GAGNON SECURITIES LLC

Gagnon Securities LLC is a New York-based investment firm that files quarterly 13F reports with the U.S. Securities and Exchange Commission under CIK #0001125725. Founded by Neil Gagnon, who serves as Managing Member and Chief Investment Officer, the firm has established a distinctive niche as a specialist in small-capitalization and micro-capitalization equity investing — a segment of the market where deep fundamental research and specialized expertise can generate meaningful informational advantages over larger, more generalist investment organizations. The firm operates with a dual registration structure as both a broker-dealer and an investment advisor, a configuration that provides operational flexibility in how it engages with markets and serves its client base. This dual-registered model enables Gagnon Securities to combine principal investment activities with advisory and brokerage functions, creating a multi-faceted platform that leverages the firm's small-cap analytical expertise across multiple business lines. The broker-dealer registration reflects the firm's active market participation and its ability to facilitate transactions in the smaller, less liquid securities that constitute its area of specialization. Neil Gagnon has built a career around the conviction that the small-cap and micro-cap segments of the U.S. equity market offer the richest hunting ground for fundamental stock pickers. These market segments are characterized by thinner sell-side research coverage, lower institutional ownership, wider informational asymmetries, and greater pricing inefficiency than their large-cap counterparts — conditions that reward patient, research-intensive investment approaches with the potential for outsized returns. Under his leadership, the firm has cultivated deep expertise in identifying and evaluating emerging businesses at early stages of their growth trajectories, often before they attract meaningful institutional attention. Headquartered in New York City, Gagnon Securities operates from the financial capital of the United States, with access to the infrastructure, counterparty networks, and information flows that support active investment management. The firm's long 13F filing history — extending back to the early 2000s — provides an extensive multi-cycle record of its small-cap positioning decisions. The platform's 13F history tools enable users to access this complete filing archive and trace the evolution of the firm's disclosed equity positions across more than two decades of market environments, capturing its investment behavior through the dot-com aftermath, the 2008 financial crisis, the post-crisis small-cap rally, and subsequent market cycles.

Gagnon Securities LLC employs a fundamentally driven, bottom-up investment strategy with a primary focus on small-capitalization and micro-capitalization equities. The investment philosophy is built on the premise that the smallest segments of the public equity market harbor the most significant mispricings, the greatest information gaps, and consequently the most attractive opportunities for patient, research-oriented investors willing to do the analytical work that larger institutions often cannot economically justify. The firm's research process is characterized by an intensive, company-by-company evaluation approach. At the small-cap and micro-cap level, quantitative screening is a starting point rather than an endpoint — each investment opportunity requires deep qualitative assessment of management quality, business model viability, competitive positioning, addressable market size, and the specific catalysts that will drive market recognition of embedded value. Neil Gagnon's decades of experience in this market segment provide the pattern recognition and industry knowledge that accelerate this evaluation process and reduce the risk of value traps that can be particularly prevalent among smaller companies. The investment style leans toward growth — identifying small companies with accelerating revenue trajectories, expanding addressable markets, or transformative product cycles that position them for multi-year compounding. However, the approach is not purely growth-at-any-price; valuation discipline is evident in the portfolio's composition, with the firm often entering positions at what it perceives to be favorable entry points relative to the growth potential embedded in the business. This blend of growth identification and valuation awareness places the strategy in a growth-at-reasonable-price (GARP) framework adapted for the small-cap universe. The 13F Portfolio Composition across the firm's extensive filing history reveals a portfolio that is diversified across sectors but unified by the common thread of small market capitalization. Unlike sector specialists who concentrate their expertise within a single domain, Gagnon Securities applies its small-cap analytical methodology across the full spectrum of industries — technology, healthcare, consumer, industrials, energy, and financial services. This sector-agnostic approach within the capitalization constraint reflects the firm's belief that the small-cap premium is accessible across industries and that the most attractive opportunities may emerge in any sector depending on the prevailing economic and market conditions. Position construction tends toward a relatively broad portfolio of holdings, reflecting both the opportunity set available in the small-cap universe and the risk management benefits of diversification when investing in individually volatile, less liquid securities. Each position may represent a modest weight in the overall portfolio, though conviction-driven allocations can result in meaningful concentration among the firm's highest-confidence ideas. The Sector Allocation History across filing periods provides granular visibility into the firm's sector rotation patterns and whether its cross-sector approach has systematically favored certain industries during different market environments. Turnover is estimated at moderate levels, reflecting a balance between the patient holding periods required for small-cap growth theses to mature and the tactical responsiveness necessary to manage the heightened volatility and information flow dynamics of smaller company investing. Small-cap positions may be held for extended periods as the firm awaits catalyst realization, but they may also be trimmed or exited when the risk-reward profile deteriorates or when positions achieve target valuations. The platform's backtesting service enables users to reconstruct the historical capital trajectory implied by the firm's quarterly repositioning decisions across its full multi-decade filing history. A distinctive element of Gagnon Securities' approach is the potential for early-stage identification of companies that subsequently grow into mid-cap or large-cap businesses. The firm's long filing history may contain examples of positions initiated when companies were micro-cap or small-cap entities that subsequently appreciated by multiples as they scaled, attracted institutional attention, and garnered sell-side research coverage. These "multi-bagger" outcomes represent the highest-impact return drivers within small-cap portfolios and are a key analytical feature observable through longitudinal filing analysis.

