API

Insighthread news api vs Zacks Investment Research

Pick Insighthread's News API if you want fact-only, source-linked events generated from SEC filings in under 90 seconds, with no buy or sell opinion. Pick Zacks Investment Research if you want its stock ratings, analyst consensus estimates, fundamentals, and institutional holdings data. The biggest difference is that Zacks is a ratings and research company with no dedicated news API, while Insighthread's product is a structured event feed.

Insighthread vs Zacks Investment Research: Side-by-Side

InsighthreadZacks Investment Research
What it isFiling-native News API for US-listed public companiesStock-research and ratings company; Zacks Data covers estimates, fundamentals, insider transactions, and holdings
Source of newsSEC filings only, parsed the moment they are filedNo dedicated news API; its one documented automated news role was supplying data to the Associated Press earnings project, with manual review of each release
OpinionsNone; fact-only summaries of roughly 50 to 60 wordsZacks Rank: Strong Buy to Strong Sell ratings built on estimate revisions
Source-linkingEvery event links to the SEC filing it came fromNot published
SpeedUnder 90 seconds from filing to APINot published
Event coverage34 event types across ten groupsEarnings only, in its AP partnership
PricingContact salesZacks Premium $249 a year; Zacks Ultimate $299 a month or $2,995 a year, retail subscriptions
Best forTeams that need facts, not forecastsIndividual investors who want ratings and estimates

Insighthread vs Zacks Investment Research: SEC Filings vs Analyst Estimates

Insighthread generates news events directly from SEC filings, turning an 8-K, Form 4, 13F, Form D, or S-1 into a structured, fact-only item in under 90 seconds.

Zacks Investment Research is fundamentally a stock-research and ratings company, not a filing-native news source.

Zacks Data's own product catalog covers analyst consensus estimates, fundamentals, insider transactions, and institutional holdings, but there is no dedicated news API comparable to Insighthread's structured event feed.

The one documented case of Zacks producing automated "news" content was its role supplying data for the Associated Press's earnings-story automation project with Automated Insights.

In that pipeline, Zacks staff manually reviewed each earnings release and entered the numbers into a structured file before the natural-language engine wrote the story, as reported by Poynter and TheWrap.

Even Zacks' own automated-content lineage has a human review step in the middle, not the straight-through filing-to-event pipeline Insighthread runs.

Zacks Rank Is Opinion, Insighthread Stays Fact-Only

Zacks Investment Research's flagship product is the Zacks Rank, a Strong Buy-to-Strong Sell rating system built on earnings-estimate revisions.

Zacks markets Rank #1 (Strong Buy) stocks as averaging roughly 23.89% a year since 1988 and claims a high headline success rate.

Independent spot-checks of live Rank #1 picks have found much lower short-window hit rates, with one tracked batch landing at 50% in week one, then 0% in each of the next two weeks.

Insighthread never issues a buy or sell opinion at all.

Every item is a fact-only summary of roughly 50 to 60 words, generated straight from the filing itself with no analyst judgment layered on top.

Zacks' Earnings-Estimate Edge Is Old News

Zacks built its reputation on tracking earnings-estimate revisions, a signal it says predicts near-term price moves.

Critics argue that edge has faded because analyst-estimate revisions are now widely tracked, disseminated instantly, and already priced into most fundamental research before a retail subscriber ever sees them.

Insighthread's signal comes from a different, far less crowded source: the SEC filing itself, parsed and delivered before most of the market has read it.

The Zacks Noise Problem: Emails You Can't Escape

Independent reviews of Zacks Investment Research skew heavily negative, with a 2.3 out of 5 rating on Trustpilot.

The most common complaint is volume.

Subscribers report daily "top pick" promotional emails, with one reviewer counting as many as 15 in a single day.

Multiple reviewers on PissedConsumer say the emails continue even after repeated unsubscribe attempts, sometimes restarting again weeks later.

That is the opposite of what Insighthread ships: one structured event per qualifying filing, with no promotional layer riding along.

Insighthread's Event Coverage Goes Far Beyond Earnings

Zacks' only real news-generation footprint, the AP earnings-story partnership, covers earnings releases and nothing else.

