RIA

Grandview Asset Management LLC

Greenbrae, CA SEC Registered Investment Advisor High Net Worth CIK: 0001766791
13F Score ?
95
3Y · Top 10 · Mgr Wt
13F Score ?
96
7Y · Top 10 · Mgr Wt
S&P 500 ?
80
Benchmark
$342M
AUM
+0.00%
2026 Q1
+16.74%
1-Year Return
+52.30%
Top 10 Concentration
+6.03%
Turnover
-6.29%
AUM Change
Since 2018
First Filing
137
# of Holdings

Fund Overview

13F Filed: 2026-05-07

As of 2026 Q1, Grandview Asset Management Llc manages $342M in reported 13F assets , holds 137 positions with +52.30% top-10 concentration , and delivered a 1-year return of +16.74% on its disclosed equity portfolio. Filing 13F reports since 2018.

About

Investment Strategy

Analytics Summary

Key Personnel

David Brebner — Managing Member and Chief Investment Officer
Andrew Prout — Managing Member
Official 13F Filings — SEC EDGAR Key personnel and Fund Overview may contain mistakes

Activity Summary — 2026 Q1

Q1 2026 13F Filed: May 7, 2026

Top Buys

% $
Stock % Impact
+1.04%
+0.52%
+0.38%
+0.37%
+0.37%
+0.29%

Top Sells

% $
Stock % Impact
-1.56%
-1.39%
Sold All 😨 Was: 0.99% -1.06%
-0.78%
-0.70%
-0.65%

Top Holdings

2026 Q1
Stock %
19.33%
5.23%
4.83%
4.20%
4.10%
3.86%
View All Holdings

Activity Summary

Latest
Market Value $342M
AUM Change -6.29%
New Positions 8
Increased Positions 41
Closed Positions 10
Top 10 Concentration +52.30%
Portfolio Turnover +6.03%
Alt Turnover +9.39%

Sector Allocation Trends

Quarterly History
Free View: Last 10 Quarters. Subscribe to see full history

Holdings Analysis

Size: % of Portfolio Color: Last Full-Quarter Return No data
Free: 10 quarters

Positions Dynamics

Visualizing Top 20 holdings weight history over the last 10 quarters.

Portfolio Analytics — Latest

Grandview Asset Management LLC risk dashboard covering volatility, beta, value-at-risk, drawdowns, concentration, factor tilts, benchmark comparison, and stress testing for the latest disclosed portfolio.

Risk access
Building institutional risk profile...
Guru Intelligence Hub Pro
Real-time Analytics
High-Conviction Alpha
AAPL 92.4
NVDA 88.1
MSFT 74.3
Strategy Guardian
Style Drift 0.12
Sector Rotation 0.38

Tracking institutional benchmark deviation

Scenario Lab
2008 GFC -32.4%
Covid-19 -18.1%
2022 Bear -24.7%
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Real conviction scores for every holding  ·  Strategy Guardian alerts  ·  Live Scenario Lab stress tests
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Best Strategy vs. Benchmarks

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Returns
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Latest Quarter
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1-Year Return
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Ann. Return
Risk
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Std Deviation
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Max Drawdown
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Beta vs SPY
Quality
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Sharpe
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Sortino
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Win Rate
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Payoff Ratio
Edge Metrics Last 10 quarters only
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Alpha annualized
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Up Capture
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Down Capture

Strategy Backtester: Grandview Asset Management LLC

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Risk insights! Identify periods when the fund lagged the benchmark – critical for timing entries.

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Underperformance Analysis — Top 10 Holdings vs SPY

Backtesting Grandview Asset Management LLC's top 10 holdings against SPY identified 22 underperformance periods. Worst drawdown: 2020-04 – 2020-07 (-16.1% vs SPY, 4 quarters).

Avg. lag: -4.5% vs SPY Avg. duration: 1.9 quarters
Backtest Snapshot — Top 10 Holdings (Mn-Weighted)

The ticker-level breakdown shows how each of Grandview Asset Management LLC's top holdings contributed to portfolio returns quarter by quarter. Strongest recent contributors inside the last 5 years of the quarterly Top 10 backtest window: NVDA (2021 Q2 – 2025 Q4, +72.8 pts), AAPL (2021 Q2 – 2025 Q4, +12.5 pts), MSFT (2021 Q2 – 2025 Q4, +11.4 pts), AVGO (2023 Q2 – 2025 Q4, +8.6 pts), QQQ (2021 Q2 – 2025 Q4, +7.2 pts) .