Gagnon Securities LLC presents one of the most analytically distinctive profiles within the 13F filing universe — a long-tenured, founder-led small-cap and micro-cap specialist with a multi-decade filing record that provides exceptional depth for studying the behavior of a dedicated small-capitalization equity strategy across numerous complete market cycles. Filing under CIK #0001125725, the firm's quarterly 13F disclosures offer a comprehensive record of its positioning within the least-covered, most analytically demanding segment of the U.S. public equity market. Key analytical characteristics include: an exclusive focus on the small-cap and micro-cap universe that creates a portfolio profile fundamentally different from large-cap-oriented managers; a growth-oriented investment style applied across a diversified sector base, unified by the common thread of market capitalization rather than industry focus; a moderate turnover profile that balances patient thesis development with tactical risk management; and the dual broker-dealer and investment advisory structure that provides multiple channels for market engagement. The Annualized Return (CAGR) computed from the firm's disclosed positions across its full multi-decade filing history offers a powerful measure of long-term compounding behavior within the small-cap universe. This extended time series captures the impact of numerous small-cap leadership and lagging cycles, enabling analysis of the strategy's structural return characteristics independent of any single market regime. The platform's portfolio simulator allows users to rescale these disclosed positions to a chosen starting capital and evaluate the historical replication of the firm's small-cap approach across more than twenty years of market environments. The depth of the firm's filing history creates distinctive analytical opportunities: identifying the frequency and magnitude of multi-bagger outcomes within the portfolio; comparing the portfolio's behavior during small-cap bull and bear cycles; evaluating the firm's hit rate on new position initiations across different market environments; and assessing whether the strategy's sector composition has evolved over time in response to structural shifts in the small-cap opportunity landscape. A critical diagnostic question for ongoing monitoring: how does Gagnon Securities' concentrated micro-cap and small-cap portfolio perform during the critical liquidity transition points in market cycles — specifically, when institutional risk appetite shifts from small-cap expansion to large-cap consolidation, does the firm's deep small-cap expertise enable it to identify and retain the highest-quality positions that survive the liquidity withdrawal, or does the systematic de-rating of the size factor overwhelm individual security selection, creating unavoidable drawdown exposure that can only be managed through position sizing and diversification rather than analytical skill?

The risk characteristics of Gagnon Securities LLC are fundamentally shaped by its small-cap and micro-cap focus, which introduces a distinct constellation of risk factors that differ materially from those associated with large-cap or diversified equity strategies. Understanding these risks is essential for allocators evaluating the firm's fit within a broader portfolio context. Liquidity risk is the most prominent structural concern for any small-cap specialist. Micro-cap and small-cap equities frequently trade with limited daily volume, wide bid-ask spreads, and shallow order book depth. During periods of market stress, liquidity in these securities can deteriorate dramatically, creating conditions where the firm may be unable to exit positions at reasonable prices or in desired timeframes. This illiquidity premium is both a source of potential excess return — investors are compensated for accepting liquidity risk — and a structural vulnerability during market dislocations when forced selling can cascade through thinly traded securities. Volatility risk is elevated relative to large-cap benchmarks. Small-cap and micro-cap equities exhibit higher individual-security volatility, wider return dispersion, and greater sensitivity to company-specific developments than their larger counterparts. A single earnings miss, management departure, or product setback can generate price declines of 20% to 50% or more in a single session for smaller companies, and the concentrated impact of such events on portfolio returns can be significant. The Max Drawdown Depth observable through the firm's extensive filing history provides a critical lens for understanding how these company-specific risks aggregate into portfolio-level drawdown behavior across multiple market cycles. Small-cap factor risk creates systematic exposure to the size factor — the historical tendency of smaller companies to outperform larger companies over long periods but to underperform during risk-off environments, economic contractions, and periods of flight to quality. During market stress, investors typically reduce exposure to smaller, less liquid holdings in favor of the perceived safety of large-cap blue chips, creating a systematic headwind for small-cap portfolios. The 2008 financial crisis, the COVID-19 market crash, and various risk-off episodes throughout the firm's filing history provide natural laboratories for evaluating how the portfolio's small-cap exposure behaves during these factor rotations. Information risk is inherent in the small-cap investment process. Smaller companies typically have less robust financial disclosure, fewer external auditing checks, weaker corporate governance structures, and more limited regulatory oversight than larger public companies. These information gaps create the analytical opportunities that the firm seeks to exploit but also introduce the risk of undiscovered liabilities, accounting irregularities, or governance failures that can destroy shareholder value with limited warning. The Top 10 Holdings Concentration metric provides insight into the degree to which portfolio outcomes are dependent on the firm's largest positions versus the broader diversification of the small-cap portfolio. A more diversified position structure helps mitigate the company-specific volatility risk inherent in micro-cap investing, while higher concentration amplifies both upside potential and downside exposure. The Volatility Profile derived from filing-to-filing changes in the firm's disclosed portfolio value captures the aggregate risk cadence of the small-cap approach over time. Given quarterly observation intervals, this metric may understate the true intra-quarter volatility experienced by the portfolio, as small-cap securities can exhibit significant price swings within a single quarter that are smoothed by the reporting frequency.