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Quarter	Letter Date	Fund Name	QTD	YTD	Tickers	Themes	Quick Take

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Brown Advisory Mid-Cap Growth Strategy 2026 Q3 Investor Letter | Buyside Digest

Back to Fund Profile (Brown Advisory Mid-Cap Growth Strategy)

Primary Source Intelligence • Q3 2026 Letter Analysis

Brown Advisory Mid-Cap Growth Strategy Quarterly Analysis

Buyside Digest is not affiliated with, and does not endorse, Brown Advisory Mid-Cap Growth Strategy. This analysis is provided for institutional research purposes only and is not investment advice.

Fund Returns

QTD-2.7%

YTD+4%

Annualized+11.4%

Positioning StanceCONSTRUCTIVE

Market CapMid Cap

GeographyUS

Digest Analysis

Quick Take

"Brown Advisory Mid-Cap Growth Strategy returned -2.7% net in Q3 2026, driven by strong outperformance in AI software beneficiaries like Snowflake and Cloudflare, while reallocating capital into aerospace, optical infrastructure, and specialty manufacturing."

Executive Summary

During the third quarter of 2026, the Brown Advisory Mid-Cap Growth Composite delivered a net return of -2.7% (-2.5% gross), outperforming the benchmark Russell Midcap Growth Index, which declined 5.8% (down approximately 6%). Year-to-date, the strategy has generated a net return of 4.0% compared to 1.0% for the benchmark. Portfolio turnover reached approximately 15% during the quarter amid heightened single-stock dispersion. Cash and cash equivalents stood at 3.1% as of September 30, 2026, with active share at 65.7% across 67 equity holdings. The broader market regime was dominated by macroeconomic and geopolitical volatility following renewed conflict in Iran and rising energy costs, with crude oil briefly topping $100 per barrel. In response to persistent inflation, the Federal Reserve instituted a 25 basis point short-term rate hike in September, sending 10-Year Treasury yields up 85 basis points to 5.29%. This spurred a rotation favoring size and value over growth, while triggering a sharp reversal in the high-beta artificial intelligence infrastructure trade as investors scrutinized capital expenditure and financing. Portfolio management actively rotated capital by eliminating ten positions and initiating seven new ones. Complete divestments included Arxis, Inc. on valuation, along with regulatory and fundamental exits in Equifax, Fair Isaac Corporation, and CoStar Group. Capital was redeployed into durable compounders with visible demand, highlighted by new positions in Lumentum Holdings, ATI Inc, Rocket Lab Corporation, Valmont Industries, and Plexus Corp, while software compounders Snowflake and Cloudflare served as the primary performance contributors.

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Institutional Meta Strategy

Meta Strategy Gauges

Algorithmic conviction, macroeconomic posture, and risk appetite signals extracted from this quarterly letter with qualitative explanations.

Signal Matrix

65%

CautiousHigh

Moderate (65%)

Market Conviction

A disciplined, diversified strategy holding 67 positions with 28.0% concentration in its top ten holdings and an active share of 65.7%. The manager demonstrated decisive conviction by exiting ten positions entirely due to thesis drift or valuation caps while establishing seven new high-conviction positions. It does not score higher because exposure remains spread across dozens of names rather than concentrated in a narrow basket.

45%

BearishBullish

Neutral (45%)

Growth Outlook

A score of 0.45 denotes a mildly cautious macro perspective given rising interest rates, 10-Year Treasury yields spiking to 5.29%, and oil surpassing $100 per barrel amid geopolitical conflict. While the team remains constructive on bottom-up compounding opportunities, they acknowledge that high-beta growth stocks face persistent multiple compression. The tone is pragmatic, balancing macroeconomic headwinds with bottom-up business fundamentals.

55%

DefensiveAggressive

Balanced (55%)

Risk Appetite

Risk appetite is scored at 0.55 as the manager remains nearly fully invested with cash at just 3.1%, but tilted active sector weightings toward higher-margin, regulated, or supply-constrained industrial and IT businesses. Portfolio management actively eliminated regulatory-challenged names and high-multiple IPOs while adding lower-valuation, defensive industrials and utilities.

65%

De-riskingDeploying

Net Neutral (65%)

Capital Deployment

Capital deployment is scored at 0.65 as portfolio turnover reached approximately 15% during the quarter. Capital was rapidly recycled from ten fully closed positions and redirected into seven newly initiated holdings, while cash reserves remained lean at 3.1%.

70%

CautiousExpansionary

Expansionary (70%)

Forward Guidance

Forward guidance stands at 0.70 due to an active, selective deployment bias following single-stock market volatility. The team utilized pullbacks to initiate seven new equity holdings across aerospace, optical components, and utility infrastructure, indicating an active readiness to exploit mispricings rather than harvest cash.

55%

BearishBullish

Balanced (55%)

Language Signal

Directional language balances substantial discussions of valuation resets, regulatory scrutiny, and macro inflation pressures against positive vernacular such as high barriers to entry, record backlogs, and multi-year secular growth. The text avoids euphoric optimism, maintaining a rigorous institutional evaluation across both gainers and detractors.

65%

Low RiskElevated

Elevated Risk (65%)

Perceived Risk

Prominent analysis of macroeconomic threats, including renewed Middle East warfare, crude oil spikes over $100, renewed Federal Reserve rate hikes, and mounting federal regulatory actions against credit bureaus. These macro risks are viewed as meaningful headwinds influencing market breadth.

70%

ScarceAbundant

Abundant (70%)

Opportunity Density

An abundant set of idiosyncratic opportunities created by elevated market dispersion. While acknowledging that broad AI hardware multiples corrected, the managers found compelling risk/reward setups in optical lasers, space launch infrastructure, grid modernizers, and mid-market advisory firms.

75%

Short-TermLong-Term

Decade+ (75%)

Time Horizon

The manager operates on an explicit 3- to 5-year compounding horizon, referencing multi-year backlog delivery through 2027-2029 and full-cycle business holding periods. Valuations and portfolio rotations are explicitly governed by 3-year target prices and multi-year structural earnings drivers.