Finviz Scraper

Screen stocks by technical and fundamental criteria, analyze heat maps, and review insider trades on Finviz. Built on spider-browser .

Get started Docs

target
finviz.com: success rate
99.9%: latency
~4ms

Quick start

Extract data in minutes.

finviz-scraper.ts

import { SpiderBrowser } from "spider-browser";

const spider = new SpiderBrowser({
  apiKey: process.env.SPIDER_API_KEY!,
  stealth: 2,
});

await spider.connect();
const page = spider.page!;
await page.goto("https://finviz.com/screener.ashx?v=111&f=cap_largeover,fa_pe_u20");
await page.content(10000);

const data = await page.evaluate(`(() => {
  const stocks = [];
  document.querySelectorAll("table.screener_table tbody tr[valign='top']").forEach(el => {
    const ticker = el.querySelector("td:nth-child(2) a")?.textContent?.trim();
    const company = el.querySelector("td:nth-child(3) a")?.textContent?.trim();
    const sector = el.querySelector("td:nth-child(4)")?.textContent?.trim();
    const marketCap = el.querySelector("td:nth-child(7)")?.textContent?.trim();
    const pe = el.querySelector("td:nth-child(8)")?.textContent?.trim();
    const price = el.querySelector("td:nth-child(9)")?.textContent?.trim();
    if (ticker) stocks.push({ ticker, company, sector, marketCap, pe, price });
  });
  return JSON.stringify({ total: stocks.length, stocks: stocks.slice(0, 20) });
})()`);

console.log(JSON.parse(data));
await spider.close();

ready to run · spider-browser · TypeScript

Fetch API

One endpoint for finviz.com.

Structured JSON from finviz.com with a single POST. AI-resolved selectors, cached on the first call.

POST /fetch/finviz.com/

TickerCompanySectorMarket capP/EPrice

Try it Fetch docs

cURL

curl -X POST https://api.spider.cloud/fetch/finviz.com/ \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"return_format": "json"}'

Python

import requests

resp = requests.post(
    "https://api.spider.cloud/fetch/finviz.com/",
    headers={
        "Authorization": "Bearer YOUR_API_KEY",
        "Content-Type": "application/json",
    },
    json={"return_format": "json"},
)
print(resp.json())

Node.js

const resp = await fetch("https://api.spider.cloud/fetch/finviz.com/", {
  method: "POST",
  headers: {
    "Authorization": "Bearer YOUR_API_KEY",
    "Content-Type": "application/json",
  },
  body: JSON.stringify({ return_format: "json" }),
});
const data = await resp.json();
console.log(data);

Extraction