Insights
8K Brief Insights
How to read an 8-K, and what 34,029 of them show about the way companies actually disclose. Every figure is measured from filings we have processed from SEC EDGAR and states the population it came from. Free to read. For the filings themselves, see the briefing archive.
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When Companies Amend an 8-K
Only 2.2% of 8-Ks are amendments, and 546 of 734 touch Item 9.01 — documents arriving late rather than anything going wrong. What gets amended, and how to read an 8-K/A.
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How to Read an Executive Departure
The phrase investors look for — an explicit statement of no disagreement — appears in 1.2% of Item 5.02 filings. How departure language distributes across 5,516 filings, and what it does and does not tell you.
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Which 8-Ks Are Worth Opening?
More than half of shareholder-vote 8-Ks contain no narrative detail; delisting notices contain it 99% of the time. How often each 8-K item code is an empty cover page, measured across 33,124 filings.
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Is Bad News Really Buried on Friday?
A 2026 study found negative 8-Ks cluster on Fridays and after-hours. We tested the timing pattern against 25,048 recent non-earnings filings and found the opposite — with several reasons it may not mean what it looks like.
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How to Read an 8-K Filing
A practical guide to reading an SEC Form 8-K in under two minutes — where the substance actually sits, which Item numbers matter, and what the timing tells you. Measured across 33,123 filings.
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The filings themselves
These pages explain how 8-Ks work. The daily brief is the other half: every material 8-K each market morning, ranked, with summaries, urgency rationale and language-shift detection.