5 pieces
Segment reporting is read by setting the company-wide totals aside for the note that splits a business into its parts, then asking of each part how fast it grows, what margin it keeps, and which costs were left out.
Adjusted EBITDA is profit with selected costs removed, and no rulebook says which ones. It is fair when those costs will not return, and misleading when they are the cash a business must spend to stay open.
When an earnings call and a 10-K disagree, believe the filing. The call is what management chose to say; the 10-K is what it was required to disclose, and the deciding fact usually sits in the notes.
Reported profit is an accountant's considered opinion; cash is closer to a fact. An earnings collapse can be almost entirely an accounting artifact while the cash the business generates barely moves.
Every quarter, thousands of public companies deliver earnings calls. Most investors listen to a handful. What happens when you read thousands of them systematically — not for the numbers, but for the language?