PP
Postrock Partners LLC 13F Holdings & Position Changes (Q2 2026)
Postrock Partners LLCCIK: 0002053668
Diversified strategyMomentum followerSector-focused
Total reported value
$245.9M
Reporting period: 2026-06-30 · Number of holdings: 78
POSTROCK PARTNERS LLC disclosed 78 holdings in its latest 13F filing for the period ending 2026-06-30, with total reported value of $245.9M and a quarterly turnover rate of 16.9%.
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Personality snowflake
- Concentration
- 27.45
- Portfolio Stability
- 16.94
- Momentum
- 100
- Sector conviction
- 74.87
- Diversification
- 100
- Sizing Uniformity
- 79
Postrock Partners LLC's disclosed holdings carry a Herfindahl concentration index of 0.069 — mathematically equivalent to about 15 equally-sized positions, well below its 78 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 2.10), 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.
Source and citation information
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Recent moves
View source Form 13F filing on SEC.govAdd MU
0.0% $4.5M
Add AMD
0.0% $3.4M
Trim BRK-A
0.0% $1.4M
Trim FAST
0.0% $552.1K
Add GOOGL
0.0% $3.4M
Add QCOM
0.0% $2.0M
Holdings Map
New buyAddUnchangedTrim
Top 10 holdings by weight
Full holdings list this quarter
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | AAPL | Apple Inc | Stock-Tech | 16.90% | +0.04% | — | |
| 2 | BRK-A | Berkshire Hathaway Inc-cl A | Stock-Other | 13.40% | -1.22% | — | |
| 3 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 7.00% | +0.59% | — | |
| 4 | FAST | Fastenal Co | Stock-Industrials | 6.62% | -0.65% | — | |
| 5 | IVV | Ishares Core S&p 500 ETF | ETF-Large Cap & Growth | 5.64% | +0.36% | +5.94% | |
| 6 | GOOG | Alphabet Inc-cl C | Stock-Comm Services | 4.01% | +0.31% | — | |
| 7 | V | Visa Inc-class A Shares | Stock-Financials | 3.98% | -0.01% | — | |
| 8 | NVDA | Nvidia CORP | Stock-Tech | 3.66% | +0.03% | +0.08% | |
| 9 | BKNG | Booking Holdings Inc | Stock-Consumer Disc | 3.56% | -0.27% | +2400.00% | |
| 10 | QCOM | Qualcomm Inc | Stock-Tech | 2.71% | +0.56% | — | |
| 11 | MU | Micron Technology Inc | Stock-Tech | 2.58% | +1.72% | — | |
| 12 | AMD | Advanced Micro Devices | Stock-Tech | 2.15% | +1.29% | — | |
| 13 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 1.72% | +0.01% | +0.17% | |
| 14 | ROST | Ross Stores Inc | Stock-Consumer Disc | 1.49% | -0.24% | — | |
| 15 | HEI | Heico CORP | Stock-Industrials | 1.44% | +0.18% | — | |
| 16 | WMT | Walmart Inc | Stock-Consumer Staples | 1.05% | -0.27% | — | |
| 17 | IBMP | Ishares Ibonds Dec 2027 Term | ETF-Other | 1.02% | -0.12% | +2.02% | |
| 18 | UBER | Uber Technologies Inc | Stock-Industrials | 0.97% | -0.12% | +0.84% | |
| 19 | PANW | Palo Alto Networks Inc | Stock-Tech | 0.94% | +0.44% | — | |
| 20 | SPGI | S&p Global Inc | Stock-Financials | 0.87% | -0.15% | +0.36% | |
| 21 | RBA | Rb Global Inc | Stock-Industrials | 0.84% | +0.05% | — | |
| 22 | VRSK | Verisk Analytics Inc | Stock-Industrials | 0.77% | -0.15% | — | |
| 23 | VEEV | Veeva Systems Inc-class A | Stock-Healthcare | 0.76% | -0.09% | — | |
