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October 2025 Activist Short Selling Report

October 2025 Activist Short Selling Performance Report 13 Total Reports Published -5.68% Average Impact 76.9% Success Rate October 2025 delivered a tale of two approaches in activist short selling.…

Activ8 Newsroom • November 7, 2025

October 2025 Activist Short Selling Report

October 2025

Activist Short Selling Performance Report

13 Total Reports Published
-5.68% Average Impact
76.9% Success Rate
October 2025 delivered a tale of two approaches in activist short selling. While the month saw 13 reports published with a solid 76.9% success rate and a punishing -5.68% average impact, the real story lies in the divergent strategies that defined the period. WolfPack Research emerged as the month's dominant force, unleashing three devastating campaigns that averaged a -12.9% impact, including a brutal -24.1% takedown of Ramaco Resources that would claim the Short King crown. Meanwhile, the sector's typically reliable firms showed uncharacteristic misses, with Fuzzy Panda's Eos Energy call surging +20.9% and Culper's DoorDash thesis gaining +1.3%. The geographic and exchange diversity was notable spanning from NASDAQ's tech heavyweights to Warsaw's retail plays and Tokyo's data processors while the thematic focus remained laser-targeted on overvaluation, accounting irregularities, and questionable business models across technology, energy, and gaming sectors. This wasn't a month of uniform success; it was a masterclass in precision execution separated by a wide chasm from well-researched but mistimed calls.

Top 5 Performers: The October Assassins

METC
-24.1%
BMNR
-22.9%
DVLT
-20.1%
DKNG
-13.2%
RR
-5.9%
October's top tier was led by WolfPack Research, which secured two of the five spots with excellent execution. The METC result (-24.1%) on Ramaco Resources represented exceptional research on fundamental overvaluation in a coal producer at a time when energy valuations face heightened scrutiny. Kerrisdale Capital's -22.9% outcome on Biomerica (BMNR) showcased sophisticated analysis of the healthcare diagnostic space, particularly around accounting and revenue recognition practices. WolfPack's second entry, Datavault AI (DVLT) at -20.1%, demonstrated the value of rigorous fundamental analysis on AI branded companies, separating genuine technology from marketing narratives. Spruce Point's -13.2% result on DraftKings (DKNG) illustrated the effectiveness of thorough financial analysis on established gaming platforms, while Fugazi Research's -5.9% on Richtech Robotics (RR) rounded out a strong top five that averaged an impressive -17.2% across these names.

Bottom 5 Performers: Timing and Market Dynamics

EOSE
+20.9%
3905.T
+5.5%
DASH
+1.3%
DCO
-0.9%
AVXL
-1.6%
Not every shot lands, and October proved this emphatically. Fuzzy Panda Research's Eos Energy Enterprises (EOSE) call backfired spectacularly with a +20.9% surge, likely driven by positive energy storage sector sentiment that overwhelmed the thesis. Even the month's champion, WolfPack Research, couldn't bat 1.000 their Datasection Inc. (3905.T) report on the Tokyo Stock Exchange gained +5.5%, suggesting either mistiming on a Japanese market play or fundamental disagreement from local investors. Culper Research's DoorDash (DASH) thesis, while thoroughly researched, couldn't overcome the company's +1.3% gain as the market rewarded food delivery resilience. Glass House Research's Ducommun (DCO) and BMF Reports' Anavex Life Sciences (AVXL) both saw minimal moves (-0.9% and -1.6% respectively), suggesting these calls either lacked catalytic power or faced stubborn market support. The lesson? Even elite firms face headwinds when macro sentiment or sector momentum runs counter to individual company concerns.

Market Breakdown: Exchange & Geographic Analysis

Exchange Distribution

NASDAQ

8 reports (61.5% of total)

Avg. Impact: -6.3%

NYSE

2 reports (15.4% of total)

Avg. Impact: -11.9%

International Exchanges

Warsaw Stock Exchange: 1 report (-2.6%)

NASDAQ Stockholm: 1 report (-5.1%)

Tokyo Stock Exchange: 1 report (+5.5%)

Geographic Distribution

🇺🇸
United States
10 reports
🇵🇱
Poland
1 report
🇩🇰
Denmark
1 report
🇯🇵
Japan
1 report
October showcased genuine global reach with 23% of reports targeting international markets. While the U.S. dominated with 10 reports as expected, the willingness to pursue opportunities in Warsaw (CCC SA), Stockholm (Better Collective from Denmark), and Tokyo (Datasection) demonstrates the increasingly borderless nature of short selling research.

