---
title: "Backtest Walk Forward"
method: GET
path: "/api/backtest/{ticker}/walk-forward"
tags: ["Backtest"]
---

# Backtest Walk Forward

`GET /api/backtest/{ticker}/walk-forward`

## Request

- Base URL: `https://api.xfinlab.com` (the document declares no server; this is the origin it was published from)
- URL: `https://api.xfinlab.com/api/backtest/{ticker}/walk-forward`
- Auth: none declared

2026-08-10 (P0 of the Quant Research Factory roadmap) -- out-of-
sample validation, see services/backtest_service.py's
run_walk_forward() docstring for the full methodology (N chronological
folds + a 70/30 in-sample/out-of-sample split + a heuristic
overfitting-risk flag).

## Path parameters

- `ticker` string, required

## Query parameters

- `strategy` string
- `period` string
- `n_folds` integer
- `lang` string

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/xfinlab/apis/xfinlab-api.md) · [All operations](https://skmtc.dev/xfinlab/apis/xfinlab-api/llms.txt) · [OpenAPI document](https://skmtc.dev/xfinlab/apis/xfinlab-api/revisions/205f85614bc6?raw)