Dombey Capital
Blog
Analysis, comparisons and research notes on special situations, valuation and event-driven investing from the Dombey Capital research desk.
Research ToolsChatGPT vs Claude vs Perplexity for Stock Research: What Each Can and Cannot Do (2026)ChatGPT, Claude and Perplexity compared for stock research: what each vendor says it can read, cite and calculate, October 2026 plans, and where all three stop. · 12 min read
Special SituationsHolding Company Discounts: Why Conglomerates Trade Cheap (2026)Why holding companies and conglomerates trade below the value of their parts, how to measure the discount honestly, and what can make it close. · 8 min read
Special SituationsSum-of-the-Parts Valuation: The Complete Guide (2026)What sum-of-the-parts valuation is, when it fits, why conglomerate discounts persist, what closes them, and the errors that inflate the answer. · 9 min read
Research ToolsThe 10 Best Portfolio Trackers for Event-Driven Investors in 2026 (Compared)Ten portfolio trackers compared on what event-driven holdings need: spin-off cost basis, splits, tender cash, event dates and filing alerts. · 15 min read
Research ToolsThe 8 Best Activist Investor Trackers (13D Filings) in 2026 (Compared)Eight activist investor trackers compared on 13D coverage, campaign data, alerts and cost, from free SEC EDGAR feeds to institutional activism databases. · 14 min read
Event-Driven InvestingWhat Is a Going-Concern Warning? What It Means (2026)A going-concern warning says there is substantial doubt a company can keep operating. Who issues it, what triggers it and how to read one as an investor. · 7 min read
Explore all 78 articles by topic
Every Dombey analysis, comparison and research note, grouped by what it covers.
Research Tools
- ChatGPT vs Claude vs Perplexity for Stock Research: What Each Can and Cannot Do (2026)
- The 10 Best Portfolio Trackers for Event-Driven Investors in 2026 (Compared)
- The 8 Best Activist Investor Trackers (13D Filings) in 2026 (Compared)
- GuruFocus vs Stock Rover vs Koyfin: The Best Tool for Value Investors (2026)
- The 10 Best AI Stock Research Tools in 2026 (Compared)
- The 8 Best Options Flow and Unusual Activity Tools in 2026 (Compared)
- 12 Best Stock Market Newsletters on Substack in 2026 (Compared)
- Simply Wall St vs Stock Rover vs Dombey: Best Valuation Research for Small Caps (2026)
- The 10 Best Free Stock Screeners in 2026 (Compared)
- Benzinga Pro vs Seeking Alpha vs Dombey: The Best Catalyst News Source (2026)
- The 10 Best Earnings Call Transcript Tools in 2026 (Compared)
- The 8 Best Spin-Off Trackers and Research Sources in 2026 (Compared)
- The 10 Best Short Interest Data Tools in 2026 (Compared)
- The 8 Best Merger Arbitrage Data Sources and Tools in 2026 (Compared)
- TradingView vs Koyfin for Fundamental Research (2026): Which Should You Use?