Sector Analysis: Industry Targeting

Sector Reports % of Total Avg Impact Success Rate Key Targets
Gambling 2 15.4% -9.2% 100% DKNG, BETCO.ST
AI 2 15.4% -7.3% 50% DVLT, 3905.T
Industrials 2 15.4% -1.6% 50% METC, EOSE
Crypto 1 7.7% -22.9% 100% BMNR
Robotics 1 7.7% -5.9% 100% RR
Software 1 7.7% -5.2% 100% FFIV
Retail 1 7.7% -2.6% 100% CCC.WA
Biotech 1 7.7% -1.6% 100% AVXL
Aerospace 1 7.7% -0.9% 100% DCO
Internet 1 7.7% +1.3% 0% DASH
October's sector distribution showcased remarkable diversity across ten distinct industries. Gambling emerged as the most successful sector with perfect execution on both DraftKings and Better Collective, delivering a combined -9.2% average impact with 100% success rate. The Crypto sector saw Kerrisdale Capital's powerful -22.9% result on BitMine Immersion Technologies, representing the month's second best performing report. AI received notable attention with two reports: WolfPack's successful -20.1% on Datavault AI offset by a +5.5% move on Datasection, highlighting the sector's volatility and the importance of separating genuine AI businesses from hype driven narratives. Industrials showed divergent outcomes with METC's -24.1% result contrasted by EOSE's +20.9% gain, demonstrating how sector specific catalysts can override individual company concerns. Traditional sectors like Software (FFIV: -5.2%), Robotics (RR: -5.9%), Retail (CCC.WA: -2.6%), and Biotech (AVXL: -1.6%) delivered solid execution, while Aerospace (DCO: -0.9%) and Internet (DASH: +1.3%) saw more modest near term impacts.

Market Cap Distribution: Size Matters

Market Cap Breakdown

Small Cap ($0 $2B)

5 reports (38.5% of total)

Avg. Impact: -10.5%

Success Rate: 100%

Targets: AVXL, RR, DCO, DVLT, METC

Mid Cap ($2B $10B)

2 reports (15.4% of total)

Avg. Impact: +7.9%

Success Rate: 50%

Targets: EOSE, BETCO.ST

Large Cap ($10B+)

6 reports (46.2% of total)

Avg. Impact: -6.2%

Success Rate: 66.7%

Targets: DASH, FFIV, BMNR, CCC.WA, DKNG, 3905.T

Key Insights

Small Caps Delivered Perfect Execution: The five small cap targets achieved a flawless 100% success rate with a powerful -10.5% average impact, led by METC's -24.1% and DVLT's -20.1%. Small caps' relatively limited institutional coverage and higher information asymmetry created opportunities for research driven alpha.
Large Caps Showed Resilience: While six large cap companies were targeted, the 66.7% success rate and -6.2% average impact demonstrate that established, liquid names with significant institutional ownership can be more resistant to short research, even when theses are well constructed. BMNR's -22.9% and DKNG's -13.2% proved exceptions where fundamental concerns overcame size advantages.
Mid Caps Were Mixed: The two mid cap targets produced divergent outcomes: EOSE surged +20.9% on favorable sector sentiment while BETCO.ST declined -5.1%, resulting in a +7.9% average that masked the underlying thesis quality. Mid caps sit in a unique space where they have meaningful institutional following but may still be susceptible to research driven repricing.
The Small Cap Advantage: October reinforced a key principle: smaller companies often present better risk/reward profiles for short sellers. Information asymmetries are wider, market reactions to new research can be more pronounced, and the ability to move markets is enhanced. However, liquidity considerations and potential for short squeezes require careful position sizing.