| 24 | MSFT | Microsoft CORP | Stock-Tech | 0.72% | -0.08% | +1.49% | |
| 25 | UPS | United Parcel Service-cl B | Stock-Industrials | 0.65% | -0.03% | — | |
| 26 | CTSH | Cognizant Tech Solutions-a | Stock-Tech | 0.62% | -0.50% | — | |
| 27 | LOPE | Grand Canyon Education Inc | Stock-Consumer Staples | 0.60% | -0.22% | — | |
| 28 | TECH | Bio-techne CORP | Stock-Healthcare | 0.60% | +0.09% | — | |
| 29 | SCHW | Schwab (charles) CORP | Stock-Financials | 0.58% | -0.08% | +2.43% | |
| 30 | SPY | Ss Spdr S&p 500 ETF Trust-us | ETF-Large Cap & Growth | 0.55% | +0.01% | — | |
| 31 | TSCO | Tractor Supply Company | Stock-Consumer Disc | 0.54% | -0.34% | — | |
| 32 | JPM | Jpmorgan Chase & Co | Stock-Financials | 0.47% | -0.01% | — | |
| 33 | ROL | Rollins Inc | Stock-Consumer Disc | 0.46% | -0.21% | — | |
| 34 | BLK | Blackrock Inc | Stock-Financials | 0.44% | -0.06% | — | |
| 35 | IBMO | Ishares Ibonds Dec 2026 Term | ETF-Other | 0.40% | -0.03% | +5.32% | |
| 36 | AMT | American Tower CORP | Stock-Real Estate | 0.40% | -0.08% | — | |
| 37 | COST | Costco Wholesale CORP | Stock-Consumer Staples | 0.39% | -0.09% | — | |
| 38 | SUB | Ishares Short-term National | ETF-Other | 0.36% | -0.05% | — | |
| 39 | EMB | Ishares Jp Morgan Usd Emergi | ETF-Other | 0.35% | -0.04% | — | |
| 40 | CPRT | Copart Inc | Stock-Industrials | 0.35% | -0.11% | — | |
| 41 | IJR | Ishares Core S&p Small-cap E | ETF-Small Cap | 0.33% | +0.05% | +13.35% | |
| 42 | IWM | Ishares Russell 2000 ETF | ETF-Small Cap | 0.31% | +0.02% | — | |
| 43 | SNPS | Synopsys Inc | Stock-Tech | 0.31% | — | — | |
| 44 | IWR | Ishares Russell Mid-cap ETF | ETF-Other | 0.29% | — | — | |
| 45 | CGNX | Cognex CORP | Stock-Tech | 0.29% | +0.07% | — | |
| 46 | AMAT | Applied Materials Inc | Stock-Tech | 0.28% | +0.13% | — | |
| 47 | AGG | Ishares Core U.s. Aggregate | ETF-Other | 0.27% | -0.04% | — | |
| 48 | MSI | Motorola Solutions Inc | Stock-Tech | 0.27% | -0.05% | — | |
| 49 | MPC | Marathon Petroleum CORP | Stock-Energy | 0.27% | -0.02% | — | |
| 50 | GEV | GE Vernova Inc | Stock-Industrials | 0.26% | +0.04% | — |
1–50 of 78
Portfolio Performance
Performance for Q3 2026
+1.5%
Performance Last 4 Quarters
+21.9%
Based on 85% of reported portfolio value with available pricing
- Stdev
- +13.8%
- Beta
- +0.97
- Alpha
- +0.3%
- Max Drawdown
- -6.6%
- Annualized Perf
- +19.6%
- Batting Avg vs S&P
- +55.6%
- Sortino
- +3.01
- Stutzer
- +0.42
- Treynor
- +0.19
- Sterling
- +1.18
- Calmar
- +2.97
- Information Ratio
- -0.05
- Tracking Error
- +4.7%
- Stdev Down
- +6.3%
- Winning Months %
- +66.7%
- Losing Months %
- +33.3%
- Best 12 Months
- +32.3%
- Worst 12 Months
- +13.4%
- Efficiency Ratio
- +0.52
- Sharpe
- +1.37
- Stdev Sectors
- +12.4%
- Skewness
- +0.38
- Kurtosis
- +0.19
- Upside Potential
- +4.64
Reported value over time
Sector allocation
Sector allocation over time
Quarterly history
Holding changes this quarter
Postrock Partners LLC's most significant position changes for 2026-06-30: New buy: West Pharmaceutical Services (WST); New buy: Entegris Inc (ENTG); New buy: Ishares Core S&p Midcap ETF (IJH); Sold out: L3harris Technologies Inc (LHX); Sold out: Eqt CORP (EQT).
