What is AltIndex?
AltIndex is an investment research platform that collects alternative data about listed companies and turns it into AI stock scores, picks and alerts. Its models weigh more than 10,000 alternative and financial data points per company, according to the company, covering Reddit, X, Instagram and TikTok mentions, web traffic, app downloads and reviews, LinkedIn headcount, job postings, insider and politician trades, news sentiment, analyst ratings and fundamentals. Each stock receives an AI Score from 0 (strong sell) to 100 (strong buy), refreshed daily.
AltIndex is operated by AltIndex LLC, as listed by TopAI.tools, and says more than 80,000 investors use it. The service runs as a web dashboard and as iOS and Android apps, and Pro members also get a developer API key and an MCP server for AI agents. The company publishes past pick results: its picks page claims a historical win rate of roughly 70% over six months, while its homepage cites 61% across all picks. These are AltIndex’s own unaudited figures, past results never guarantee future returns, and its disclaimer states the site does not contain financial advice.
Key Features
- AI Stock Picks: AltIndex AI Stock Picks flag a stock once the model’s confidence crosses a set threshold, with a stated 3 to 9 month outlook. Starter members see the top 25 picks and Pro members see all 200, updated daily.
- Daily AI Score: AltIndex’s AI Score rates each company from 0, a strong sell, to 100, a strong buy. The score refreshes daily as new alternative data arrives, giving you one number to compare stocks before reading the underlying signals.
- Alternative data signals: AltIndex tracks social mentions, web traffic, app downloads, app reviews, LinkedIn headcount and job postings for each covered company. The company describes these as the kind of signals Wall Street pays for, packaged for individual investors.
- Real-time stock alerts: AltIndex sends alerts when a company spikes in popularity, web traffic, insider activity or investor sentiment. Fortunly notes these arrive by email, push notification and the dashboard, so you can react without watching the screener all day.
- Insider and politician trades: AltIndex monitors insider transactions and trades disclosed by politicians alongside its other signals. Its newsletter, The Signal Brief, has covered Congress trades, which shows where people close to companies or policy are putting money.
- Portfolio AI Score: AltIndex grades your holdings when you upload a screenshot from your brokerage app. Each position gets a 0 to 100 AI score and the whole portfolio gets an overall score, which highlights weak holdings worth a closer look.
- AI Agent analyst: AltIndex includes a conversational AI analyst that answers questions about your holdings. It draws on live AI scores and alternative data, so you can ask why a score moved instead of digging through charts.
- Screener and Autopilot portfolios: AltIndex offers a stock screener covering more than 3,000 listed companies, according to Fortunly. The same review lists three Autopilot portfolios, including AI Top 10, a Reddit-themed basket and Robotics Infrastructure, plus an earnings calendar and comparison tools.
- Developer API and MCP: AltIndex sells REST API access from $19 per month, and its Developer API tier adds an MCP server for AI agents. Pro platform members get a developer API key and MCP access included, which suits people building their own dashboards.
Pros
- Hard-to-gather data: AltIndex packages alternative data that individual investors would struggle to collect themselves. TradeAlgo calls this its main advantage, noting that social, web traffic and app signals are difficult for a single trader to replicate.
- Published track record: AltIndex publishes its historical stock pick results rather than only showing selected wins. Fortunly lists this as a plus, since you can review past calls before paying, although the figures remain self-reported.
- Low entry cost: AltIndex offers a free account and a Starter plan at $199 per year, roughly $16.58 a month. Every paid plan carries a 14-day money-back guarantee, so testing the picks for a fortnight carries little financial risk.
- Simple 0 to 100 scoring: AltIndex condenses thousands of data points into one daily AI Score per stock. TradeAlgo describes the interface as friendly for non-technical traders, so beginners can compare stocks without building their own models.
- Mobile alerts: AltIndex runs iOS and Android apps with push notifications and sync across devices. Alerts follow you away from the desk, which helps swing traders who only check positions a few times a day.
- Developer access: AltIndex includes an API key and MCP server in the Pro plan. Developers can feed AI scores and signals into spreadsheets, trading scripts or AI agents rather than copying numbers from the dashboard.
Cons
- Self-reported performance: AltIndex’s win-rate figures are not audited by an independent third party, as TradeAlgo points out. The homepage cites 61% across all picks while the picks page quotes roughly 70%, so treat both as marketing claims.
- Not financial advice: AltIndex states in its disclaimer that the site cannot and does not contain financial advice. You carry all the risk of acting on a pick, and past results never guarantee future returns.