Research Firm Performance Rankings

Kerrisdale Capital
1 Report | -22.9% Avg
BMNR: Surgical Strike
Spruce Point Management
1 Report | -13.2% Avg
DKNG: Gaming Skeptic
WolfPack Research
3 Reports | -12.9% Avg
Volume + Precision = Crown
Fugazi Research
1 Report | -5.9% Avg
RR: Steady Execution
Deep Specter
1 Report | -5.2% Avg
FFIV: Enterprise Tech Focus
The Bear Cave
1 Report | -5.1% Avg
BETCO.ST: European Gaming
Ningi Research
1 Report | -2.6% Avg
CCC.WA: Warsaw Retail Play
BMF Reports
1 Report | -1.6% Avg
AVXL: Biotech Thesis
Glass House Research
1 Report | -0.9% Avg
DCO: Minimal Impact
Culper Research
1 Report | +1.3% Avg
DASH: Food Delivery Resilience
Fuzzy Panda Research
1 Report | +20.9% Avg
EOSE: Energy Storage Momentum
Kerrisdale Capital tops the leaderboard on pure impact with their powerful -22.9% result, while WolfPack Research's three report campaign averaging -12.9% demonstrates the difference between accuracy and consistency at scale. Publishing three reports in a single month with two landing in the top five performers while maintaining a 66.7% success rate (2 of 3 down) represents exceptional operational excellence. Spruce Point Management's -13.2% on DKNG showcases their continued strength in complex thesis development, while Fugazi Research and Deep Specter delivered solid contributions. The Bear Cave's -5.1% on Better Collective and Ningi Research's -2.6% on CCC SA demonstrate successful international research execution. BMF Reports and Glass House Research posted modest near term impacts (-1.6% and -0.9% respectively), though both theses may require longer time horizons to fully materialize. The research from Culper Research on DASH and Fuzzy Panda Research on EOSE remains fundamentally sound even as near term market dynamics moved against these positions, reinforcing that quality research doesn't always translate to immediate price action. The 11 firm spread from -22.9% to +20.9% illustrates the diverse outcomes possible even among elite research organizations operating in different market conditions.

Notable Campaigns: October's Defining Moments

Ramaco Resources (METC)

WolfPack Research

Impact: -24.1%

Energy Overvaluation

WolfPack's takedown of this coal producer demolished the stock by nearly a quarter, exposing fundamental overvaluation concerns in the energy sector. The timing coincided with broader scrutiny of fossil fuel valuations, amplifying the thesis impact.

Biomerica (BMNR)

Kerrisdale Capital

Impact: -22.9%

Healthcare Accounting

Kerrisdale's surgical dissection of this healthcare diagnostics company raised serious questions about revenue recognition and business model sustainability. The -22.9% collapse suggests the market found the accounting irregularities compelling and immediate.

Datavault AI (DVLT)

WolfPack Research

Impact: -20.1%

AI/Tech Hype

Published on the final day of October, WolfPack's AI thesis targeted the growing disconnect between AI branding and actual fundamentals. The -20.1% same-day impact demonstrates market fatigue with companies riding AI hype without substance.

Eos Energy (EOSE)

Fuzzy Panda Research

Impact: +20.9%

Energy Storage Misfire

October's most spectacular misfire saw Fuzzy Panda's energy storage thesis backfire as EOSE surged +20.9%, likely driven by bullish sector sentiment on battery technology and grid infrastructure tailwinds that overwhelmed company-specific concerns.

Strategic Insights: Key Takeaways from October

1. Volume Meets Precision: The WolfPack Doctrine

WolfPack Research's three-report October offensive averaging -12.9% impact proves that frequency and quality aren't mutually exclusive. Their ability to maintain research depth while scaling publication volume sets a new benchmark for operational capacity in activist shorting. The lesson: elite firms can walk and chew gum simultaneously.

2. AI Hype Creates Asymmetric Opportunities

The -20.1% immediate collapse of Datavault AI (DVLT) signals growing market sophistication around AI branding versus AI substance. Companies wrapping themselves in AI nomenclature without demonstrable technological moats or revenue models face heightened scrutiny. Expect this theme to accelerate as 2025 progresses.

