VOL. XCIV, NO. 247
THE COMMUNITY-RANKED FREE INVESTING TOOL LEADERBOARD
Live community ranking · Top 15 free short interest tools
Best Free Short Interest Tools for Investors
The free short interest platforms investors trust most, ranked by the people who actually use them.
Every tool here offers a genuine free tier, ranked by community votes and light editorial curation. We filtered 19 total short interest tools inside a directory of more than 369 investing platforms down to 15 free short interest platforms, so you can compare useful zero-cost options before moving into paid upgrades. Use this shortlist to compare pricing limits, platforms, and decision signals, then open any tool for the full breakdown.
Community-ranked · Free tiers only · Not financial advice
Most Shorted Stocks
Checked dailyTrack short squeeze candidates with float, industry, and short % of float.
Top 10 Tools
- 1Top pick
Koyfin is a web and mobile research terminal with dashboards, charts, screens, portfolios, news, alerts, transcripts, and market data across equities, funds, macro, FX, commodities, crypto, and yield curves. Free access shows the workflow; paid and Advisor tiers add history, reports, alerts, integrations, and client portfolios. There is no public API.
Best forInvestment research workspaceStock screeningChartingPortfolio analyticsMarket monitoringWatch-outsNo public APISome downloads are vendor-restricted - 2
EPSMomentum focuses on earnings momentum and entry timing. It combines estimate revisions, post-earnings drift, timing signals, scanners, AI analysis, and market dashboards for U.S. stocks and ETFs.
Best forStock screeningQuant ratingsTechnical analysisAI research workspaceAlertsWatch-outsUS stocks and ETFs focusProprietary signals require trust - 3
Marketgenius is a free stock-research site with global index heatmaps, superinvestor portfolios, a stock screener, company fundamentals, ownership data, valuation tools, dividends, short interest, and financial calculators. It is not a broker, terminal, portfolio tracker, or public API.
Best forMarket mapsVisual stock researchStock researchMarket monitoringInvestor holdings researchWatch-outsLightweight research surfaceLimited country coverage - 4
SentiSense is a beta AI market-intelligence and data API service for stock data, sentiment, news clusters, social signals, institutional flows, insider trades, congressional disclosures, and generated analysis. It supplies research signals, not brokerage or advice.
Best forAI research workspaceMarket monitoringFinancial data APIStock researchInsider and institutional trackingWatch-outsBeta product with plan limitsCoverage claims need caution - 5
ORTEX combines short interest, securities lending, options flow, and trading-signal data for active investors, analysts, and data teams. Deeper web and API access sits behind paid tiers. It is a signal service, not a broker or portfolio ledger.
Best forOptions dataMarket monitoringQuant ratingsInsider and institutional trackingFinancial data APIWatch-outsBest data is paidOptions data has OPRA terms - 6
Fintel brings short interest, off-exchange volume, institutional ownership, insider trades, ETF exposure, options sentiment, filings, screens, alerts, APIs, and AI research into ticker pages. It is useful for studying positioning and crowding before deeper fundamental work. Premium data, exports, options flow, AI, and portfolio tools depend on the plan, and the signals are inputs rather than recommendations.
Best forInsider and institutional trackingOptions dataStock screeningQuant ratingsAI research workspaceWatch-outsMany core workflows are paidBroker linking is U.S.-only - 7
GuruFocus combines global fundamentals, valuation, GF Score, GF Value, stock, ETF, and bond screens, backtests, guru and institutional holdings, insider trades, portfolios, spreadsheet add-ins, and APIs. It is built for fundamental and value research, not brokerage execution.
Best forStock researchStock screeningValuation modelingInvestor holdings researchStrategy backtestingWatch-outsPaid access is region and tier dependentAdvanced API access is separate - 8
CapEdge combines SEC filings, transcripts, financials, ownership data, IPO tracking, ETF exposure, and short-interest data. It is free, but some tables require an account.
Best forFundamental researchEarnings transcript researchStock screeningInsider and institutional trackingPortfolio alertsWatch-outsAccount needed for full accessNo public API - 9
Find My Moat Short Interest is a free, searchable tracker for US stocks with short interest above 20% of float. It is a discovery table with plain-language context, not a trade signal, export feed, or API.
Best forStock screeningTechnical screeningMarket monitoringPortfolio watchlistsResearch reportsWatch-outsDependent sourceNot a trade signal - 10
ChartMill is a browser screener and charting service for U.S., Canadian, and European stocks and some ETFs. It supports technical and fundamental screens, swing-trading ideas, watchlists, alerts, dashboards, ratings, and strategy templates. It is still a research tool, not a broker or full portfolio ledger.
Best forStock screeningTechnical screeningChartingStock researchPortfolio alertsWatch-outsDelayed market dataNot a broker or portfolio system
- 11
Börsdata gives investors long-history Nordic fundamentals, ratios, screens, ownership, insider and short-selling data, technical charts, reports, watchlists, calendars, and spreadsheet or API access. It is strongest for Nordic equities. Global data, holdings, Excel or Sheets workflows, and the REST API depend on the plan.
Best forGlobal stock screeningStock screeningFundamental researchFinancial data APIDividend analysisWatch-outsBest value is Nordic-firstAPI and global depth are paid-tier features - 12
FinancialData.Net provides market data, fundamentals, ownership, options, funds, ESG, calendars, and news through REST, Excel, and MCP interfaces. It covers stocks, ETFs, mutual funds, futures, crypto, foreign exchange, commodities, OTC securities, and indexes. The free plan is limited, and the homepage security claims are not supported by a public audit report.
Best forFinancial data APIMarket data APIAI agent data accessFundamentals dataOptions dataWatch-outsSerious use is paidCompliance claims need verification - 13
HighShortInterest.com is a no-login list of U.S. stocks with reported short interest above 20%. It is a quick starting point for heavily shorted names, not a full screener or institutional feed. The site does not provide the detailed methodology, downloads, API, alerts, or live positioning needed to treat it as a complete dataset.
Best forStock screeningMarket monitoringWatch-outsVery limited toolSource and methodology are thin - 14
IBorrowDesk tracks stock-borrow availability and fees from Interactive Brokers' securities-lending data. It is useful for short sellers and event-driven researchers watching hard-to-borrow pressure in stocks and ETFs. It reflects IBKR only, not the whole lending market; longer history and CSV exports require the Subscriber tier.
Best forMarket monitoringStock researchPortfolio alertsWatch-outsIBKR-only sourceLonger history is paid - 15
Nasdaq.com offers exchange-branded quotes, news, screens, calendars, filings, options chains, watchlists, company financials, ownership, and IPO context. Its free My Quotes page lets account holders save up to 20 watchlist symbols. It is not Nasdaq Data Link, a licensed feed, broker, or professional API.
Best forStock researchStock screeningPortfolio watchlistsOptions dataAnalyst ratingsWatch-outsNot Nasdaq Data LinkLimited watchlist
Want the complete picture?
Compare all 19 short interest tools, including premium upgrades and advanced tiers, to see exactly what you gain beyond a free plan.
View full Short Interest listingsKeep Exploring
Feedback
Spot something off, stale, or missing? Tell us how the free ranking, vote tallies, or a tool listing could be better.
Curation & Accuracy
This directory blends AI‑assisted discovery with human curation. Entries are reviewed, edited, and organized with the goal of expanding coverage and sharpening quality over time. Your feedback helps steer improvements (because no single human can capture everything all at once).
Details change. Pricing, features, and availability may be incomplete or out of date. Treat listings as a starting point and verify on the provider’s site before making decisions. If you spot an error or a gap, send a quick note and I’ll adjust.