◆ Vol. IV · §02 · ¶03 — Investment

Investment Scorer.

Analyze any stock across valuation, profitability, growth, momentum and safety — and get one transparent Buy & Sell score.

Educational only. This is a research aid, not investment advice — and no calculator can guarantee returns.

§ Tool — Stock Analyzer

Stock analyzer

Enter the numbers from any company's last 10-K or 10-Q (or your favorite data provider). Scores update as you type.

Identity & price
Earnings & revenue
Profitability inputs
Balance sheet
Weights (% — should sum to 100)
Buy & Sell score · AAPL
53
Hold
0–100 scale · higher = more buy signals
Strong sellSellHoldBuyStrong buy
Valuation
16
Strong Sell
Profitability
92
Strong Buy
Growth
40
Hold
Momentum
69
Buy
Safety
49
Hold
Plain-English summary

AAPL scores 53 (Hold). Strengths: Profitability: high margins and returns on capital; Momentum: price and earnings trend is positive. Concerns: Valuation: looks expensive on common multiples; Growth: growth is flat or declining.

Use this as one input in a broader research process. Re-run with conservative numbers to stress-test.

Valuation
P/E29.23sell
Forward P/E26.39sell
PEG2.42sell
P/S7.65sell
P/B45.24sell
EV/EBITDA23.04sell
Tobin's Q9.55sell
Profitability
ROE146.2%buy
ROA27.1%buy
ROIC28.0%buy
Gross margin44.2%buy
Operating margin29.9%buy
Net margin24.7%buy
Asset turnover1.10buy
Interest coverage32.86×buy
Growth
EPS growth12.1%hold
Revenue growth5.5%hold
PEG2.42sell
Momentum
12m price momentum15.2%hold
Relative strength3.15 pphold
Earnings surprise4.8%hold
ROIC − Cost of capital19.00 ppbuy
Safety
Debt / Equity1.69sell
Debt / Capital62.9%sell
Quick ratio0.89hold
Working capital-10000sell
§ Library

Ratio library

A mini-course on the numbers professionals actually use. Each card links to the matching input in the analyzer above.

Valuation
High value means
Investors expect growth — or the stock is expensive.
Low value means
Bargain — or the market expects trouble.
Buy signal
Below sector median & growth supports it
Sell signal
Far above peers with no growth catalyst
Example
Price $100, EPS $5 → P/E 20.
Jump to input ↑
Profitability
Growth
Momentum & Quality
Safety & Leverage
§ Method

How it works

No black box. Here's the entire scoring engine in plain English.

1 — Categories

Every ratio belongs to one of five families: Valuation, Profitability, Growth, Momentum, Safety.

2 — Sub-scores

Each ratio is mapped to a 0–100 score using sensible thresholds (e.g. P/E of 8 → 100, P/E of 40 → 0). Ratios in a category are averaged into a category sub-score.

3 — Weighted overall

Sub-scores are blended into one 0–100 Buy & Sell Score using the weights you set in the analyzer (defaults to 20% each).

4 — Verdict

80–100 Strong Buy · 60–79 Buy · 40–59 Hold · 20–39 Sell · 0–19 Strong Sell.

Step 1

Enter the company's financial data from its latest filing.

Step 2

Read the overall score and the five category sub-scores.

Step 3

Use the ratio library to learn why each signal fired.

Step 4

Combine with qualitative research. Never rely on one number to buy or sell.

Educational tool. Past performance and accounting numbers do not predict the future. Always read the filings and consider your own situation.