CIK: 0001898145
Total reported value
$165.3M
Reporting period: 2026-03-31 · Number of holdings: 26
Brewster Financial Planning LLC disclosed 26 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $165.3M and a quarterly turnover rate of 3.2%.
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Brewster Financial Planning LLC's disclosed holdings carry a Herfindahl concentration index of 0.156 — mathematically equivalent to about 6 equally-sized positions, well below its 26 actual disclosed holdings. That gap points to a strategy built around a small core of high-conviction bets rather than broad diversification.
Position sizes vary widely across the portfolio (a coefficient of variation of 1.78), with a handful of outsized bets alongside many smaller positions.
Recent activity leans toward adding more aggressively to already-large existing positions than to newly initiated ones (a 10.3 percentage-point tilt) — a pattern consistent with a momentum-following approach.
Sector classification currently covers about 1% of this portfolio's disclosed value; the remainder includes holdings (e.g. unmapped tickers, options, or other security types) not yet covered by our sector mapping.
Trim IWB
+2.2% -$1.1M
Add ICF
+4.5% $849.6K
Add IWM
+3.1% $748.1K
Add EFA
+1.6% $841.0K
Add VTEB
+11.3% $292.8K
Add SUB
+10.5% $272.7K
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | IWB | Ishares Russell 1000 ETF | ETF-Other | 25.88% | -1.07% | +2.15% | |
| 2 | EFA | Ishares Msci Eafe ETF | ETF-Other | 19.22% | +0.21% | +1.56% | |
| 3 | BIV | Vanguard Intermediate-term B | ETF-Other | 13.48% | +0.03% | +2.70% | |
| 4 | IWM | Ishares Russell 2000 ETF | ETF-Small Cap | 12.24% | +0.26% | +3.07% | |
| 5 | BSV | Vanguard Short-term Bond ETF | ETF-Other | 11.39% | -0.06% | +1.58% | |
| 6 | ICF | Ishares Select U.s. Reit ETF | ETF-Other | 6.62% | +0.41% | +4.52% | |
| 7 | VTEB | Vanguard Tax-exempt Bond ETF | ETF-Other | 1.88% | +0.15% | +11.30% | |
| 8 | SUB | Ishares Short-term National | ETF-Other | 1.77% | +0.14% | +10.50% | |
| 9 | EAGG | Ishares Esg Aware US Aggrega | ETF-Other | 1.40% | -0.03% | -0.31% | |
| 10 | DFAC | Dimensional US Core Equity 2 | ETF-Other | 0.84% | -0.03% | — | |
| 11 | VEU | Vanguard Ftse All-world Ex-u | ETF-Other | 0.72% | — | — | |
| 12 | ESGD | Ishares Trust Ishares Esg Aw | ETF-Other | 0.64% | -0.01% | -0.22% | |
| 13 | DFAX | Dimensional World Ex US Core | ETF-Other | 0.51% | — | -1.38% | |
| 14 | ESML | Ishares Esg Aware Msci USA S | ETF-Other | 0.47% | — | -0.85% | |
| 15 | ESGU | Ishares Esg Aware Msci USA | ETF-Other | 0.41% | -0.02% | — | |
| 16 | L | Loews CORP | Stock-Financials | 0.31% | — | — | |
| 17 | VTI | Vanguard Total Stock Mkt ETF | ETF-Other | 0.28% | -0.03% | -0.95% | |
| 18 | MPC | Marathon Petroleum CORP | Stock-Energy | 0.28% | +0.09% | — | |
| 19 | VTIP | Vanguard Short-term Tips | ETF-Other | 0.24% | -0.01% | — | |
| 20 | CVX | Chevron CORP | Stock-Energy | 0.24% | +0.06% | -0.26% | |
| 21 | WFC | Wells Fargo & Co | Stock-Financials | 0.24% | -0.04% | +0.49% | |
| 22 | GOOG | Alphabet Inc-cl C | Stock-Comm Services | 0.21% | -0.02% | — | |
| 23 | EUSB | Ishr Esg Advn Universal Bd-$ | ETF-Other | 0.19% | -0.01% | — | |
| 24 | SPTM | Ss Spdr P S&p 1500 Comp ETF | ETF-Other | 0.18% | -0.01% | — | |
| 25 | SCHO | Schwab Short-term US Treas | ETF-Other | 0.18% | — | — | |
| 26 | BRK-B | Berkshire Hathaway Inc-cl B | Stock-Other | 0.18% | -0.01% | — |
Performance for Q3 2026
+2.9%
Performance Last 4 Quarters
+16%
Based on 75% of reported portfolio value with available pricing
| Period | Holdings | Total value | Stability | Top holdings |
|---|---|---|---|---|
| 2026-03-31 | 26 | $165.3M | 3 | |
| 2025-12-31 | 26 | $162.7M | 3 | |
| 2025-09-30 | 27 | $159.0M | 16 | |
| 2025-06-30 | 26 | $148.2M | 0 | |
| 2025-03-31 | 25 | $135.3M | 0 | |
| 2024-12-31 | 26 | $132.0M | 0 | |
| 2024-09-30 | 20 | $129.0M | 0 | |
| 2024-06-30 | 19 | $118.9M | 0 | |
| 2024-03-31 | 16 | $116.3M | 0 | |
| 2023-12-31 | 16 | $110.6M | 0 | |
| 2023-09-30 | 15 | $99.9M | 0 | |
| 2023-06-30 | 15 | $103.5M | 0 | |
| 2023-03-31 | 13 | $99.7M | 0 | |
| 2022-12-31 | 13 | $94.4M | 0 | |
| 2022-09-30 | 12 | $85.6M | 0 | |
| 2022-06-30 | 12 | $90.0M | 0 | |
| 2022-03-31 | 13 | $104.0M | 0 | |
| 2021-12-31 | 13 | $110.0M | 0 |
Brewster Financial Planning LLC's most significant position changes for 2026-03-31: Add: Ishares Russell 1000 ETF (IWB) — shares +2.15%; Add: Ishares Select U.s. Reit ETF (ICF) — shares +4.52%; Add: Ishares Russell 2000 ETF (IWM) — shares +3.07%; Add: Ishares Msci Eafe ETF (EFA) — shares +1.56%; Add: Vanguard Tax-exempt Bond ETF (VTEB) — shares +11.30%.
