---
title: "Do suppliers follow their big customers?"
method: GET
path: "/_api/research/customer_momentum"
tags: ["Research & open data"]
---

# Do suppliers follow their big customers?

`GET /_api/research/customer_momentum`

## Request

- Base URL: `https://shadowalpha.online`
- URL: `https://shadowalpha.online/_api/research/customer_momentum`
- Auth: none declared

Daily adaptation of Cohen & Frazzini (2008) on SEC customer links: suppliers react on the same day as a customer's ≥3σ shock, but the post-event drift is not significantly larger than for random unlinked suppliers.

## Response `200`

Study results.

- object

---

[API](https://skmtc.dev/shadowalpha/apis/shadowgraph-api.md) · [All operations](https://skmtc.dev/shadowalpha/apis/shadowgraph-api/llms.txt) · [OpenAPI document](https://skmtc.dev/shadowalpha/apis/shadowgraph-api/revisions/1b62d5453408?raw)