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Quarter	Letter Date	Fund Name	QTD	YTD	Tickers	Themes	Quick Take

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Parnassus Growth Equity Fund 2026 Q3 Investor Letter | Buyside Digest

Back to Fund Profile (Parnassus Growth Equity Fund)

Primary Source Intelligence • Q3 2026 Letter Analysis

Parnassus Growth Equity Fund Quarterly Analysis

Buyside Digest is not affiliated with, and does not endorse, Parnassus Growth Equity Fund. This analysis is provided for institutional research purposes only and is not investment advice.

Fund Returns

QTD+4.44%

YTD+10.88%

Annualized+26.63%

Positioning StanceCONSTRUCTIVE

Market CapLarge Cap

GeographyUS

Digest Analysis

Quick Take

"Driven by strong selection gains in Health Care and software technology leaders like Twist Bioscience and Natera, while maintaining an unchanged portfolio roster and underweighting mega-cap semiconductor exposure."

Executive Summary

Parnassus Growth Equity Fund (Investor Shares) posted a net return of 4.44% in the third quarter of 2026, significantly outperforming the Russell 1000 Growth Index benchmark return of 0.92%. For the year-to-date period, the strategy delivered a net return of 10.88% against 6.30% for the benchmark index. Relative outperformance was primarily driven by stock selection in Health Care and Information Technology, partially offset by an underweight posture in Energy and holdings in Materials. The strategy closed the quarter with an active underweight in Information Technology (46.3% of total net assets versus 56.5% for the benchmark), active overweights in Health Care (13.0% vs. 5.4%), Materials, and Financials, zero allocation to Energy, Real Estate, or Utilities, and a cash reserve of 0.4%. The investment team operates against a macroeconomic regime characterized by persistent inflation, elevated interest rates following Federal Reserve monetary tightening, geopolitical friction from the Iran conflict disrupting global energy supplies, and shifting trade tariff policies. While acknowledging that short-term equity markets have been driven by narrative-fueled momentum rather than fundamentals—punishing earnings misses and software business models vulnerable to artificial intelligence disruption—the managers maintain that structural enterprise investment in artificial intelligence compute and cross-sector productivity gains will support durable equity appreciation. Portfolio activity was exceptionally restrained during the quarter, with zero position initiations or complete exits executed, other than the immediate liquidation of shares received from the Mobility Global spin-off via S&P Global. Capital allocation remained anchored in high-conviction holdings across healthcare technology leaders such as Twist Bioscience and Natera, alongside infrastructure bottleneck providers including GE Vernova and Comfort Systems USA. Top portfolio weightings remain anchored by mega-cap technology leaders NVIDIA (11.3%), Alphabet (10.5%), and Meta Platforms (4.9%).

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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

Market Conviction

68%

CautiousHigh

Moderate (68%)

Portfolio conviction is anchored by high concentration in top ideas, with the ten largest holdings comprising approximately 53% of total net assets and zero trading turnover executed during the quarter. The managers deliberately hold an active underweight in benchmark giant NVIDIA and zero exposure to Energy or Utilities, expressing disciplined divergence from the index. Conviction is moderately tempered by a diversified 30-plus position roster and a self-described balanced stance between offensive growth and defensive preservation.

Growth Outlook

58%

BearishBullish

Neutral (58%)

The outlook balances optimism regarding long-term structural innovation against serious macroeconomic crosscurrents including restrictive Fed policy, inflation, and shifting tariffs. The team explicitly identifies heightened market sensitivity to earnings misses and volatile narrative trading. Consequently, directional market expectations are constructive but clearly restrained by late-cycle realities.

Risk Appetite

58%

DefensiveAggressive

Balanced (58%)

Capital remains nearly fully deployed in equities with cash held at a negligible 0.4%, reflecting an active posture in growth assets. However, portfolio construction deliberately tempers semiconductor beta through active underweights and diversifies into healthcare diagnostics, infrastructure backlogs, and multiyear service contracts. This defensive overlay prevents an aggressive risk-on designation.

Capital Deployment

50%

De-riskingDeploying

Net Neutral (50%)

Capital deployment was perfectly neutral during the period, with zero new positions established and no core holdings terminated. Cash reserves remained steady at a minimal 0.4% of fund net assets, while trading was restricted to position size rebalancing and liquidating an unsolicited corporate spin-off.

Forward Guidance

54%

CautiousExpansionary

Neutral (54%)

Management signals patience and selectivity, noting an intention to stay nimble and exploit macroeconomic volatility to initiate new positions without signaling immediate deployment. The team did not initiate or exit a single core holding during the quarter, demonstrating an observational, wait-for-opportunity posture. Forward actions are explicitly conditioned on strict valuation discipline and earnings durability.

Language Signal

56%

BearishBullish

Balanced (56%)

Tone is balanced between constructive vocabulary regarding long-term innovation, strong corporate demand, and productivity catalysts, and cautious language detailing headwinds, political backlash, sell-offs, and disruption. The frequency of words such as 'headwinds', 'pressure', 'underperformed', and 'unforgiving' neutralizes the positive impact of secular growth terms.

Perceived Risk

62%

Low RiskElevated

Moderate Risk (62%)

Management expresses meaningful concern regarding external risks, directly identifying military conflict in Iran, escalating oil prices, persistent inflation, elevated interest rates, shifting trade tariffs, and political pushback against data centers. The letter characterizes market dynamics as unforgiving toward misses, reflecting an elevated perception of macroeconomic and structural fragility.

Opportunity Density

58%

ScarceAbundant

Selective (58%)

The managers view compelling opportunities as existing primarily within idiosyncratic niches like AI infrastructure bottlenecks and precision medicine rather than broad market segments. They explicitly warn that capital is crowding into a narrow set of opportunities, requiring heightened selectivity regarding valuations and expectations. This dynamic produces a moderate, selective opportunity set rather than an expansive one.

Time Horizon

72%

Short-TermLong-Term

Decade+ (72%)

Investment rationale is oriented around multiyear secular themes including artificial intelligence integration, clinical oncology adoption, and multiyear turbine equipment backlogs. The team dismissed short-term weather headwinds at Viking and quarterly sentiment gyrations at StandardAero as overblown. The fund is explicitly built to compound through intermediate economic cycles rather than chasing quarterly catalysts.