Insighthread covers 34 event types across ten groups, including mergers and acquisitions, insider trades, institutional 13F moves, credit ratings, and Form D offerings, not just quarterly earnings.

Every Insighthread event links directly to the SEC filing that generated it, so a subscriber can verify the claim at the source in seconds.

Zacks Pricing vs Insighthread's News API

Zacks sells directly to individual investors: Zacks Premium runs $249 a year, and Zacks Ultimate runs $299 a month or $2,995 a year.

That is a retail research subscription, not an enterprise data license, so it isn't a clean apples-to-apples comparison against Insighthread's API pricing.

What it does show is a difference in business model: Zacks charges individual investors for ratings and opinions, while Insighthread licenses a structured, source-linked event feed built for teams that need facts, not forecasts.

Coverage

Every material event. Every filing type.

From bankruptcy liquidations to insider trades — we monitor primary and secondary SEC filings so you don’t have to.

  • C-Level Change
  • Corporate Earnings
  • Credit Ratings
  • Earnings Revision Guidance
  • Deal Termination
  • Delisting
  • Dividends
  • Drug Updates
  • ESG
  • Equity/Debt Offerings
  • FDA Approval/Rejections
  • Geopolitics/Market News
  • IPO News
  • Legal Action
  • Loans/Revolvers
  • Insider Buy/Sell
  • Minority Stakes Deals
  • Trading Update
  • Name Change
  • New Projects/Ventures
  • Operations Update
  • Restructuring
  • Property Transaction
  • Regulatory Action
  • Shareholder Activism
  • Staffing/Adds/Cuts
  • Stock Buybacks
  • Mining and Exploration
  • Mergers and Acquisitions
  • Institutional New Position / Exit / Increase

Signal

Market impact, scored instantly.

Every event ships with a 5-bar impact signal. Your users see at a glance whether a filing is noise or a market-mover — no reading required.

  • Critical negative

    Chapter 7 bankruptcy, FDA rejection, delisting notice

  • Moderate negative

    Earnings miss, debt offering, legal action filed

  • Low / informational

    Name change, ESG disclosure, operations update

  • Moderate positive

    Insider buy, stock buyback, new institutional position

  • Critical positive

    FDA approval, M&A deal signed, earnings beat

import httpx

response = httpx.get(
    "https://api.insighthread.com/v1/events",
    headers={"Authorization": "Bearer YOUR_API_KEY"},
    params={"limit": 10}
)
events = response.json()

Response

200 OK
{
  "id": "evt_8k103_iobt_mar31",
  "ticker": "IOBT",
  "event_type": "Bankruptcy/Liquidation",
  "headline": "IO Biotech files Chapter 7, ceases operations",
  "primary_filing": "8-K (1.03)",
  "secondary_filing": "15-12B",
  "filing_url": "https://sec.gov/...",
  "impact": {
    "score": 4,
    "direction": "negative",
    "label": "Critical",
    "bars": 5
  },
  "published_at": "2026-03-31T14:22:08Z"
}
From SEC filing to API
<90s
Event categories
35+
Impact signal on every event
5-bar
SEC-sourced. Nothing scraped.
100%

Who it's for

Built for teams that read filings.

  • ChatGPT, Claude and Perplexity app icons on a marble wall

    AI & LLMs

    Ground every model in the most complete source-linked SEC filing feed.

  • Corner of a classic financial-district office building

    Hedge funds & asset managers

    Build proprietary signals on filing events other feeds miss.

  • Analyst at a desk with three monitors in a wood-panelled room

    Financial research platforms

    Eliminate coverage gaps across all 6,000+ US public companies.

  • Buy and Sell buttons floating over a concrete wall

    Trading & brokerage platforms

    Give users sub-90-second, filing-verified alerts they can act on, live and on demand.

Contact options

News API

Building with filings?

Get a live demo tailored to your data needs. Every item links to its SEC filing.

Use the form

Docs

Read the API reference.

Endpoints, the event schema and every filing type we parse.

Read the docs

The app

Want it as an app?

The same feed with AI chat, watchlists and insider trades.

See pricing

Book a demo

What's this about?

Trusted by

Sovereign FundsJanus HendersonPerplexity

FAQ

API questions.

How do I get access?

It’s an enterprise product, not self-serve. Book a demo and the team typically replies within one business day.