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | MU | Micron Technology Inc | +1.7% | — | Unchanged |
| 2 | AMD | Advanced Micro Devices | +1.3% | — | Unchanged |
| 3 | GOOGL | Alphabet Inc-cl A | +0.6% | — | Unchanged |
| 4 | QCOM | Qualcomm Inc | +0.6% | — | Unchanged |
| 5 | PANW | Palo Alto Networks Inc | +0.4% | — | Unchanged |
| 6 | IVV | Ishares Core S&p 500 ETF | +0.4% | +5.94% | Add |
| 7 | GOOG | Alphabet Inc-cl C | +0.3% | — | Unchanged |
| 8 | HEI | Heico CORP | +0.2% | — | Unchanged |
| 9 | AMAT | Applied Materials Inc | +0.1% | — | Unchanged |
| 10 | WST | West Pharmaceutical Services | +0.1% | NEW | New buy |
| 11 | ENTG | Entegris Inc | +0.1% | NEW | New buy |
| 12 | IJH | Ishares Core S&p Midcap ETF | +0.1% | NEW | New buy |
| 13 | TECH | Bio-techne CORP | +0.1% | — | Unchanged |
| 14 | CGNX | Cognex CORP | +0.1% | — | Unchanged |
| 15 | RBA | Rb Global Inc | +0.1% | — | Unchanged |
| 16 | IJR | Ishares Core S&p Small-cap E | +0.1% | +13.35% | Add |
| 17 | CSCO | Cisco Systems Inc | +0.1% | — | Unchanged |
| 18 | AAPL | Apple Inc | 0% | — | Unchanged |
| 19 | GEV | GE Vernova Inc | 0% | — | Unchanged |
| 20 | NVDA | Nvidia CORP | 0% | +0.08% | Add |
| 21 | IWM | Ishares Russell 2000 ETF | 0% | — | Unchanged |
| 22 | CHE | Chemed CORP | 0% | — | Unchanged |
| 23 | QQQ | Invesco Qqq Trust Series 1 | 0% | — | Unchanged |
| 24 | AMZN | Amazon.com Inc | 0% | +0.17% | Add |
| 25 | SPY | Ss Spdr S&p 500 ETF Trust-us | 0% | — | Unchanged |
| 26 | BAC | Bank Of America CORP | 0% | — | Unchanged |
| 27 | GS | Goldman Sachs Group Inc | 0% | — | Unchanged |
| 28 | GNTX | Gentex CORP | — | — | Unchanged |
| 29 | IWR | Ishares Russell Mid-cap ETF | — | — | Unchanged |
| 30 | SNPS | Synopsys Inc | — | — | Unchanged |
| 31 | HWM | Howmet Aerospace Inc | — | — | Unchanged |
| 32 | IEMG | Ishares Core Msci Emerging | — | — | Unchanged |
| 33 | IBMQ | Ishares Ibonds Dec 2028 Muni | — | +11.32% | Add |
| 34 | JNJ | Johnson & Johnson | — | — | Unchanged |
| 35 | V | Visa Inc-class A Shares | 0% | — | Unchanged |
| 36 | JPM | Jpmorgan Chase & Co | 0% | — | Unchanged |
| 37 | IVE | Ishares S&p 500 Value ETF | 0% | — | Unchanged |
| 38 | IWS | Ishares Russell Mid-cap Valu | 0% | — | Unchanged |
| 39 | VNQ | Vanguard Real Estate ETF | 0% | — | Unchanged |
| 40 | HD | Home Depot Inc | 0% | — | Unchanged |
| 41 | MA | Mastercard Inc - A | 0% | — | Unchanged |
| 42 | MUB | Ishares National Muni Bond E | 0% | — | Unchanged |
| 43 | BRK-B | Berkshire Hathaway Inc-cl B | 0% | +2.34% | Add |
| 44 | MPC | Marathon Petroleum CORP | 0% | — | Unchanged |
| 45 | DHR | Danaher CORP | 0% | +4.17% | Add |
| 46 | UPS | United Parcel Service-cl B | 0% | — | Unchanged |
| 47 | IBMO | Ishares Ibonds Dec 2026 Term | 0% | +5.32% | Add |
| 48 | GILD | Gilead Sciences Inc | 0% | — | Unchanged |
