Austin Asset Management Co Inc
In its 13F for Q3 2025 (holdings as of September 30, 2025, filed October 24, 2025), Austin Asset Management Co Inc reported 73 stock positions worth $525.2 million. Its top holding was Dimensional US Core Equity 2 (DFAC) at 30.0% of the portfolio, followed by Dimensional US Eq MKT ETF (DFUS, 13.2%) and Nvidia (NVDA, 8.3%). Compared with Q2 2025, it opened 2 new positions, sold out of 2, added to 22 and reduced 25. The biggest buy was Nvidia (NVDA, shares +0%) and the biggest sale Dimensional US Core Equity 2 (DFAC, shares −3%).
- Most Recent 13F
- Q2 2026
- Location
- AUSTIN, TX
- CIK
- 0001902024
- Portfolio Value
- $525.2M (Q3 2025)
- SEC Filing
- 0001902024-25-000002 ↗ filed Oct 24, 2025
Holdings Value
Holdings 73 stocks · $525.2M
| DFAC Dimensional US Core Equity 2 | 29.98% | 4,082,692 | $157.5M | Reduce -2.6% |
| DFUS Dimensional US Eq MKT ETF | 13.19% | 956,364 | $69.3M | Reduce -3.0% |
| NVDA Nvidia Corp. | 8.30% | 233,543 | $43.6M | Add +0.1% |
| DFAS Dimensional US Small Cap ETF | 6.24% | 478,329 | $32.7M | Reduce -0.2% |
| STIP iShares 0-5 Year Tips Bond E | 5.66% | 287,836 | $29.8M | Add +4.1% |
| VNQ Vanguard Real Estate ETF | 3.76% | 215,761 | $19.7M | Add +3.6% |
| DFUV Dimensional US Marketwide Va | 2.83% | 332,657 | $14.9M | Reduce -1.7% |
| BSV Vanguard Short-Term Bond ETF | 2.75% | 182,735 | $14.4M | Reduce -0.3% |
| DFIC Dimensional International Co. | 2.72% | 435,134 | $14.3M | Add +0.9% |
| DFLV Dim US Large Cap Value ETF | 2.68% | 428,265 | $14.1M | Add +6.2% |
| DUHP Dimensional US High Profi Et | 2.61% | 362,586 | $13.7M | Add +11.3% |
| BIV Vanguard Intermediate-Term B | 2.37% | 159,711 | $12.5M | Reduce -0.8% |
| DFIV Dimensional International Va | 1.87% | 213,210 | $9.8M | Reduce -2.2% |
| AVUV Avantis US Small Cap Value | 1.84% | 97,135 | $9.7M | Add +1.6% |
| DFAT Dimensional US Target Value | 1.77% | 159,731 | $9.3M | Reduce -1.2% |
| AAPL Apple Inc. | 1.14% | 23,532 | $6.0M | Reduce -1.1% |
| VTIP Vanguard Short-Term Tips | 1.02% | 106,136 | $5.4M | Add +0.2% |
| SPY SS SPDR S&P 500 ETF Trust-US | 0.88% | 6,912 | $4.6M | Add +2.8% |
| AVDE Avantis International Equity | 0.67% | 44,360 | $3.5M | Reduce -1.8% |
| LLY Eli Lilly & Co. | 0.53% | 3,615 | $2.8M | Reduce -1.9% |
| DIHP Dimensional International Hi | 0.48% | 82,123 | $2.5M | Add +1.6% |
| DFEM Dimensional Emrg MRKT Core | 0.45% | 74,483 | $2.4M | Add +9.1% |
| DFIS Dimensional International SM | 0.45% | 74,160 | $2.3M | Reduce -0.9% |
| IVV iShares Core S&P 500 ETF | 0.35% | 2,759 | $1.8M | No change |