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | ICF | Ishares Select U.s. Reit ETF | +0.4% | +4.52% | Add |
| 2 | IWM | Ishares Russell 2000 ETF | +0.3% | +3.07% | Add |
| 3 | EFA | Ishares Msci Eafe ETF | +0.2% | +1.56% | Add |
| 4 | VTEB | Vanguard Tax-exempt Bond ETF | +0.2% | +11.30% | Add |
| 5 | SUB | Ishares Short-term National | +0.1% | +10.50% | Add |
| 6 | MPC | Marathon Petroleum CORP | +0.1% | — | Unchanged |
| 7 | CVX | Chevron CORP | +0.1% | -0.26% | Trim |
| 8 | BIV | Vanguard Intermediate-term B | 0% | +2.70% | Add |
| 9 | VEU | Vanguard Ftse All-world Ex-u | — | — | Unchanged |
| 10 | DFAX | Dimensional World Ex US Core | — | -1.38% | Trim |
| 11 | ESML | Ishares Esg Aware Msci USA S | — | -0.85% | Trim |
| 12 | L | Loews CORP | — | — | Unchanged |
| 13 | SCHO | Schwab Short-term US Treas | — | — | Unchanged |
| 14 | BRK-B | Berkshire Hathaway Inc-cl B | 0% | — | Unchanged |
| 15 | SPTM | Ss Spdr P S&p 1500 Comp ETF | 0% | — | Unchanged |
| 16 | VTIP | Vanguard Short-term Tips | 0% | — | Unchanged |
| 17 | ESGD | Ishares Trust Ishares Esg Aw | 0% | -0.22% | Trim |
| 18 | EUSB | Ishr Esg Advn Universal Bd-$ | 0% | — | Unchanged |
| 19 | ESGU | Ishares Esg Aware Msci USA | 0% | — | Unchanged |
| 20 | GOOG | Alphabet Inc-cl C | 0% | — | Unchanged |
| 21 | DFAC | Dimensional US Core Equity 2 | 0% | — | Unchanged |
| 22 | VTI | Vanguard Total Stock Mkt ETF | 0% | -0.95% | Trim |
| 23 | EAGG | Ishares Esg Aware US Aggrega | 0% | -0.31% | Trim |
| 24 | WFC | Wells Fargo & Co | 0% | +0.49% | Add |
| 25 | BSV | Vanguard Short-term Bond ETF | -0.1% | +1.58% | Add |
| 26 | IWB | Ishares Russell 1000 ETF | -1.1% | +2.15% | Add |
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-03-31 | 2026-05-04 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-01-14 | 13F-HR | View on EDGAR |
| 2025-09-30 | 2025-10-08 | 13F-HR | View on EDGAR |
| 2025-06-30 | 2025-07-15 | 13F-HR | View on EDGAR |
| 2025-03-31 | 2025-04-22 | 13F-HR | View on EDGAR |
| 2024-12-31 | 2025-01-24 | 13F-HR | View on EDGAR |
| 2024-09-30 | 2024-10-10 | Amendment | View on EDGAR |
| 2024-09-30 | 2024-10-07 | 13F-HR | View on EDGAR |
| 2024-06-30 | 2024-07-18 | 13F-HR | View on EDGAR |
| 2024-03-31 | 2024-04-17 | 13F-HR | View on EDGAR |
| 2023-12-31 | 2024-01-17 | 13F-HR | View on EDGAR |
| 2023-09-30 | 2023-10-17 | 13F-HR | View on EDGAR |
| 2023-06-30 | 2023-07-17 | 13F-HR | View on EDGAR |
| 2023-03-31 | 2023-04-27 | 13F-HR | View on EDGAR |
| 2022-12-31 | 2023-01-13 | 13F-HR | View on EDGAR |
| 2022-09-30 | 2022-10-27 | 13F-HR | View on EDGAR |
| 2022-06-30 | 2022-07-26 | 13F-HR | View on EDGAR |
| 2022-03-31 | 2022-04-21 | 13F-HR | View on EDGAR |
| 2021-12-31 | 2022-01-24 | 13F-HR | View on EDGAR |
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