13F Insight
DOSSIER · 13F-HR · Q3 2026

Brewster Financial Planning LLC

$181M in tracked AUM across 31 positions as of Q3 2026.

BF
CIK 0001898145 · last filed Sep 30, 2026
Total AUM
$181M
as of Q3 2026
Holdings
31
—
positions
Whale Score
72
72
strong
Activity
—
no data
changes this Q
AI Analysis · Q3 2026
Comprehensive Analysis of Brewster Financial Planning LLC SEC 13F Filing
1. Portfolio Overview

The filing for Brewster Financial Planning LLC reveals a dramatic transformation in the firm's portfolio management structure during the quarter ending December 31, 2025. The total portfolio value surged by +1994.3%, growing from $7.77 million to $162.73 million. This exponential increase—nearly a 20-fold rise—is not indicative of mere market performance but rather a massive structur...

The portfolio composition is highly concentrated, consisting of only 26 holdings. The strategy is heavily reliant on Exchange Traded Funds (ETFs), which account for approximately 98.4% ($160.16M) of the total assets. The remaining ~1.6% is allocated across individual equities in Financial Services, Energy, and Communication Services. The top 10 holdings constitute 93.8% of the portfolio, indicating a "core-satellite" approach where the vast majority of assets are invested in a few core beta funds, with minimal exposure to idiosyncratic single-stock risk.

2. Key Holdings
Analysis generated by 13F Insight from SEC Form 13F filing data · Q3 2026. Methodology

Quarter at a glance — Q3 2026

Position-change comparison pending.

No quarter-over-quarter changes available.

Top 10 holdings

By portfolio weight as of Q3 2026.

#HoldingValueSharesWeight
01
IWB
ISHARES TR
$49M117K26.8%02
EFA
ISHARES TR
$34M324K18.6%03
IWM
ISHARES TR
$22M80K12.2%04
BIV
VANGUARD BD INDEX FDS
$22M303K12.1%05
BSV
VANGUARD BD INDEX FDS
$19M248K10.4%06
ICF
ISHARES TR
$12M184K6.4%07
SUB
ISHARES TR
$4M35K2.0%08
VTEB
VANGUARD MUN BD FDS
$4M77K2.0%09
EAGG
ISHARES TR
$3M69K1.7%10
DFAC
DIMENSIONAL ETF TRUST
$2M35K0.9%

Filing history

2026Q3Sep 30
$181M▼ 0.4%
31 positionsView →2026Q2Jun 30
$182M▲ 10.2%
30 positionsView →2026Q1Mar 31
$165M▲ 1.6%
26 positionsView →2025Q4Dec 31
$163M▲ 2.3%
26 positionsView →2025Q3Sep 30
$159M▲ 7.3%
27 positionsLocked2025Q2Jun 30
$148M▲ 9.6%
26 positionsLocked2025Q1Mar 31
$135M▲ 2.5%
25 positionsLocked2024Q4Dec 31
$132M▲ 2.4%
26 positionsLocked2024Q3Sep 30
$129M▲ 8.5%
20 positionsLocked2024Q2Jun 30
$119M▲ 2.3%
19 positionsLocked2024Q1Mar 31
$116M▲ 5.2%
16 positionsLocked2023Q4Dec 31
$111M▲ 10.7%
16 positionsLocked
Showing 12 of 20