| MSFT Microsoft Corp. | 0.29% | 2,970 | $1.5M | Reduce -23.9% |
| AMZN Amazon.com Inc. | 0.28% | 6,716 | $1.5M | Add +1.9% |
| DFSV Dimensional US Small Cap Val | 0.28% | 46,223 | $1.5M | No change |
| PRF Invesco Rafi US 1000 ETF | 0.21% | 24,266 | $1.1M | No change |
| FFIN First Finl Bankshares Inc. | 0.21% | 32,598 | $1.1M | No change |
| AESI Atlas Energy Solutions Inc. | 0.19% | 90,000 | $1.0M | No change |
| GBX Greenbrier Companies Inc. | 0.19% | 21,203 | $979K | No change |
| AVUS Avantis U.S. Equity ETF | 0.18% | 8,915 | $969K | No change |
| CP Canadian Pacific Kansas City | 0.18% | 12,843 | $957K | No change |
| RSP Invesco S&P 500 Equal Weight | 0.16% | 4,371 | $829K | No change |
| GOOGL Alphabet Inc. Class A | 0.16% | 3,364 | $818K | Add +0.0% |
| TIP iShares Tips Bond ETF | 0.15% | 7,030 | $782K | Add +1.0% |
| META Meta Platforms Inc. Class A | 0.15% | 1,054 | $774K | No change |
| VWO Vanguard Ftse Emerging Marke | 0.14% | 14,026 | $760K | Add +4.0% |
| DISV Dimensional International SM | 0.13% | 19,221 | $686K | No change |
| BCI Abrdn Bloomberg All Commodit filed as ABRDN ETFS | 0.13% | 31,433 | $677K | Add +6.1% |
| DFAW Dimensional World Eqty ETF | 0.13% | 9,374 | $674K | Reduce -0.5% |
| EFA iShares MSCI Eafe ETF | 0.12% | 6,952 | $649K | No change |
| TSLA Tesla Inc. | 0.12% | 1,405 | $625K | Reduce -3.2% |
| VTV Vanguard Mrngstr Val ETF-Aui | 0.11% | 3,206 | $598K | Reduce -6.6% |
| GOOG Alphabet Inc. Class C | 0.11% | 2,306 | $562K | Reduce -16.7% |
| DFAR Dimensional US Real Est ETF | 0.10% | 22,600 | $539K | No change |
| XOM Exxon Mobil Corp. | 0.10% | 4,686 | $528K | Add +13.7% |
| IWF iShares Russell 1000 Growth | 0.10% | 1,121 | $525K | No change |
| IWD iShares Russell 1000 Value E | 0.09% | 2,401 | $489K | No change |
| AVEM Avantis Emerging Markets Eq | 0.09% | 6,246 | $469K | Reduce -6.6% |
| AVSU Avantis Resp US Equity ETF | 0.09% | 6,270 | $461K | Reduce -3.3% |
| TSM Taiwan Semiconductor-SP ADR | 0.08% | 1,480 | $413K | Reduce -22.7% |
| DFSD Dimensional Short Duration | 0.08% | 8,490 | $409K | No change |
| V Visa Inc. Class A | 0.08% | 1,176 | $402K | Add +2.1% |
| WMT Walmart Inc. | 0.07% | 3,778 | $389K | Reduce -55.7% |
| HD Home Depot Inc. | 0.07% | 936 | $379K | No change |
| NFLX Netflix Inc. | 0.07% | 314 | $376K | No change |
| SCHV Schwab US Large-Cap Value | 0.07% | 11,754 | $342K | Reduce -5.4% |
| VEA Vanguard Ftse Developed ETF | 0.06% | 5,522 | $331K | Add +4.7% |
| JPM JPMorgan Chase & Co. | 0.06% | 1,028 | $324K | Add +8.8% |
| IEFA iShares Core MSCI Eafe ETF | 0.06% | 3,572 | $312K | No change |
