CIK: 0001902024
Total reported value
$608.3M
Reporting period: 2026-03-31 · Number of holdings: 85
Austin Asset Management Co Inc disclosed 85 holdings in its latest 13F filing for the period ending 2026-03-31, with total reported value of $608.3M and a quarterly turnover rate of 9.7%.
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Austin Asset Management Co Inc's disclosed holdings carry a Herfindahl concentration index of 0.112 — mathematically equivalent to about 9 equally-sized positions, well below its 85 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 2.93), 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 19% 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.
Add BIV
+66.1% $9.3M
Trim CASH
-$8.2M
Add UPS
+2342.6% $5.8M
Trim NVDA
+0.2% -$5.8M
Trim BSV
-36.6% -$5.1M
Trim DFUS
-1.3% -$4.0M
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | DFAC | Dimensional US Core Equity 2 | ETF-Other | 25.83% | -0.40% | +0.24% | |
| 2 | NVDA | Nvidia CORP | Stock-Tech | 14.16% | -0.94% | +0.22% | |
| 3 | DFUS | Dimensional US Eq Mkt ETF | ETF-Other | 10.92% | -0.65% | -1.28% | |
| 4 | DFAS | Dimensional US Small Cap ETF | ETF-Small Cap | 5.41% | — | -2.16% | |
| 5 | STIP | Ishares 0-5 Year Tips Bond E | ETF-Other | 5.28% | +0.40% | +7.05% | |
| 6 | BIV | Vanguard Intermediate-term B | ETF-Other | 3.89% | +1.53% | +66.13% | |
| 7 | VNQ | Vanguard Real Estate ETF | ETF-Other | 3.45% | +0.23% | +6.93% | |
| 8 | DFUV | Dimensional US Marketwide Va | ETF-Other | 2.60% | +0.07% | -1.36% | |
| 9 | CASH | Pathward Financial INC | Stock-Other | 2.55% | -1.36% | — | |
| 10 | DFIC | Dimensional International Co | ETF-Other | 2.54% | +0.08% | -0.14% | |
| 11 | DFLV | Dim US Large Cap Value ETF | ETF-Large Cap & Growth | 2.54% | +0.12% | +0.49% | |
| 12 | DUHP | Dimensional US High Profi Et | ETF-Other | 2.33% | — | +3.49% | |
| 13 | DFIV | Dimensional International Va | ETF-Other | 1.77% | +0.03% | -3.48% | |
| 14 | AVUV | Avantis US Small Cap Value | ETF-Small Cap | 1.75% | +0.12% | -0.89% | |
| 15 | DFAT | Dimensional US Target Value | ETF-Other | 1.54% | — | -4.43% | |
| 16 | BSV | Vanguard Short-term Bond ETF | ETF-Other | 1.44% | -0.84% | -36.64% | |
| 17 | AAPL | Apple INC | Stock-Tech | 1.03% | — | +8.07% | |
| 18 | UPS | United Parcel Service-cl B | Stock-Industrials | 1.00% | +0.96% | +2342.56% | |
| 19 | SPY | Ss Spdr S&p 500 ETF Trust-us | ETF-Large Cap & Growth | 0.78% | — | +3.75% | |
| 20 | VTIP | Vanguard Short-term Tips | ETF-Other | 0.67% | -0.13% | -16.38% | |
| 21 | AVDE | Avantis International Equity | ETF-Other | 0.51% | -0.02% | -6.77% | |
| 22 | DELL | Dell Technologies -c | Stock-Tech | 0.48% | +0.16% | +14.29% | |
| 23 | LLY | Eli Lilly & Co | Stock-Healthcare | 0.48% | -0.11% | -5.52% | |
| 24 | DIHP | Dimensional International Hi | ETF-Other | 0.46% | +0.02% | +2.82% | |
| 25 | DFEM | Dimensional Emrg Mrkt Core | ETF-Other | 0.45% | +0.01% | -1.85% | |
| 26 | DFIS | Dimensional International Sm | ETF-Other | 0.39% | — | -0.62% | |
| 27 | IVV | Ishares Core S&p 500 ETF | ETF-Large Cap & Growth | 0.32% | — | +1.49% | |
| 28 | DFSV | Dimensional US Small Cap Val | ETF-Small Cap | 0.27% | +0.01% | — | |
| 29 | XOM | Exxon Mobil CORP | Stock-Energy | 0.27% | +0.16% | +69.36% | |
| 30 | GBX | Greenbrier Companies INC | Stock-Other | 0.24% | +0.08% | +27.07% | |
| 31 | MSFT | Microsoft CORP | Stock-Tech | 0.21% | -0.03% | +13.97% | |
