January 2025 Activist Short Selling Report
January 2025 Activist Short Selling Performance Report Executive Summary 5 Total Reports Published +3.26% Average Performance of Stock 20% Success Rate January 2025 proved to be one of the most…
Activ8 Newsroom • December 12, 2025

January 2025
Activist Short Selling Performance Report
Executive Summary
Top Performers
Successful Short Campaigns
Only 1 of 5 campaigns resulted in target price decline
Bottom Performers
Failed Short Campaigns
Market Breakdown
Exchange Distribution
NASDAQ
3 reports (60% of total)
Avg. Impact: +2.49%
NYSE
2 reports (40% of total)
Avg. Impact: +12.26%
Geographic Distribution
United States
4 reports (80% of total)
Targets: FTAI, QUBT, TMDX, CVNA
Bermuda
1 report (20% of total)
Target: SIG (Signet Jewelers)
Geographic Reach
Industry Analysis
| Industry | Reports | Target | Impact |
|---|---|---|---|
| Technology | 1 | QUBT (Quantum Computing) | -15.95% |
| Specialty Retail | 1 | CVNA (Carvana) | +23.31% |
| Healthcare | 1 | TMDX (TransMedics) | +7.34% |
| Luxury Goods | 1 | SIG (Signet Jewelers) | +1.21% |
| Industrials | 1 | FTAI (FTAI Aviation) | +0.37% |
Market Cap Analysis
Large Cap Challenge
The largest target by market cap was Carvana ($86.7B), which proved entirely resistant to Hindenburg's allegations. Large-cap stocks with institutional backing and strong momentum continue to be extremely difficult to short effectively.
Small Cap Success
January's only successful short targeted Quantum Computing ($1.75B), the smallest market cap in the sample. This reinforces the pattern that smaller, promotional companies remain the most vulnerable to activist short campaigns.
| Ticker | Company | Market Cap | Impact |
|---|---|---|---|
| CVNA | Carvana | $86.67B | +23.31% |
| FTAI | FTAI Aviation | $18.16B | +0.37% |
| TMDX | TransMedics | $4.67B | +7.34% |
| SIG | Signet Jewelers | $3.58B | +1.21% |
| QUBT | Quantum Computing | $1.75B | -15.95% |
Firm Rankings
January 2025 Performance by Firm
Notable Campaigns
The Carvana Setback
Firm: Hindenburg Research
Target: CVNA | Impact: +23.31%
Fraud Allegations Related Party
Hindenburg alleged Carvana sold approximately $800 million in auto loans to a suspected undisclosed related party, representing 26% of gross profit since April 2024. Despite accusations of phantom financing and manipulative accounting, the stock surged, highlighting the challenge of shorting momentum stocks with strong retail backing.
The Lone Winner: QUBT
Firm: Capybara Research
Target: QUBT | Impact: -15.95%
Successful Promotional Stock
Capybara's report accused Quantum Computing Inc. of fabricating products, sales, and partnerships, arguing the $2 billion valuation was built entirely on misrepresentations. The firm's focus on promotional micro-cap fraud delivered January's only winning short campaign.
TransMedics: "Mafia Medicine"
Firm: Scorpion Capital
Target: TMDX | Impact: +7.34%
Healthcare Fraud $0 Target
Scorpion labeled TransMedics "the most grotesque healthcare fraud" they've seen, alleging Mafia-style organ trafficking, kickbacks, and Medicare exploitation. Despite the explosive allegations and a $0 price target, shares gained over 7%, demonstrating healthcare stocks' resilience to short attacks.
Lab-Grown Diamond Thesis
Firm: The Bear Cave
Target: SIG | Impact: +1.21%
Secular Trend Industry Analysis
The Bear Cave argued that Signet Jewelers faces an existential threat from lab-grown diamonds, which are chemically identical but 1/10th the price. While the thesis may prove correct over time, January saw minimal immediate impact as the stock edged slightly higher.
Strategic Insights
1. Market Conditions Matter
January's 20% success rate underscores how difficult it is to short in a bullish market environment. Even the most detailed fraud allegations struggled to overcome positive sentiment and momentum.
2. Size Matters
The only successful short targeted the smallest company by market cap. Large-cap stocks with institutional backing proved essentially immune to activist pressure this month.
3. Promotional Stocks Remain Vulnerable
Capybara's success with QUBT demonstrates that fraud-focused research on promotional micro-caps remains the most reliable path to short-selling returns.
4. Reputation Alone Isn't Enough
Even Hindenburg Research, with their stellar track record, faced a significant miss. Past success doesn't guarantee future results in activist short selling.
5. Healthcare Stocks Are Resilient
Despite Scorpion's explosive allegations and $0 price target, TMDX gained over 7%. Healthcare companies with unique products often have loyal investor bases that dismiss short reports.
Final Thoughts
Bottom Line
January 2025 will go down as a humbling month for activist short sellers. With targets gaining an average of 3.26% and only one of five campaigns delivering positive returns, the month serves as a stark reminder of the risks inherent in short selling, particularly in bull market conditions.
The stark contrast between Capybara Research's successful fraud-focused campaign on a promotional micro-cap and Hindenburg's failed attack on a large-cap momentum stock illustrates a clear pattern: in today's market, the most reliable short-selling opportunities lie in exposing smaller companies with demonstrably fraudulent practices.
For investors, January's results suggest caution when following even the most reputable short sellers into positions on larger, momentum-driven stocks. The market's appetite for risk and its willingness to overlook serious allegations appears undiminished heading into 2025.
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