| HXL Hexcel Corp. | 0.05% | 4,600 | $288K | No change |
| DFSU Dimensional US Sus CORE1 ETF | 0.05% | 6,785 | $288K | Add +3.0% |
| IBM Intl Business Machines Corp. filed as INTERNATIONAL BUSINESS MACHS | 0.05% | 1,016 | $287K | Reduce -41.0% |
| SPOT Spotify Technology SA | 0.05% | 382 | $267K | Reduce -1.3% |
| BRK.B Berkshire Hathaway Inc. Class B | 0.05% | 519 | $261K | Add +3.0% |
| NUTX Nutex Health Inc. | 0.05% | 2,503 | $259K | Reduce -1.0% |
| VT Vanguard Tot World STK ETF | 0.05% | 1,836 | $253K | New |
| AVSD Avantis Reps Intern Equi ETF | 0.05% | 3,480 | $249K | No change |
| AFL Aflac Inc. | 0.04% | 2,078 | $232K | No change |
| LEN Lennar Corp. Class A | 0.04% | 1,700 | $214K | New |
| UPS United Parcel Service Class B | 0.04% | 2,505 | $209K | No change |
| HACK Amplify Cybersecurity ETF | 0.04% | 2,366 | $205K | No change |
Lines left out (1) · $23.2M — a value with no share or principal amount
| Security | Class | Shares | Value |
|---|---|---|---|
| CASH Pathward Financial Inc. | COM | 0 | $23.2M |
Filed with a value but no share or principal amount (a cash line, a holding rounded to 0 shares), so they are kept out of the holdings, totals and percentages.
Total filed on the 13F, all lines: $548.4M.
Portfolio Sells Q2 2025 → Q3 2025
| DFAC Dimensional US Core Equity 2 | Reduce -2.6% | 29.98% | −0.43 |
| DFUS Dimensional US Eq MKT ETF | Reduce -3.0% | 13.19% | −0.19 |
| BSV Vanguard Short-Term Bond ETF | Reduce -0.3% | 2.75% | −0.17 |
| BIV Vanguard Intermediate-Term B | Reduce -0.8% | 2.37% | −0.15 |
| MSFT Microsoft Corp. | Reduce -23.9% | 0.29% | −0.10 |
| WMT Walmart Inc. | Reduce -55.7% | 0.07% | −0.09 |
| DFUV Dimensional US Marketwide Va | Reduce -1.7% | 2.83% | −0.07 |
| LLY Eli Lilly & Co. | Reduce -1.9% | 0.53% | −0.06 |
| IBM Intl Business Machines Corp. | Reduce -41.0% | 0.05% | −0.05 |
| TEAM Atlassian Corp. Class A | Sold out | 0.00% | −0.05 |
| AEP American Electric Power | Sold out | 0.00% | −0.05 |
| DFIV Dimensional International Va | Reduce -2.2% | 1.87% | −0.02 |
| NUTX Nutex Health Inc. | Reduce -1.0% | 0.05% | −0.01 |
| AVDE Avantis International Equity | Reduce -1.8% | 0.67% | −0.01 |
| SPOT Spotify Technology SA | Reduce -1.3% | 0.05% | −0.01 |
| TSM Taiwan Semiconductor-SP ADR | Reduce -22.7% | 0.08% | −0.01 |
| VTV Vanguard Mrngstr Val ETF-Aui | Reduce -6.6% | 0.11% | −0.01 |
| DFIS Dimensional International SM | Reduce -0.9% | 0.45% | −0.01 |
| SCHV Schwab US Large-Cap Value | Reduce -5.4% | 0.07% | −0.00 |
| AVEM Avantis Emerging Markets Eq | Reduce -6.6% | 0.09% | −0.00 |