- Weaker outside consumer sectors: AltIndex signals work best for consumer-facing companies with visible web and app activity, according to TradeAlgo. Utilities, REITs and pharmaceutical stocks showed roughly benchmark-level results in that review, because those firms leave fewer online traces.
- Too slow for day trading: AltIndex picks carry a 3 to 9 month outlook and scores refresh once a day. Day traders and options specialists will find the cadence too slow, and TradeAlgo notes there is no options flow or institutional order data.
- Noisy inputs: AltIndex relies on signals that bots, app-download farms and traffic estimate errors can distort, TradeAlgo warns. A spike in Reddit chatter may reflect hype rather than business strength, so check fundamentals before acting.
- Picks behind a paywall: AltIndex shows current AI picks only to paying members, while free users see past examples and the methodology. Fortunly reports the free screener view is limited to the top 10 stocks, so regular use needs at least Starter.
Who is Using AltIndex?
- Retail investors: Screening growth stocks with daily AI Scores.
- Swing and position traders: Timing entries for one to six month holds.
- Portfolio holders: Grading existing positions with the Portfolio AI Score.
- Developers and quants: Pulling signals through the API and MCP server.
Pricing
AltIndex is freemium, with a free account and paid platform plans from $29 per month or $199 per year (official prices, October 2026).
| Plan | Price | What you get |
|---|---|---|
| Free | $0 | Free account with past pick examples and methodology; current picks stay locked |
| Starter | $29 per month or $199 per year | Watchlist of 25 stocks, 1 brokerage connection, top 25 AI stock picks updated daily |
| Pro | $99 per month or $499 per year | Unlimited watchlists and connections, all 200 AI stock picks updated daily, developer API key and MCP |
| API Hobbyist | $19 per month or $120 per year | 250 requests a day, 20 a minute, REST only |
| API Developer | $79 per month or $480 per year | 1,000 requests a day, 300 a minute, MCP for AI agents |
| API Research | $199 per month or $1,200 per year | 10,000 requests a day, full history, 50 tickers per request |
| Enterprise | Custom | Priced per contract |
A TradeAlgo review lists a Pro plan at $19 per month on annual billing and TopAI.tools says there is no free plan; both conflict with the official pricing page, which we follow here.
Subscription rates can change without notice, so confirm the figure at AltIndex’s checkout, and remember that a paid plan buys research data, not guaranteed returns.
What Makes AltIndex Unique?
Alternative data at retail prices is the core differentiator: AltIndex blends Reddit chatter, app downloads, hiring trends and insider trades into one daily score that an individual investor can read in seconds. Traditional screeners start from price and fundamentals, whereas AltIndex treats fundamentals as one input among many online signals. Its developer API and MCP server also let you pipe those scores into your own AI agents, a step beyond a standard research dashboard.
Compatibilities and Integrations
- Platforms: Web dashboard plus iOS and Android apps with push notifications and sync.
- Brokerages: Brokerage connections and screenshot uploads for portfolio scoring.
- API: REST API with daily request quotas from the Hobbyist tier.
- AI agents: MCP server on the Developer API tier and the Pro platform plan.
AltIndex Tutorials
Getting a first AI Score takes only a few minutes.
- Create a free account at altindex.com or in the mobile app.
- Search a ticker to see its AI Score and alternative data signals.
- Add stocks to your watchlist and switch on alerts.
- Upload a brokerage screenshot to get a Portfolio AI Score.
- Upgrade to Starter or Pro if you want current AI stock picks.
How We Rated It
| Criterion | Score | Why |
|---|---|---|
| Accuracy and Reliability | 3.4 | Self-reported, unaudited results |
| Ease of Use | 4.4 | Single 0 to 100 score |
| Functionality and Features | 4.5 | Picks, alerts, API, agent |
| Performance and Speed | 4.0 | Scores refresh daily |
| Customization and Flexibility | 3.6 | Watchlists and alerts only |
| Data Privacy and Security | 3.6 | Says data not sold |
| Support and Resources | 3.4 | Little public support detail |
| Cost-Efficiency | 4.1 | Annual plans cut cost |
| Integration Capabilities | 4.3 | API, MCP, brokerage links |
| Overall Score | 3.9 | Average of the nine criteria |
Summary
AltIndex suits retail investors and swing traders who want alternative data signals without building their own scrapers. Its main limitation is that pick performance is self-reported and weaker outside consumer sectors. Treat its scores as a research starting point rather than financial advice, since nothing it shows guarantees returns. Start with the free account, then try Starter on annual billing within the 14-day money-back window.
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