US Stock Sense Journal
Market research, investing education, and product insights.
Clear explanations and evidence-led perspectives for people researching US-listed companies.
-
Stock Screening Without Look-Ahead Bias
Build more defensible stock screens and backtests with point-in-time data, historical universes, explicit missing values, costs, and validation.
-
Insider Transactions: How to Read Forms 3, 4 & 5
Understand SEC Forms 3, 4, and 5, transaction codes, ownership types, amendments, trading plans, and the limits of insider-activity signals.
-
How to Research ETF Holdings and Fund Risk
Research ETF holdings with the right as-of date, concentration, overlap, methodology, costs, adjusted returns, and regulatory filing context.
-
Form 13F: How to Read Institutional Holdings
Learn what Form 13F reports, what it omits, how filing delay and amendments matter, and how to compare institutional holdings responsibly.
-
Cash Flow vs. Net Income: An Investor’s Guide
Learn why operating cash flow differs from net income, how working capital affects cash conversion, and which earnings-quality patterns to investigate.
-
Adjusted Stock Prices: Splits, Dividends, Charts
See how adjusted stock prices handle splits and cash distributions, why OHLC and volume must stay consistent, and how to verify return charts.
-
How to Use the P/E Ratio Without Fooling Yourself
Understand trailing, forward, and normalized P/E; learn why low is not always cheap and how to compare earnings multiples responsibly.
-
How to Read a 10-K: A Practical Investor Guide
Learn a repeatable way to read a Form 10-K, connect the statements and footnotes, identify changing risks, and build a research record.
Primary sources first
We begin with regulatory filings, issuer material, official records, and licensed market data.
Dates stay visible
Published, updated, report, and price dates remain part of the interpretation.
No hidden certainty
Missing data, model assumptions, and research limitations are stated rather than smoothed over.