Company Research
Enter a ticker and see business quality, balance sheet, management and valuation on one page: margins, ROIC, capital allocation, reverse DCF, scenarios and key questions.
NewA “?” beside every metric: plain-language explanations and formulas
The financial terminal built for value investors
Understand the business first, then judge the price. Tuna puts a company's business quality, balance sheet, management and valuation on one page, with numbers taken from its filings — for China A-shares, Hong Kong and US stocks.
3
marketsChina A-shares · Hong Kong · US
1
page per companyBusiness, balance sheet, management and valuation
30+
metrics explained in plain wordsFrom P/E to reverse DCF
3
valuation scenariosBear · base · bull, each with a 5‑year IRR
The four questions of value investing, answered on one page
Enter a ticker and Tuna answers each one with numbers from the filings. The final call is yours.
- Q1
Is it a good business?
How it makes money and how well: margins, ROIC and cash conversion year by year, plus its segments and competitive position.
- Q2
Can the balance sheet take a hit?
Whether debt could sink it in a downturn: net debt, interest coverage and the current ratio, and whether free cash flow stays positive.
- Q3
Can you trust management?
How they spend shareholders' money and whether they keep their word: buybacks, dividends, acquisitions and stock compensation, plus guidance set against actual results.
- Q4
What is the price assuming?
Work out what the market expects before deciding whether it's cheap: valuation multiples, FCF yield, a reverse DCF and the 5-year IRR in three scenarios.
QUAL01
See how a business really makes its money
A-shares, Hong Kong and US stocks share one set of panels. Revenue, margins and cash flow are laid out by fiscal year, with revenue broken down by segment and region; AI only writes short notes, each with a citation.
- Margins, ROIC and cash conversion year by year
- Revenue by segment and region
- Competition, moat and debt risk
VAL02
First, work out what the price already assumes
A reverse DCF turns today's price into the growth the market expects and sets it beside the company's own record. Bear, base and bull cases then project five-year returns. AI proposes the scenario assumptions; value and IRR come from fixed formulas.
- P/E, EV/EBIT, FCF yield and other multiples
- Five-year IRR in three scenarios, with sensitivity analysis
- The key assumptions the base case asks you to believe
RET03
Does management do what it says?
Where did the free cash flow go — buybacks, dividends or acquisitions? Is the share count shrinking, or being diluted by stock compensation? Tuna also checks recent guidance line by line against actual results and revisits the promises made in annual reports two or three years back.
- Buybacks, dividends and acquisitions as a share of free cash flow
- Share count and stock compensation
- Guidance vs. actual, and promises kept
WATCH04
When the fundamentals change, you'll know
You don't need to watch the ticker all day, but you can't miss a change in the fundamentals. When a company you follow reports, files or makes news, the daily brief merges the coverage into one paragraph and shows where each sentence came from.
- Every claim links back to its source
- Earnings calendar: every next report date at a glance
- Alerts when a US company you follow files with the SEC
Research, follow-up and discovery — all in one membership
Beyond research: keep up with the companies you own through briefs, the earnings calendar and alerts, and find new candidates with market-wide screens.
Daily brief
Every morning, AI condenses the past day's news on the companies and industries you follow into short paragraphs, every sentence linked to its source. Look back at any past day.
Earnings calendar
Upcoming report dates for the companies you follow, in one calendar.
SEC filings
Search and download 10-Ks, 10-Qs and 8-Ks; get alerted when a company you follow files, with AI-written key points.
News feed
The latest news on everything you follow, in time order, filterable by company and date and searchable.
Rule of 40
Revenue growth plus profit margin over the trailing four quarters for every US stock, updated as new filings land — one chart to spot companies that balance growth and profitability.
Market radar
Every trading day, a market radar for A-shares and one for US stocks — limit-up moves and sector swings, indices and sector ETFs, the earnings and economic calendars — optionally pushed to your webhook.
Volume radar
After the US close, find stocks trading on unusually heavy volume, with the likely reason for each.
Let the numbers speak. The call is yours.
Tuna doesn't tip stocks or set price targets. It lays out the facts and shows where each one came from, so you can make up your own mind.
Numbers from the source
Financials come from reports, exchange announcements and SEC filings — never generated by a model.
Every claim is traceable
AI-written research notes and briefs cite their sources sentence by sentence, one click from the original.
Every metric explained
More than 30 valuation and financial metrics carry a “?” that explains in plain words what the number means, how the page calculates it and how to read it.
Get started in three steps
- 01
Sign up and become a member
Creating an account is free. Then subscribe monthly or yearly by card, or pay once with WeChat Pay or Alipay. The first 100 members get the founding price.
- 02
Research a company
Enter a company name or ticker and see its business, balance sheet, management and valuation on one page.
- 03
Follow it over time
When a company you follow reports, files or makes news, the daily brief, earnings calendar and SEC alerts keep watch for you.
One membership, every module
No tiers — every member gets the same complete terminal. Pricing details
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FAQ
Common questions about plans, payment and coverage.
Who is Tuna for?
Investors who do fundamental research and like to own good businesses for the long run — understanding the business first, then judging the price. Tuna isn't trading software: there's no order entry and no technical indicators, and it doesn't tip stocks or set price targets.
Is there a free trial?
Not at the moment — there is no free plan or trial. Card subscriptions bill monthly or yearly and can be canceled anytime; WeChat Pay and Alipay buy 30 or 365 days at a time and never renew automatically.
Are research reports really unlimited?
For everyday use, yes. To stop bulk scraping and shared accounts, each account can generate up to 10 new company research reports or SEC analyses a day and 150 every 30 days. Opening any report that already exists never counts, and neither does a failed generation.
What is the founding price?
The first 100 members pay the founding price, about a third below the standard price. Every renewal, a switch to annual billing, or rejoining later is charged at the founding price too.
Why is membership limited?
We'd rather do this well than big, so membership is capped at 1,000. When it's full you can join the waitlist and we'll email you when a seat opens.
Which payment methods do you accept?
Cards through Stripe (USD by default, or CNY or HKD; billed monthly or yearly), plus WeChat Pay and Alipay (CNY or HKD, 30 or 365 days per purchase).
How soon can I start after paying?
As soon as the payment provider confirms — usually within seconds.
How do I cancel?
Cancel a card subscription under Settings → Manage subscription; you keep access until the end of the period you've paid for. One-off purchases simply end when they expire. To switch from monthly to annual, cancel the monthly subscription and buy annual once it ends — a founding price carries over.
Which markets are covered?
Company research covers A-shares, Hong Kong and US stocks; market radar covers A-shares and the US; volume radar, Rule of 40 and SEC filings are US-only for now; news and briefs work for any market.
Is this investment advice?
No. Data and AI-generated content in Tuna Terminal are for research only, may contain errors or delays, and are not investment advice.
Research every company like an owner
Create an account, become a member, and every module is ready right away.