Deep Quarry
Olga Usvyatsky, Francine McKennaUsing data to uncover trends in disclosure and reporting.
| Platform |  | Pricing | Freemium | Publishes | Weekly |
|---|---|---|---|---|---|
| Issues | 105 | Founded | 3 years ago | Last Issue | 9 days ago |
| Active | |||||
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deepquarry.substack.comLatest Issues
The price of pre-IPO info leakage: Issuer and media obligations
This is collaborative effort, co-authored with The Dig the newsletter from Francine McKenna. If you value our work, please subscribe!
Deep Quarry is a reader-supported publication. To receive new posts and support my work, consider becomin...
Our analysis of the SpaceX draft to public prospectus
SEC comment letters are confidential until after the IPO, but changes made by SpaceX base don the SEC's review may provide insights into the SEC's disclosure priorities.
This is collaborative effort, co-authored with The Dig the newsletter...
Super Micro's working capital is under pressure, on top of all its other troubles
Super Micro was struggling to stay listed, fend off short-sellers, satisfy auditors and investigate itself. But now its working capital is under pressure and the disclosure leaves open questions.
This is collaborative effort, co-authored w...
Recent Tax Accounting Developments: Tariff Refunds, CAMT Reversals, and Hyatt’s Loyalty Program Tax Dispute
Recent SEC filings reveal the accounting impact of tariff refunds, valuation allowance reversals, and tax disputes.
Changes in tax law or court rulings often prompt companies to record large one-time accounting adjustments, which may mater...
Super Micro's export control issues: relationships with customers and financial reporting considerations
Assessing reported Oracle order changes, inventory exposure, and revenue recognition risks in a tightening export-control environment
On March 19, 2026, the U.S. Department of Justice indicted three persons — high-level employees and inter...
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| Subscribers | Engagement | 71 | Monthly Web Visits | ||
|---|---|---|---|---|---|
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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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