CIK: 0001632407
Total reported value
$1.2B
Reporting period: 2025-09-30 · Number of holdings: 180
Willow Creek Wealth Management Inc. disclosed 180 holdings in its latest 13F filing for the period ending 2025-09-30, with total reported value of $1.2B and a quarterly turnover rate of 84.5%.
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Willow Creek Wealth Management Inc.'s disclosed holdings carry a Herfindahl concentration index of 0.043 — mathematically equivalent to about 23 equally-sized positions, well below its 180 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 2.61), with a handful of outsized bets alongside many smaller positions.
No strong tilt toward either adding to existing winners or initiating outsized new positions was observed in the latest reported quarter.
Sector classification currently covers about 6% 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.
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Trim SPAB
+6.5% $20.5M
Trim BSV
+6.4% $71.0M
Add DFAI
+9.5% $47.5M
Trim SPTS
+2.7% $7.8M
Trim SPSB
+3.5% $18.5M
Add VTEB
+0.7% $33.7M
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | DFAT | Dimensional US Target Value | ETF-Other | 10.32% | +10.32% | NEW | |
| 2 | BSV | Vanguard Short-term Bond ETF | ETF-Other | 9.77% | -7.75% | +6.35% | |
| 3 | SPAB | Ss Spdr P Agg Bond ETF | ETF-Other | 8.38% | -21.47% | +6.49% | |
| 4 | DFUS | Dimensional US Eq Mkt ETF | ETF-Other | 4.89% | +4.89% | NEW | |
| 5 | DFUV | Dimensional US Marketwide Va | ETF-Other | 3.98% | +3.98% | NEW | |
| 6 | DFAI | Dimensional International Co | ETF-Other | 3.95% | +3.79% | +9.47% | |
| 7 | SUB | Ishares Short-term National | ETF-Other | 3.71% | +3.71% | NEW | |
| 8 | SCHP | Schwab U.s. Tips ETF | ETF-Other | 3.44% | +1.75% | +7.58% | |
| 9 | BIV | Vanguard Intermediate-term B | ETF-Other | 3.15% | +1.58% | +2.16% | |
| 10 | VTEB | Vanguard Tax-exempt Bond ETF | ETF-Other | 2.80% | +2.68% | +0.70% | |
| 11 | DFIV | Dimensional International Va | ETF-Other | 2.78% | +2.78% | NEW | |
| 12 | SPSB | Ss Spdr P St C CORP ETF | ETF-Other | 2.76% | -2.77% | +3.48% | |
| 13 | AVLV | Avantis US Large Cap Value | ETF-Large Cap & Growth | 2.65% | +2.65% | NEW | |
| 14 | DFEM | Dimensional Emrg Mrkt Core | ETF-Other | 2.54% | +2.54% | NEW | |
| 15 | AVDV | Avantis Intl S/c Value ETF | ETF-Other | 2.19% | +2.19% | NEW | |
| 16 | SPIB | Ss Spdr P Int C CORP ETF | ETF-Other | 1.95% | +0.36% | +3.49% | |
| 17 | SPTS | Ss Spdr P St Term Tsy ETF | ETF-Other | 1.80% | -3.35% | +2.69% | |
| 18 | DFGR | Dim Global Real Estate ETF | ETF-Other | 1.44% | +1.44% | NEW | |
| 19 | SPTI | Ss Spdr P Int Term Tsy ETF | ETF-Other | 1.41% | -0.32% | +2.82% | |
| 20 | DFAU | Dimensional US Core Equity M | ETF-Other | 1.38% | +1.22% | -0.63% | |
| 21 | SPIP | Ss Spdr P Tips ETF | ETF-Other | 1.34% | — | +1.81% | |
| 22 | AVSD | Avantis Reps Intern Equi ETF | ETF-Other | 1.28% | +1.28% | NEW | |
| 23 | AAPL | Apple Inc | Stock-Tech | 1.27% | -1.53% | +0.05% | |
| 24 | COST | Costco Wholesale CORP | Stock-Consumer Staples | 1.23% | -1.07% | +0.47% | |
| 25 | AVUV | Avantis US Small Cap Value | ETF-Small Cap | 1.20% | +1.20% | NEW | |
| 26 | DFSU | Dimensional US Sus Core1 ETF | ETF-Other | 1.14% | +1.14% | NEW | |
| 27 | DFSI | Dimensional Int Sus Cor1 ETF | ETF-Other | 0.87% | +0.87% | NEW | |
| 28 | DFAX | Dimensional World Ex US Core | ETF-Other | 0.77% | +0.77% | NEW | |
| 29 | DFAR | Dimensional US Real Est ETF | ETF-Other | 0.77% | +0.77% | NEW | |
| 30 | AVSE | Avantis Resp Emerg Mkts Eq-e | ETF-Other | 0.72% | +0.72% | NEW | |
| 31 | CSCO | Cisco Systems Inc | Stock-Tech | 0.61% | -1.35% | +0.06% | |
| 32 | DFAC | Dimensional US Core Equity 2 | ETF-Other | 0.57% | +0.57% | NEW | |
| 33 | DFSE | Dimensional Em Sus Core1 ETF | ETF-Other | 0.56% | +0.56% | NEW | |
| 34 | VNQ | Vanguard Real Estate ETF | ETF-Other | 0.56% | -0.54% | +3.12% | |
| 35 | AVSU | Avantis Resp US Equity ETF | ETF-Other | 0.55% | +0.55% | NEW | |