| 49 | BMOP | Bny Meln Munipl Opp ETF | 0% | — | Unchanged |
| 50 | NOW | Servicenow Inc | 0% | +4.02% | Add |
1–50 of 85
Filing History
FAQ
What is Postrock Partners LLC and what type of investor is it?
Postrock Partners LLC is an investment manager that files SEC Form 13F quarterly, disclosing its U.S. public equity holdings to regulators. As of the most recent reporting period (2026-06-30), the firm manages a tracked equity portfolio valued at approximately $245.9M, spread across 78 disclosed positions.
What are Postrock Partners LLC's largest equity positions?
Based on the latest 13F filing, Postrock Partners LLC's top holdings by market value are:
1. Apple Inc (AAPL) — $41.6M (16.9%)
2. Berkshire Hathaway Inc-cl A (BRK-A) — $32.9M (13.4%)
3. Alphabet Inc-cl A (GOOGL) — $17.2M (7.0%)
4. Fastenal Co (FAST) — $16.3M (6.6%)
5. Ishares Core S&p 500 ETF (IVV) — $13.9M (5.6%)
What changes did Postrock Partners LLC make in its most recent portfolio filing?
In the latest reported quarter, Postrock Partners LLC made 25 notable position adjustments: 3 new positions were initiated, 15 existing holdings were added to, 0 positions were partially reduced, and 7 were completely exited. The largest of these moves: New buy: West Pharmaceutical Services (WST); New buy: Entegris Inc (ENTG); New buy: Ishares Core S&p Midcap ETF (IJH); Sold out: L3harris Technologies Inc (LHX); Sold out: Eqt CORP (EQT)
What sectors does Postrock Partners LLC focus on?
Postrock Partners LLC is concentrated in the following sectors based on its current disclosed equity portfolio:
• Information Technology: 42.4%
• Industrials: 16.1%
• Communication Services: 14.6%
• Consumer Discretionary: 11.1%
• Financials: 9.1%
• Health Care: 2.9%
💡
Data Source Notice: AlphaSMO is the web's most authoritative 13F / Inside Trader database. Institutional holdings and insider trades presented here are precisely computed to deliver accurate portfolio reporting.
Investment Profile
Postrock Partners LLC returned an annualized 19.6% over the trailing 18 months — outperforming the S&P 500 by 0.3 points — based on a reconstructed track record of its disclosed 13F positions, with a beta of 0.97 (roughly in line with the market) and a 56% quarterly batting average against the index.
Its portfolio is broadly diversified and long-term-holding, with 42.4% of the portfolio concentrated in Information Technology.
Its turnover score has risen from 0 to 17 over the past 4 quarters — a shift toward more active trading.
It has added to its MU position over the past two quarters (+$4.8M, now $6.3M), while trimming CTSH over the same stretch (-$1.7M, still holding $1.5M).
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Developer Access
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