| AVSU Avantis Resp US Equity ETF | Reduce -3.3% | 0.09% | −0.00 |
| DFAW Dimensional World Eqty ETF | Reduce -0.5% | 0.13% | +0.00 |
| DFAT Dimensional US Target Value | Reduce -1.2% | 1.77% | +0.00 |
| GOOG Alphabet Inc. Class C | Reduce -16.7% | 0.11% | +0.01 |
| TSLA Tesla Inc. | Reduce -3.2% | 0.12% | +0.03 |
| DFAS Dimensional US Small Cap ETF | Reduce -0.2% | 6.24% | +0.05 |
| AAPL Apple Inc. | Reduce -1.1% | 1.14% | +0.15 |
Portfolio Buys Q2 2025 → Q3 2025
| NVDA Nvidia Corp. | Add +0.1% | 8.30% | +0.83 |
| DUHP Dimensional US High Profi Et | Add +11.3% | 2.61% | +0.26 |
| DFLV Dim US Large Cap Value ETF | Add +6.2% | 2.68% | +0.15 |
| AVUV Avantis US Small Cap Value | Add +1.6% | 1.84% | +0.08 |
| VT Vanguard Tot World STK ETF | New | 0.05% | +0.05 |
| DFEM Dimensional Emrg MRKT Core | Add +9.1% | 0.45% | +0.04 |
| LEN Lennar Corp. Class A | New | 0.04% | +0.04 |
| GOOGL Alphabet Inc. Class A | Add +0.0% | 0.16% | +0.04 |
| SPY SS SPDR S&P 500 ETF Trust-US | Add +2.8% | 0.88% | +0.04 |
| XOM Exxon Mobil Corp. | Add +13.7% | 0.10% | +0.01 |
| VWO Vanguard Ftse Emerging Marke | Add +4.0% | 0.14% | +0.01 |
| JPM JPMorgan Chase & Co. | Add +8.8% | 0.06% | +0.01 |
| BCI Abrdn Bloomberg All Commodit | Add +6.1% | 0.13% | +0.00 |
| DFSU Dimensional US Sus CORE1 ETF | Add +3.0% | 0.05% | +0.00 |
| DFIC Dimensional International Co. | Add +0.9% | 2.72% | +0.00 |
| VEA Vanguard Ftse Developed ETF | Add +4.7% | 0.06% | +0.00 |
| VNQ Vanguard Real Estate ETF | Add +3.6% | 3.76% | +0.00 |
| BRK.B Berkshire Hathaway Inc. Class B | Add +3.0% | 0.05% | +0.00 |
| TIP iShares Tips Bond ETF | Add +1.0% | 0.15% | −0.01 |
| V Visa Inc. Class A | Add +2.1% | 0.08% | −0.01 |
| DIHP Dimensional International Hi | Add +1.6% | 0.48% | −0.01 |
| AMZN Amazon.com Inc. | Add +1.9% | 0.28% | −0.01 |
| VTIP Vanguard Short-Term Tips | Add +0.2% | 1.02% | −0.05 |
| STIP iShares 0-5 Year Tips Bond E | Add +4.1% | 5.66% | −0.10 |
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 93 | $700.9M | DFAC, NVDA, DFUS, DFAS, STIP |
| Q1 2026 | 84 | $592.8M | DFAC, NVDA, DFUS, DFAS, STIP |
| Q4 2025 | 75 | $584.9M | DFAC, NVDA, DFUS, DFAS, STIP |
| Q3 2025 | 73 | $525.2M | DFAC, DFUS, NVDA, DFAS, STIP |
| Q2 2025 | 73 | $493.9M | DFAC, DFUS, NVDA, DFAS, STIP |
| Q1 2025 | 76 | $456.5M | DFAC, DFUS, STIP, DFAS, NVDA |
| Q4 2024 | 70 | $480.2M | DFAC, DFUS, NVDA, DFAS, STIP |
| Q3 2024 | 66 | $491.0M | DFAC, DFUS, NVDA, DFAS, STIP |
| Q2 2024 | 65 | $470.1M | DFAC, DFUS, NVDA, DFAS, STIP |
| Q1 2024 | 63 | $455.1M | DFAC, NVDA, DFUS, DFAS, STIP |