- The 10 Best Tools for Tracking Insider Buying in 2026 (Compared)
- The 8 Best SEC Filing Tools and EDGAR Alerts in 2026 (Compared)
- Zacks vs Morningstar vs Value Line: The Best Stock Rating Service (2026)
- The 10 Best Earnings Calendar and Catalyst Tracking Tools in 2026 (Compared)
- The 10 Best Options Analysis Tools for Earnings and Catalysts in 2026 (Compared)
- The 12 Best Stock Screeners for Value Investors in 2026 (Compared)
- Finviz Alternatives: 10 Best Stock Screeners in 2026 (Compared and Ranked)
- Finviz vs TradingView vs Koyfin vs Stock Rover: The Best Stock Screener for Special Situations (2026)
- Koyfin vs TIKR vs Stock Rover: The Best Fundamental Data Platform (2026)
- Morningstar Investor vs Seeking Alpha Premium: Which Is Better for Value Investors? (2026)
- Motley Fool Alternatives: 10 Best Stock Research Services in 2026 (Compared)
- 12 Best Seeking Alpha Alternatives in 2026 (Compared and Ranked)
- Seeking Alpha vs Motley Fool vs Morningstar vs Dombey: The Best Stock Research Subscription (2026)
- The 10 Best Investing Newsletters for Special Situations in 2026 (Compared)
- The 12 Best Stock Research Tools for Individual Investors in 2026 (Compared)
Special Situations
- Holding Company Discounts: Why Conglomerates Trade Cheap (2026)
- Sum-of-the-Parts Valuation: The Complete Guide (2026)
- What Is an Odd-Lot Tender Offer? How It Works (2026)
- What Is a Reverse Merger? Risks and Red Flags (2026)
- Post-Bankruptcy Equities: Why New Shares Often Trade Cheap (2026)
- What Is a Dutch Auction Tender Offer? The Complete Guide (2026)
- Spin-Off Investing: Why Spin-Offs Get Mispriced (2026)
- What Is a Liquidation Play? How Wind-Downs Get Valued (2026)
- What Is a Rights Offering? How It Works and What to Check (2026)
- What Is a Special Situation? The Complete Guide (2026)
- What Is a Tender Offer? Terms, Timelines and Proration (2026)
Event-Driven Investing
- What Is a Going-Concern Warning? What It Means (2026)
- What Is a Debt Maturity Wall? Refinancing Risk Explained (2026)
- What Is a Lockup Expiration? Effects on Share Price (2026)
- FDA Decision Dates: How PDUFA Catalysts Work (2026)
- What Is a Shareholder Vote? Proxy Season Catalysts (2026)
- What Is the HSR Waiting Period? Merger Reviews Explained (2026)
- Hard vs Soft Catalysts: How to Tell Them Apart (2026)
- Merger Arbitrage Explained: Spreads, Risks and Timelines (2026)
- What Is a Stock Catalyst? Types, Examples and Timing (2026)
- What Is an Earnings Catalyst? How to Prepare for a Report (2026)
- What Is Event-Driven Investing? The Complete Guide (2026)
Research Process
- What Is an S-4? Merger Registration Explained (2026)
- What Is Form 4? Reading Insider Buying and Selling (2026)
- What Is EDGAR? How to Search SEC Filings (2026)
- What Is a Proxy Statement (DEF 14A)? What to Read (2026)
- What Is a 13D Filing? Activist Stakes Explained (2026)
- What Is a Form 10? Spin-Off Filings Explained (2026)
- What Is a 10-K? The Complete Guide for Investors (2026)
- What Is a 10-Q? How It Differs From a 10-K (2026)
Valuation
- What Is Free Cash Flow Yield? How to Use It (2026)
- What Is a Net-Net Stock? Graham's Method Today (2026)
- What Is Net Current Asset Value (NCAV)? Complete Guide (2026)
- Forward P/E vs Trailing P/E: Which to Use and When (2026)
- Price-to-Sales Ratio Explained: When Cheap Sales Matter (2026)
- What Is Tangible Book Value? How to Calculate It (2026)
- Negative Enterprise Value Stocks: What They Mean (2026)
- What Is Net Cash per Share? How to Calculate It (2026)
- Price-to-Book Ratio Explained: When Low P/B Means Value (2026)
- What Is Enterprise Value? Formula and Examples (2026)
Options and Catalysts
- What Is the Expected Move? Options Math Explained (2026)
- What Is Options Skew? What It Says About Risk (2026)
- What Is Short Interest? Days to Cover and Squeeze Risk (2026)
- What Is the Put-Call Ratio? Uses and Limits (2026)
- What Is Open Interest? How to Read It Before a Catalyst (2026)
- What Is a Straddle? How Traders Price an Event (2026)
- What Is Implied Volatility? The Complete Guide (2026)
- What Is IV Crush? Why Options Lose Value After Earnings (2026)
Step-by-step guides · Published research
Research access
Research published before the catalyst, kept on the record after it.
Public ArchiveComplimentaryA starting point for exploring our independent perspective on global equities through published executive theses and publicly available research.Read public research Standard Access$6.67 / monthOngoing catalyst coverage and the complete public-research archive, for readers who want to follow forthcoming events and revisit the firm's published thinking.Start Standard Access RecommendedFounding Membership$1,200 / yearInstitutional access to the complete research suite, proprietary models and execution strategy.Become a Founding Member