Leftagraph
Leftagraph is a web app that charts a company's financial statements from its SEC filings. Search any US-listed company by name or ticker and plot lines from the income statement, balance sheet and cash flow statement on one chart, including revenue, net income, free cash flow, debt and net cash.
The free version needs no account and covers annual figures for the last 10 years. A paid Pro plan adds quarterly figures, full history, key ratios, valuation measures, CSV export and a stock screener.
The site has no ads and no third-party trackers. It covers companies that file US-GAAP financial statements with the SEC.
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Datafinia
Datafinia is an institutional-grade quantitative research platform that brings AI-driven market intelligence, quant scanners, portfolio optimizers, and real-time data into one financial analytics terminal. It is designed to help serious traders, analysts, and institutions stop guessing and put data on their side by unifying live market feeds, interactive candlestick charts, technical overlays, historical market data, regulatory filings, press releases, macroeconomic indicators, fixed income dashboards, fundamentals, analyst consensus, financial statements, and portfolio tools in one research environment. It covers global, multi-asset markets and supports workflows across equities, bonds, commodities, currencies, crypto, forex, and international market datasets. Datafinia’s quantitative scanners help users discover structurally mispriced assets at scale using Z-score filtering, identify deeply undervalued opportunities, and flag overextended risk based on long-term regressions.
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Finapolis
Finapolis brings stock research and portfolio management together in one web application, built for self-directed investors and small investment firms working with US stocks.
Screener filters US stocks and ETFs by sector, proprietary grades and 26 fundamental metrics, and includes a collar options screener. Analyzer covers financial statements, peer comparisons and an editable discounted cash flow (DCF) model. Reporter produces equity research reports on public companies, each listing the filings and earnings-call transcripts it draws on. Trader builds multi-leg options strategies with Black-Scholes pricing, the Greeks and options-overlay backtests. Portfolio tracks brokerage-synced holdings with risk metrics, rebalancing and tax-loss harvesting candidates.
Napoli, the built-in AI assistant, runs screens, analysis and portfolio checks from plain-language requests.
Finapolis is not a brokerage and does not give investment advice. 14-day free trial, no credit card required.
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MarketCatalyst
MarketCatalyst is a web-based market intelligence terminal for traders and investors researching publicly traded securities. Its 16 workspaces cover market movers, earnings versus consensus, analyst actions from 221 firms, economic events, IPOs, ETFs, insider Form 4 transactions and institutional 13F holdings from SEC EDGAR, stock screening, portfolios, watchlists, and daily and weekly recaps. AI-generated explanations accompany market views and summarize the evidence; the platform does not provide forecasts or stock picks. The free Starter plan uses delayed market data, while paid plans add real-time data, alerts, portfolio and watchlist AI, API access, and data export. The browser-based platform combines market research and portfolio monitoring in one interface.
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