Deep Quarry
Olga Usvyatsky, Francine McKennaUsing data to uncover trends in disclosure and reporting.
| Platform |  | Pricing | Freemium | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 114 | Founded | 3 years ago | Last Issue | 7 days ago |
| Active | |||||
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deepquarry.substack.comLatest Issues
Microsoft's 2026 Annual Report: What's going on with all the accounting changes?
Microsoft's latest disclosures are a little more but still not enough to fully explain its relationship with OpenAI, its capital expenditures, and its free cash flow. We'll try to shed some light.
This is collaborative effort, co-authored...
Tesla's Investment in SpaceX: The $1 Billion Accounting Choice
Tesla and Alphabet both profited from SpaceX. Their financial statements tell different stories.
Alphabet (Ticker: GOOG) and Tesla (Ticker: Tesla) both reported material unrealized gains from their SpaceX investments. That’s where the simi...
SEC Compensation Recovery Rule: Restatements and Related Clawbacks, Quarterly Update # 6
A quarterly review of compliance trends, SEC comment letters, and the complexities of recovery analysis
SEC Rule 10D-1 – often referred to as the compensation clawback rule — requires public companies to adopt policies to recover excess in...
Post-mortem: The SEC's pre-IPO comment letters to SpaceX
Can investors infer the likely focus of the SEC’s confidential review before the comment letters become public? Yes! Yes they can!
This is collaborative effort, co-authored with The Dig the newsletter from Francine McKenna. If you value ou...
Long SEC Reviews Quarterly Update # 8
Long SEC reviews reflect ongoing regulatory concerns over a company’s financial disclosures or accounting practices, signaling potential risks or uncertainties to investors.
What are unresolved SEC comments, and why are they important?
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Authors
The writers behind this newsletter.
Olga Usvyatsky is a former VP of Research of Audit Analytics, where she led the development of new data sets used by investors, regulators, and academics. Her work was frequently cited by media, including WSJ, Bloomberg, and MarketWatch.
Francine McKenna writes, teaches, and speaks about audit, accounting and public company governance.
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