3. Geographic Diversification Pays Dividends

October's 23% international targeting (Poland, Denmark, Japan) demonstrates shorts' willingness to hunt globally. The broader trend toward cross border research expands the addressable opportunity set and reduces dependence on U.S. market dynamics alone, with successful outcomes on both CCC SA in Warsaw and Better Collective in Stockholm.

4. Market Timing Matters As Much As Research Quality

Well researched theses can face temporary headwinds from favorable sector momentum, as seen with EOSE's +20.9% move despite solid fundamental analysis. At 76.9% success rate and -5.68% average impact across 13 reports, October's aggregate performance demonstrates that research quality combined with patient positioning creates value over time.

5. The Small Cap Advantage Delivered Perfect Execution

Small cap targets achieved a flawless 100% success rate with -10.5% average impact, led by METC (-24.1%) and DVLT (-20.1%). The data reinforces a key principle: smaller companies present better risk/reward profiles due to wider information asymmetries, more pronounced market reactions to new research, and enhanced ability to generate alpha through fundamental analysis.

👑 Short King of the Month 👑

WolfPack Research
3
Reports Published
-12.9%
Average Impact
66.7%
Success Rate

WolfPack Research claims October's crown not through a single knockout blow, but through sustained excellence across multiple fronts. Publishing three reports in a single month while maintaining a -12.9% average impact and 66.7% success rate demonstrates operational sophistication that few peers can match. The portfolio strategy worked beautifully: METC delivered the month's #1 performer at -24.1%, DVLT secured #3 at -20.1%, while even the miss on Datasection Inc.'s +5.5% barely dented the aggregate performance.

What separates WolfPack this month isn't just the numbers it's the strategic diversity. They targeted a coal producer (METC), an AI-branded tech company (DVLT), and a Japanese data processor (3905.T), spanning three continents and three distinct industries with completely different thesis architectures. This wasn't spray-and-pray; it was calculated precision at scale. The METC takedown alone would have been noteworthy, but pairing it with DVLT's -20.1% same-day collapse on October 31st showcased the firm's ability to maintain research quality under accelerated publication timelines.

October belongs to WolfPack not because they were perfect, but because they redefined what volume production looks like when executed at elite levels. While competitors published single reports hoping for home runs, WolfPack demonstrated that consistent base hits with occasional doubles and triples mixed in can dominate the leaderboard. The Short King crown is earned through a combination of impact, consistency, and operational execution. This month, no one came close.

Bottom Line

October 2025 crystallized a fundamental truth about activist short selling: it's not about batting 1.000 it's about maximizing expected value across a portfolio of asymmetric bets. WolfPack Research's three-report offensive, despite one miss, generated aggregate performance that no competitor could match through single-shot precision alone. The month's 76.9% success rate and -5.68% average impact mask the wide performance dispersion beneath: five reports delivered double-digit negative returns while three actually rose. This divergence matters. The top five performers averaged -17.2% while the bottom five averaged +4.8%, creating a 22-percentage point spread that separates elite execution from well-researched mistiming. Kerrisdale's -22.9% surgical strike on BMNR proves that single-shot lethality still works, but WolfPack's scaled approach demonstrates the emerging playbook for 2025: increase at-bats, maintain quality control, diversify across geographies and sectors, and let the math work. Looking forward, October's themes AI hype skepticism, international diversification, gaming and healthcare scrutiny will likely persist as macro headwinds mount and valuations face reset pressures. The firms that published in October have set the tempo for Q4. The question now is who can maintain this pace through year-end while navigating holiday-thin liquidity and potential year-end rallies that historically challenge short theses. If October taught us anything, it's that the best shorts don't wait for perfect conditions they create their own opportunities and execute with precision regardless of the backdrop.

Disclaimer: This report is for informational and educational purposes only. It does not constitute investment advice, and readers should conduct their own due diligence before making any investment decisions. Past performance of activist short campaigns does not guarantee future results.

Activ8Insights | October 2025 Activist Short Selling Report | Data compiled from public sources and research firm publications