9,
      "avg_20d_drift_after_up": 4.761,
      "avg_5d_drift_after_down": -5.699,
      "avg_5d_drift_after_up": -1.203,
      "continuation_rate_20d": 63.6,
      "continuation_rate_5d": 75.0,
      "negative_gap_count": 5,
      "positive_gap_count": 7,
      "reversal_rate_20d": 40.0,
      "reversal_rate_5d": 0.0,
      "total_events": 12
    },
    "success": true,
    "ticker": "NVDA",
    "timestamp": "2026-09-08T07:49:48.203263"
  }
}

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.

NameInDefaultRangeMeaning
ticker requiredpathany covered symbolThe underlying, upper case. Use /search to check coverage.
quartersquery121 to 40How many reports.

Field by field

What each
number means.

statistics.continuation_rate_5d, continuation_rate_20d
How often the gap direction held.
avg_drift_positive_gap, avg_drift_negative_gap
Average drift per horizon by gap sign.
events[].earnings_date, gap_pct, drift
Per event.
signal.action, rationale
The read.

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 call https://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 carries Retry-After in seconds.
Errors
401 no or revoked token; 429 Retry-After seconds; 403 Pro plan required; 424 data 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_earnings_move_analysis by name. One URL, a sign-in, no token to paste.

Prompts that hit this endpointcopy one into Claude, Cursor or ChatGPT
You

Does NVDA keep going after an earnings gap or fade?

You

What is AAPL's 5-day drift after a positive earnings gap?

You

Show post-earnings drift stats for AMD.

More in the prompt library. Set the server up in Claude Desktop, Claude Code, Cursor, ChatGPT, VS Code, Windsurf or Gemini CLI.

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