How AI transforms fundamental stock analysis — from hours poring over 10-Ks and earnings calls to instant financial health assessments, valuation models, and earnings research through natural language conversation.
Fundamental analysis is the foundation of intelligent investing — but doing it properly is deeply time-intensive. Reading financial statements, computing ratios, tracking multi-year trends, assessing competitive position, building valuation models — a thorough fundamental analysis of a single company can take professional analysts days.
AI compresses this work without compromising the depth of insight. Diplyzer gives individual investors access to institutional-quality fundamental analysis in a fraction of the time.
Most retail investors look at 2-3 ratios (usually just P/E and revenue growth), read one or two recent news articles, and consider that "fundamental research done." Professional analysts do something very different:
AI doesn't replace business judgment — but it delivers all the quantitative work instantly, so you can focus your limited analytical time on the parts that require human judgment.
The fastest way to screen for fundamental quality:
"Fundamental health check for [company]: (1) Piotroski F-Score — what is the score and what are the individual component scores? Which signals are positive and which are concerning? (2) Altman Z-Score — is the company in the safe, grey, or distress zone? (3) free cash flow over the last 4 quarters — is it positive, growing, and does it comfortably exceed the dividend obligation? (4) gross and operating margin trend over the last 4 quarters — expanding or compressing? (5) debt-to-equity and current ratio — is the balance sheet healthy? Summarize the overall fundamental quality in one paragraph."
This single prompt delivers what used to require manually pulling 8 quarters of financial data and calculating 15+ individual metrics.
"Show me [company]'s revenue trend over the last 12 quarters. Is growth accelerating or decelerating? Is the growth coming from organic operations or acquisitions? What is the consensus estimate for next quarter's revenue growth and how does that compare to the trend?"
"Analyze [company]'s gross and operating margin trend over the last 3 years. Are margins expanding (positive operating leverage), stable, or compressing? If compressing, is management explaining the reason? Is this a temporary cost issue or a structural competitive problem?"
"Compare [company]'s reported net income to its free cash flow over the last 4 quarters. Is FCF consistently above or below net income? A large gap (earnings significantly above FCF) may indicate aggressive accounting. What is the earnings quality picture?"
"Balance sheet risk assessment for [company]: total debt vs. EBITDA, debt maturity schedule (how much matures in the next 2 years), interest coverage ratio, and cash on hand vs. upcoming debt obligations. Is there any near-term refinancing risk?"
"Valuation analysis for [company]: current P/E, EV/EBITDA, and Price-to-Free-Cash-Flow. Compare each to: (1) the company's own 5-year average, (2) the sector median, and (3) 2-3 direct competitors. Is the stock cheap, fairly valued, or expensive by each measure?"
"What is the estimated intrinsic value range for [company] based on a conservative DCF? Assume revenue growth of [X]% for 3 years, declining to [Y]% thereafter, a [Z]% discount rate, and a terminal EV/EBITDA of [X]×. How does this compare to the current enterprise value?"
"What is [company]'s Graham Number (√(22.5 × EPS × Book Value Per Share))? Is the current stock price below this conservative intrinsic value estimate? Is the Altman Z-Score above 2.5 confirming it is not financially distressed?"
"Pre-earnings analysis for [company] reporting [date]: last 8 quarters of EPS and revenue vs. consensus with actual stock reactions in the 5 trading days after each report. What has been the average beat/miss magnitude? What are the current consensus estimates? What is the implied move from the options market? What key metrics should I watch in the report?"
"Summarize the key messages from [company]'s most recent earnings call transcript: what was management's tone — confident or cautious? What was the full-year guidance and how does it compare to analyst consensus? Were there any significant changes to their business outlook? Did management mention any headwinds or opportunities they didn't mention in prior calls?"
"[Company] just reported: EPS of [X] vs. [estimate] expected, revenue of [X] vs. [estimate] expected, and full-year guidance of [X] vs. consensus of [estimate]. The stock is [up/down] [%]. Was the guidance positive or negative surprise? What specifically drove the EPS beat/miss — was it revenue growth, margin expansion, or non-recurring items? Is the after-hours move justified by the fundamentals?"
When deciding between two similar companies:
"Compare the fundamental quality of [Company A] vs. [Company B]: Piotroski F-Score for each, 3-year revenue growth rate, gross margin trend, free cash flow conversion, return on invested capital, and current valuation (P/E and EV/EBITDA). Which company is fundamentally stronger? Which is more attractively valued? Which would you prefer as a long-term investment and why?"
"Which companies in the [sector] sector currently have the highest Piotroski F-Scores? List the top 5 by score with their current P/E ratio and 1-year revenue growth rate. I'm looking for the highest quality companies trading at reasonable valuations."
"How has the [sector] sector's average gross margin changed over the last 3 years? Is this an industry with improving or deteriorating unit economics? Which individual companies within the sector are gaining or losing margin share?"
| Task | Traditional Time | With Diplyzer |
|---|---|---|
| Calculate Piotroski F-Score (9 components) | 45-60 min | Instant |
| Margin trend analysis (12 quarters) | 30 min | Instant |
| DCF valuation model | 2-4 hours | 5 min prompt |
| Peer comparison (5 companies) | 2-3 hours | 10 min |
| Earnings call summary | 60-90 min (listen/read) | 5 min |
| Complete fundamental report | 8+ hours | 30 min |
The result: you can maintain rigorous fundamental standards across a much larger universe of companies — and catch deteriorating fundamentals in your existing holdings before they become price problems.
"I want to invest in [sector]. Find the 3 companies with the best combination of: strong and improving Piotroski F-Score, expanding gross margins, trading below 15× free cash flow, and no financial distress risk (Altman Z-Score safe zone). Give me a brief investment thesis for each."
Create your free Diplyzer account to run your first AI fundamental analysis.