Strategy ann.: 24.9% SPY ann.: 16.4% Period: 2019–2026
Best Recent Contributors — Last 5Y
1 of 5 recent top contributors lagged SPY, which means even some of this fund's best return drivers still failed to beat a simple index over the same window.
2021 Q2 – 2025 Q4 • 19Q in Top 10 Beat SPY
NVDA
+961%
SPY
+80%
Contrib
+72.8%
2021 Q2 – 2025 Q4 • 17Q in Top 10 Beat SPY
AAPL
+106%
SPY
+102%
Contrib
+12.5%
2021 Q2 – 2025 Q4 • 15Q in Top 10 Lagged SPY
MSFT
+81%
SPY
+95%
Contrib
+11.4%
2023 Q2 – 2025 Q4 • 11Q in Top 10 Beat SPY
AVGO
+388%
SPY
+73%
Contrib
+8.6%
2021 Q2 – 2025 Q4 • 18Q in Top 10 Beat SPY
QQQ
+113%
SPY
+90%
Contrib
+7.2%
Stock return (green = beat SPY)   Stock return (red = lagged SPY)   SPY same period   Cumulative contribution during the last 5 years of the quarterly Mn-weighted Top 10 strategy

Frequently Asked Questions

What does Grandview Asset Management Llc invest in?
Grandview Asset Management employs a growth-oriented investment strategy with concentrated positioning in companies demonstrating above-market appreciation potential. The firm's investment philosophy emphasizes identifying businesses with durable competitive advantages, expanding addressable markets, and management teams capable of executing long-term value creation. Technology sector representation features prominently within the portfolio, reflecting both the firm's Bay Area perspective and the sector's dominance of growth equity opportunity sets over recent market cycles. The investment approach accepts valuation premiums for high-quality growth businesses expected to compound earnings and cash flows at rates justifying elevated multiples. Examination of **13F Portfolio Composition** reveals concentrated holdings in growth-oriented equities spanning technology, consumer discretionary, and communication services sectors. The disclosed positions emphasize companies with demonstrated revenue growth, market leadership, and secular tailwinds supporting continued expansion. **Top 10 Holdings Concentration** metrics indicate the high-conviction nature of the investment approach, with meaningful position sizes in the portfolio's core holdings. This concentration philosophy prioritizes research depth and conviction weighting over broad diversification, accepting elevated position-specific risk in pursuit of differentiated returns. The investment process combines fundamental analysis with attention to industry dynamics and competitive positioning. Security selection targets companies at favorable points in their growth trajectories—established enough to demonstrate business model viability while retaining substantial appreciation runway. **Sector Allocation History** tracking through the platform illuminates the consistency of growth and technology sector orientation over time. Observable patterns reveal whether positioning reflects static conviction in secular themes or tactical adjustment based on evolving opportunity assessment. Portfolio turnover appears moderate, balancing long-term holding orientation with opportunistic position management as valuations and fundamentals evolve. INVESTMENT RISK PROFILE The risk characteristics embedded within Grandview Asset Management's investment approach reflect the concentrated growth equity mandate. Growth factor exposure and technology sector concentration create elevated sensitivity to interest rate movements, risk appetite shifts, and sector rotation dynamics. **Volatility Profile** analysis through historical position replication reveals above-market sensitivity to growth equity drawdowns. The concentrated positioning amplifies factor-driven moves, producing potentially elevated volatility during risk-off environments when growth equities experience multiple compression. **Max Drawdown Depth** examination provides critical context for understanding the portfolio's behavior during market stress. Growth-concentrated strategies historically experience deeper peak-to-trough declines during corrections, though they may demonstrate correspondingly stronger recovery participation during subsequent expansions. Interest rate sensitivity represents a key risk factor for the growth-oriented portfolio. Rising rate environments pressure growth equity valuations as discount rate increases impact the present value of long-duration cash flows. The 2022 market environment demonstrated this sensitivity as growth equities experienced substantial multiple compression during monetary policy normalization. Concentration risk at both position and sector levels requires careful monitoring. Individual holding outcomes significantly impact aggregate portfolio performance, while technology sector concentration creates correlated drawdown exposure during sector-specific dislocations. The **Downside Capture Ratio** illuminates the portfolio's defensive characteristics during declining markets. Growth strategies typically exhibit elevated downside capture relative to conservative approaches, a trade-off accepted in pursuit of superior upside participation during favorable environments.
What is Grandview Asset Management Llc's AUM?
Grandview Asset Management Llc reported $342M in 13F assets as of 2026 Q1. Note: 13F AUM reflects only long equity positions reported to the SEC and may differ from total assets under management.
How concentrated is Grandview Asset Management Llc's portfolio?
Grandview Asset Management Llc holds 137 disclosed positions. The top 10 holdings represent +52.30% of the reported portfolio, indicating a highly concentrated investment approach.
How to track Grandview Asset Management Llc 13F filings?
Track Grandview Asset Management Llc's quarterly filings on SEC EDGAR or on this page — data is updated within days of each filing deadline. Subscribe to 13Foresight for position-change alerts.
Who manages Grandview Asset Management Llc?
Grandview Asset Management Llc is managed by David Brebner (Managing Member and Chief Investment Officer), Andrew Prout (Managing Member).

Disclaimer: 13Foresight is not a registered investment adviser, broker-dealer, or financial planner. All information on this site is provided solely for informational and educational purposes and does not constitute investment advice, a solicitation, or a recommendation to buy or sell any security. Portfolio backtests shown on this page are hypothetical and simulated — they do not represent actual trading results and were constructed with the benefit of hindsight. Actual results would differ materially. 13F filings disclose only long equity positions valued above $10,000, submitted up to 45 days after quarter-end; they do not capture short positions, options, bonds, cash, private investments, or non-U.S. securities. A fund's backtest performance may not reflect its actual returns, as managers frequently generate alpha through strategies not visible in 13F data. Past performance is not indicative of future results. All data sourced from public SEC EDGAR filings. Use at your own risk. Full Terms of Use.

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