| 32 | AMZN | Amazon.com INC | Stock-Consumer Disc | 0.20% | -0.03% | -5.21% | |
| 33 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 0.20% | +0.02% | +19.01% | |
| 34 | AESI | Atlas Energy Solutions INC | Stock-Other | 0.19% | +0.05% | — | |
| 35 | PRF | Invesco Rafi US 1000 ETF | ETF-Other | 0.19% | — | — | |
| 36 | CP | Canadian Pacific Kansas City | Stock-Industrials | 0.17% | — | — | |
| 37 | FFIN | First Finl Bankshares INC | Stock-Financials | 0.16% | — | — | |
| 38 | DFAW | Dimensional World Eqty ETF | ETF-Other | 0.15% | +0.04% | +32.34% | |
| 39 | GOOG | Alphabet Inc-cl C | Stock-Comm Services | 0.14% | +0.02% | +27.72% | |
| 40 | RSP | Invesco S&p 500 Equal Weight | ETF-Large Cap & Growth | 0.14% | — | -1.80% | |
| 41 | VWO | Vanguard Ftse Emerging Marke | ETF-Emerging Markets | 0.13% | — | — | |
| 42 | BCI | Abrdn Bloomberg All Commodit | ETF-Other | 0.12% | +0.03% | +0.26% | |
| 43 | VTV | Vanguard Value ETF | ETF-Other | 0.11% | — | -1.40% | |
| 44 | EFA | Ishares Msci Eafe ETF | ETF-Other | 0.11% | — | +0.85% | |
| 45 | META | Meta Platforms Inc-class A | Stock-Comm Services | 0.11% | -0.01% | +2.09% | |
| 46 | DISV | Dimensional International Sm | ETF-Other | 0.10% | — | -5.88% | |
| 47 | AMD | Advanced Micro Devices | Stock-Tech | 0.09% | +0.09% | NEW | |
| 48 | TSLA | Tesla INC | Stock-Consumer Disc | 0.09% | -0.01% | +2.54% | |
| 49 | TFC | Truist Financial CORP | Stock-Financials | 0.09% | +0.09% | NEW | |
| 50 | IWD | Ishares Russell 1000 Value E | ETF-Other | 0.08% | — | -1.67% |
Performance for Q3 2026
+2.8%
Performance Last 4 Quarters
+18%
Based on 54% of reported portfolio value with available pricing
| Period | Holdings | Total value | Stability | Top holdings |
|---|---|---|---|---|
| 2026-03-31 | 85 | $608.3M | 10 | |
| 2025-12-31 | 76 | $608.7M | 12 | |
| 2025-09-30 | 74 | $548.4M | 17 | |
| 2025-06-30 | 74 | $513.4M | 0 | |
| 2025-03-31 | 81 | $480.1M | 0 | |
| 2024-12-31 | 71 | $503.0M | 0 | |
| 2024-09-30 | 67 | $513.6M | 0 | |
| 2024-06-30 | 66 | $489.0M | 0 | |
| 2024-03-31 | 64 | $470.7M | 0 | |
| 2023-12-31 | 58 | $379.6M | 0 | |
| 2023-09-30 | 61 | $342.7M | 0 | |
| 2023-06-30 | 58 | $351.7M | 0 | |
| 2023-03-31 | 56 | $312.3M | 0 | |
| 2022-12-31 | 53 | $277.7M | 0 | |
| 2022-09-30 | 53 | $278.1M | 0 | |
| 2022-06-30 | 55 | $280.3M | 0 | |
| 2022-03-31 | 57 | $315.0M | 0 | |
| 2021-12-31 | 56 | $320.4M | 0 |
Austin Asset Management Co Inc's most significant position changes for 2026-03-31: New buy: Advanced Micro Devices (AMD); New buy: Truist Financial CORP (TFC); New buy: Caterpillar INC (CAT); New buy: Ford Motor Co (F); New buy: Costco Wholesale CORP (COST).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | BIV | Vanguard Intermediate-term B | +1.5% | +66.13% | Add |
| 2 | UPS | United Parcel Service-cl B | +1% | +2342.56% | Add |
| 3 | STIP | Ishares 0-5 Year Tips Bond E | +0.4% | +7.05% | Add |
| 4 | VNQ | Vanguard Real Estate ETF | +0.2% | +6.93% | Add |
| 5 | XOM | Exxon Mobil CORP | +0.2% | +69.36% | Add |
| 6 | DELL | Dell Technologies -c | +0.2% | +14.29% | Add |
| 7 | AVUV | Avantis US Small Cap Value | +0.1% | -0.89% | Trim |
| 8 | DFLV | Dim US Large Cap Value ETF | +0.1% | +0.49% | Add |
| 9 | DFIC | Dimensional International Co | +0.1% | -0.14% | Trim |
| 10 | GBX | Greenbrier Companies INC | +0.1% | +27.07% | Add |