| 36 | DFAE | Dimensional Emerging Core Eq | ETF-Emerging Markets | 0.51% | +0.51% | NEW | |
| 37 | VBIL | Vanguard 0-3m T-bill ETF | ETF-Other | 0.43% | +0.43% | NEW | |
| 38 | VGSR | Vert Glb Sust Re ETF | ETF-Other | 0.42% | +0.42% | NEW | |
| 39 | ESML | Ishares Esg Aware Msci USA S | ETF-Other | 0.41% | +0.20% | -0.18% | |
| 40 | DISV | Dimensional International Sm | ETF-Other | 0.36% | +0.36% | NEW | |
| 41 | VOO | Vanguard S&p 500 ETF | ETF-Large Cap & Growth | 0.26% | +0.26% | NEW | |
| 42 | GOOG | Alphabet Inc-cl C | Stock-Comm Services | 0.26% | -0.12% | -0.15% | |
| 43 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 0.25% | — | +0.02% | |
| 44 | DFIC | Dimensional International Co | ETF-Other | 0.24% | +0.24% | NEW | |
| 45 | IJH | Ishares Core S&p Midcap ETF | ETF-Other | 0.23% | -0.04% | +0.03% | |
| 46 | WRB | Wr Berkley CORP | Stock-Financials | 0.21% | — | — | |
| 47 | INTU | Intuit Inc | Stock-Tech | 0.20% | — | — | |
| 48 | MSFT | Microsoft CORP | Stock-Tech | 0.20% | -0.04% | +11.24% | |
| 49 | DFAS | Dimensional US Small Cap ETF | ETF-Small Cap | 0.20% | +0.20% | NEW | |
| 50 | IVV | Ishares Core S&p 500 ETF | ETF-Large Cap & Growth | 0.18% | — | +5.18% |
Performance for Q3 2026
+2%
Performance Last 4 Quarters
+15.2%
| Period | Holdings | Total value | Stability | Top holdings | |
|---|---|---|---|---|---|
| 2025 Q3 | 180 | $1.2B | 85 | ||
| 2025 Q2 | 167 | $1.1B | 0 | ||
| 2025 Q1 | 155 | $1.0B | 0 | ||
| 2024 Q4 | 153 | $980.9M | 0 | ||
| 2024 Q3 | 155 | $951.3M | 0 | ||
| 2024 Q2 | 149 | $879.2M | 0 | ||
| 2024 Q1 | 153 | $855.3M | 0 | ||
| 2023 Q4 | 145 | $797.8M | 0 | ||
| 2023 Q3 | 131 | $671.6M | 0 | ||
| 2023 Q2 | 145 | $705.9M | 0 | ||
| 2023 Q1 | 132 | $648.3M | 0 | ||
| 2022 Q4 | 131 | $602.3M | 0 | ||
| 2022 Q3 | 118 | $515.3M | 0 | ||
| 2022 Q2 | 123 | $539.1M | 0 | ||
| 2022 Q1 | 118 | $497.5M | 0 | ||
| 2021 Q4 | 122 | $483.7M | 0 | ||
| 2021 Q3 | 114 | $451.3M | 0 | ||
| 2021 Q2 | 112 | $419.0M | 0 | ||
| 2021 Q1 | 94 | $272.2M | 14 | ||
| 2020 Q4 | 89 | $265.6M | 24 | ||
| 2020 Q3 | 85 | $242.5M | 51 | ||
| 2020 Q2 | 78 | $222.8M | 15 | ||
| 2020 Q1 | 65 | $198.7M | 16 | ||
| 2019 Q4 | 82 | $219.1M | 7 | ||
| 2019 Q3 | 85 | $215.7M | 6 | ||
| 2019 Q2 | 82 | $208.7M | 10 | ||
| 2019 Q1 | 72 | $198.3M | 8 | ||
| 2018 Q4 | 66 | $188.1M | 32 | ||
| 2018 Q3 | 72 | $179.3M | 9 | ||
| 2018 Q2 | 69 | $177.8M | 14 | ||
| 2018 Q1 | 69 | $186.7M | 27 | ||
| 2017 Q4 | 20 | $151.6M | 17 | ||
| 2017 Q3 | 19 | $153.2M | 4 | ||
| 2017 Q2 | 20 | $148.6M | 3 | ||
| 2017 Q1 | 20 | $144.9M | 7 | ||
| 2016 Q4 | 20 | $135.6M | 8 | ||
| 2016 Q3 | 18 | $127.0M | 6 | ||
| 2016 Q2 | 20 | $123.0M | 14 | ||
| 2016 Q1 | 17 | $110.4M | 7 | ||
| 2015 Q4 | 18 | $111.0M | 6 | ||
| 2015 Q3 | 17 | $108.4M | 4 | ||
| 2015 Q2 | 16 | $107.4M | 4 | ||
| 2015 Q1 | 14 | $106.5M | 5 | ||
| 2014 Q4 | 15 | $102.2M | 0 |
Willow Creek Wealth Management Inc.'s most significant position changes for 2025-09-30: New buy: Dimensional US Target Value (DFAT); New buy: Dimensional US Eq Mkt ETF (DFUS); New buy: Dimensional US Marketwide Va (DFUV); New buy: Ishares Short-term National (SUB); New buy: Dimensional International Va (DFIV).
Willow Creek Wealth Management Inc. returned an annualized 12.5% over the trailing 36 months — outperforming the S&P 500 by 1.3 points — based on a reconstructed track record of its disclosed 13F positions, with a beta of 0.54 (less volatile than the market) and a 42% quarterly batting average against the index.
Its portfolio is broadly diversified and fast-trading, with 47.7% of the portfolio concentrated in Information Technology.
Its turnover score has risen from 0 to 85 over the past 4 quarters — a shift toward more active trading.
It has added to its DFAT position over the past two quarters (+$20.8M, now $125.3M), while trimming SGOV over the same stretch (-$912.1K, still holding $1.6M).
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