Read the filing, not the headline

Start at the cash-flow statement, not the income statement. Apple is the clearest case for why buybacks make earnings per share a poor measure of growth on its own.

Banks break most standard ratios. Use it to see why current ratio and Altman Z are close to meaningless for a financial institution, and what replaces them.

A thin net margin that says almost nothing until you pair it with asset turnover and the membership line. The textbook argument against judging a retailer on margin alone.

A deep cyclical. A single-year P/E on a company like this is actively misleading — the multi-year view is the only one that means anything.

A business where the quality question and the valuation question give opposite answers, and the interesting work is holding both at once.

Heavy capital expenditure against declining returns. Read free cash flow rather than net income to see what the reinvestment is actually costing.

A high dividend yield resting on substantial leverage. The case for reading interest coverage before you read the yield.

Patent expiry makes trailing revenue a poor guide to forward revenue. Pharmaceutical accounting rewards reading the pipeline disclosure, not the top line.

Both British oil majors are up 28–34% this year, yet BP kept 0.03 cents of profit per dollar of sales in 2025 and Shell kept 6.7. A plain-language walk through write-downs, return on equity, debt measured two ways, and interest coverage — and the four checks that catch the difference between any two rivals.

Oil is near $100 and the Bank of Canada is holding at 2.25%, yet Canadian Natural (CNQ) is up 49% and Enbridge (ENB) is down 3%. A plain-language comparison of a producer and a pipeline — margins, return on equity, debt, interest coverage — from their 2025 filings, and why interest rates, not oil, decide Enbridge's year.

Updated with the result: Costco beat with Q4 EPS of $6.75 vs $5.87 and ~$6.55 expected, comps ex-fuel +6.7%, membership fees +7.3%, 939 warehouses, no special dividend, shares +1% after hours. The preview as written: Costco (COST) reported fiscal Q4 2026 on September 24. Sales of $93.9bn are already public; the questions are membership-fee growth after the fee increase, comps excluding fuel, gross margin under tariffs, and a possible special dividend. A plain-language preview with the five-pillar verdict (HOLD), the earnings-yield test against a 5% Treasury, and how Costco compares with Walmart, Target and BJ's.

The Fed raised, the Bank of Canada held, the Bank of England split 6–3, and Australia is about to hike again. A plain-language guide to why the same oil shock produced four decisions, what a rate move does to a bank's profits, and the return-on-equity and price-to-book numbers for JPM, BAC, RY, TD, BNS, HSBC, LYG and BCS from their filings.

We pulled every insider Form 4 filing for September 14–22, 2026. Purchases halved, sales halved, and the sell-to-buy ratio did not move — except for Berkshire Hathaway buying $212m of Lennar the three days after the hike, Fox's CEO buying $10m, Truist's CEO buying $1m, and cluster buys at Celsius, Cooper and Star Bulk. What insider buying means, in plain language, with the filings.

The 10-year Treasury yield crossed 5% on September 14, 2026. A plain-English walk through what a higher risk-free rate does to stock prices — the discount-rate math, the earnings-yield test against real P/E data for META, NVDA, AMD, XOM, BAC and others, and how to re-check your own holdings.