| 11 | DFUV | Dimensional US Marketwide Va | +0.1% | -1.36% | Trim |
| 12 | AESI | Atlas Energy Solutions INC | +0.1% | — | Unchanged |
| 13 | VTI | Vanguard Total Stock Mkt ETF | 0% | +128.04% | Add |
| 14 | DFAW | Dimensional World Eqty ETF | 0% | +32.34% | Add |
| 15 | DFIV | Dimensional International Va | 0% | -3.48% | Trim |
| 16 | BCI | Abrdn Bloomberg All Commodit | 0% | +0.26% | Add |
| 17 | DIHP | Dimensional International Hi | 0% | +2.82% | Add |
| 18 | GOOG | Alphabet Inc-cl C | 0% | +27.72% | Add |
| 19 | GOOGL | Alphabet Inc-cl A | 0% | +19.01% | Add |
| 20 | DFSV | Dimensional US Small Cap Val | 0% | — | Unchanged |
| 21 | DFEM | Dimensional Emrg Mrkt Core | 0% | -1.85% | Trim |
| 22 | TSLA | Tesla INC | 0% | +2.54% | Add |
| 23 | META | Meta Platforms Inc-class A | 0% | +2.09% | Add |
| 24 | V | Visa Inc-class A Shares | 0% | — | Unchanged |
| 25 | AVDE | Avantis International Equity | 0% | -6.77% | Trim |
| 26 | AMZN | Amazon.com INC | 0% | -5.21% | Trim |
| 27 | MSFT | Microsoft CORP | 0% | +13.97% | Add |
| 28 | NUTX | Nutex Health INC | 0% | -0.55% | Trim |
| 29 | IWF | Ishares Russell 1000 Growth | 0% | -29.70% | Trim |
| 30 | TIP | Ishares Tips Bond ETF | -0.1% | -60.97% | Trim |
| 31 | LLY | Eli Lilly & Co | -0.1% | -5.52% | Trim |
| 32 | VTIP | Vanguard Short-term Tips | -0.1% | -16.38% | Trim |
| 33 | DFAC | Dimensional US Core Equity 2 | -0.4% | +0.24% | Add |
| 34 | DFUS | Dimensional US Eq Mkt ETF | -0.7% | -1.28% | Trim |
| 35 | BSV | Vanguard Short-term Bond ETF | -0.8% | -36.64% | Trim |
| 36 | NVDA | Nvidia CORP | -0.9% | +0.22% | Add |
| 37 | CASH | Pathward Financial INC | -1.4% | — | Unchanged |
| 38 | AMD | Advanced Micro Devices | — | NEW | New buy |
| 39 | TFC | Truist Financial CORP | — | NEW | New buy |
| 40 | CAT | Caterpillar INC | — | NEW | New buy |
| 41 | F | Ford Motor Co | — | NEW | New buy |
| 42 | COST | Costco Wholesale CORP | — | NEW | New buy |
| 43 | SHEL | Shell Plc-adr | — | NEW | New buy |
| 44 | IWM | Ishares Russell 2000 ETF | — | NEW | New buy |
| 45 | SPOT | Spotify Technology S.A. | — | EXIT | Sold out |
| 46 | AMGN | Amgen INC | — | NEW | New buy |
| 47 | DGCB | Dimensional Global Credit | — | NEW | New buy |
| 48 | AVGO | Broadcom INC | — | NEW | New buy |
| 49 | VUG | Vanguard Growth ETF | — | EXIT | Sold out |
| 50 | LAC | Lithium Americas CORP | — | NEW | New buy |
| Period | Filed | Type | EDGAR |
|---|---|---|---|
| 2026-03-31 | 2026-04-29 | 13F-HR | View on EDGAR |
| 2025-12-31 | 2026-02-04 | 13F-HR | View on EDGAR |
| 2025-09-30 | 2025-10-24 | 13F-HR | View on EDGAR |
| 2025-06-30 | 2025-07-23 | 13F-HR | View on EDGAR |
| 2025-03-31 | 2025-04-23 | 13F-HR | View on EDGAR |
| 2024-12-31 | 2025-01-28 | 13F-HR | View on EDGAR |
| 2024-09-30 | 2024-11-01 | 13F-HR | View on EDGAR |
| 2024-06-30 | 2024-08-12 | 13F-HR | View on EDGAR |
| 2024-03-31 | 2024-04-26 | 13F-HR | View on EDGAR |
| 2023-12-31 | 2024-01-10 | 13F-HR | View on EDGAR |
| 2023-09-30 | 2023-10-24 | 13F-HR | View on EDGAR |
| 2023-06-30 | 2023-07-24 | 13F-HR | View on EDGAR |
| 2023-03-31 | 2023-04-11 | 13F-HR | View on EDGAR |
| 2022-12-31 | 2023-01-13 | 13F-HR | View on EDGAR |
| 2022-09-30 | 2022-10-07 | 13F-HR | View on EDGAR |
| 2022-06-30 | 2022-07-11 | 13F-HR | View on EDGAR |
| 2022-03-31 | 2022-04-13 | 13F-HR | View on EDGAR |
| 2021-12-31 | 2022-01-26 | 13F-HR | View on EDGAR |
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