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Ampfield Management, L.P. SEC 13F Holdings (Q2 2026) — Top Position: ESQUIRE FINANCIAL HOLDINGS I
Ampfield Management, L.P.CIK: 0001853635
High-turnover traderConcentrated strategySector-focused
Total reported value
$100.2K
Reporting period: 2026-06-30 · Number of holdings: 5
Ampfield Management, L.P. disclosed 5 holdings in its latest 13F filing for the period ending 2026-06-30, with total reported value of $100.2K and a quarterly turnover rate of 199.5%.
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Personality snowflake
- Concentration
- 100
- Portfolio Stability
- 100
- Momentum
- 100
- Sector conviction
- 100
- Diversification
- 10
- Sizing Uniformity
- 92.72
Ampfield Management, L.P.'s disclosed holdings carry a Herfindahl concentration index of 0.285 — mathematically equivalent to about 4 equally-sized positions, close to its 5 actual disclosed holdings. Value is spread relatively evenly across the portfolio rather than concentrated in a handful of names.
Position sizes are fairly uniform across the portfolio (a coefficient of variation of 0.73), suggesting a disciplined, rules-based approach to how much capital goes into each idea.
Recent activity leans toward adding more aggressively to already-large existing positions than to newly initiated ones (a 20.2 percentage-point tilt) — a pattern consistent with a momentum-following approach.
Sector classification currently covers about 40% 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.
Source and citation information
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Recent moves
View source Form 13F filing on SEC.govTrim TDG
-12.2% -$28.3M
Add ESQ
+34.4% -$25.0M
Add SABR
+1.1% -$7.5M
Trim NBN
0.0% -$19.5M
Trim ROST
0.0% -$361.6K
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 | ESQ | Esquire Financial Holdings I | Stock-Other | 37.25% | +6.22% | +34.41% | |
| 2 | TDG | Transdigm Group Inc | Stock-Industrials | 28.54% | -6.55% | -12.22% | |
| 3 | NBN | Northeast Bank | Stock-Other | 22.95% | -1.19% | — | |
| 4 | SABR | Sabre CORP | Stock-Tech | 10.91% | +1.62% | +1.13% | |
| 5 | ROST | Ross Stores Inc | Stock-Consumer Disc | 0.35% | -0.10% | — |
💡
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.
Portfolio Performance
Performance for Q3 2026
+2%
Performance Last 4 Quarters
+15.9%
- Stdev
- +23.9%
- Beta
- +1.04
- Alpha
- -5.6%
- Max Drawdown
- -20.4%
- Annualized Perf
- +13.1%
- Batting Avg vs S&P
- +50%
- Sortino
- +1.05
- Stutzer
- +0.19
- Treynor
- +0.15
- Sterling
- +0.61
- Calmar
- +0.64
- Information Ratio
- -0.24
- Tracking Error
- +19.8%
- Stdev Down
- +14.4%
- Winning Months %
- +55.6%
- Losing Months %
- +44.4%
- Best 12 Months
- +38.6%
- Worst 12 Months
- -9.8%
- Efficiency Ratio
- +0.23
- Sharpe
- +0.63
- Stdev Sectors
- +29.2%
- Skewness
- +0.08
- Kurtosis
- +0.46
- Upside Potential
- +2.78
Reported value over time
Sector allocation
Sector allocation over time
Quarterly history
| Period | Holdings | Total value | Stability | Top holdings | |
|---|---|---|---|---|---|
| 2026 Q2 | 5 | $100.2K | 100 | ||
| 2026 Q1 | 5 | $80.8M | 70 | ||
| 2025 Q4 | 4 | $66.7M | 39 | ||
| 2025 Q3 | 4 | $89.7M | 11 | ||
| 2025 Q2 | 5 | $133.8M | 0 | ||
| 2025 Q1 | 4 | $85.0M | 100 | ||
| 2024 Q4 | 4 | $96.1M | 0 | ||
| 2024 Q3 | 4 | $95.9M | 0 | ||
| 2024 Q2 | 5 | $108.5M | 0 | ||
| 2024 Q1 | 5 | $144.5M | 0 | ||
| 2023 Q4 | 5 | $153.2M | 0 | ||
| 2023 Q3 | 3 | $111.8M | 0 | ||
| 2023 Q2 | 3 | $139.9M | 0 | ||
| 2023 Q1 | 4 | $148.8M | 0 | ||
| 2022 Q4 | 3 | $97.6M | 0 | ||
| 2022 Q3 | 4 | $68.8M | 0 | ||
| 2022 Q2 | 4 | $64.4M | 0 | ||
| 2022 Q1 | 7 | $86.8M | 0 | ||
| 2021 Q4 | 6 | $102.6M | 0 | ||
| 2021 Q3 | 13 | $114.6M | 0 | ||
| 2021 Q2 | 16 | $122.4M | 98 | ||
| 2021 Q1 | 21 | $118.1M | 0 |
Holding changes this quarter
Ampfield Management, L.P.'s most significant position changes for 2026-06-30: Trim: Transdigm Group Inc (TDG) — shares -12.22%; Add: Esquire Financial Holdings I (ESQ) — shares +34.41%; Add: Sabre CORP (SABR) — shares +1.13%.
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | ESQ | Esquire Financial Holdings I | +6.2% | +34.41% | Add |
| 2 | SABR | Sabre CORP | +1.6% | +1.13% | Add |
| 3 | ROST | Ross Stores Inc | -0.1% | — | Unchanged |
| 4 | NBN | Northeast Bank | -1.2% | — | Unchanged |
| 5 | TDG | Transdigm Group Inc | -6.6% | -12.22% | Trim |
Filing History
FAQ
What is Ampfield Management, L.P. and what type of investor is it?
Ampfield Management, L.P. 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 $100.2K, spread across 5 disclosed positions.
What are Ampfield Management, L.P.'s largest equity positions?
Based on the latest 13F filing, Ampfield Management, L.P.'s top holdings by market value are:
1. Esquire Financial Holdings I (ESQ) — $37.3K (37.3%)
2. Transdigm Group Inc (TDG) — $28.6K (28.5%)
3. Northeast Bank (NBN) — $23.0K (22.9%)
4. Sabre CORP (SABR) — $10.9K (10.9%)
5. Ross Stores Inc (ROST) — $355.0 (0.3%)
What changes did Ampfield Management, L.P. make in its most recent portfolio filing?
In the latest reported quarter, Ampfield Management, L.P. made 3 notable position adjustments: 0 new positions were initiated, 2 existing holdings were added to, 1 positions were partially reduced, and 0 were completely exited. The largest of these moves: Trim: Transdigm Group Inc (TDG) — shares -12.22%; Add: Esquire Financial Holdings I (ESQ) — shares +34.41%; Add: Sabre CORP (SABR) — shares +1.13%
What sectors does Ampfield Management, L.P. focus on?
Ampfield Management, L.P. is concentrated in the following sectors based on its current disclosed equity portfolio:
• Industrials: 71.7%
• Information Technology: 27.4%
• Consumer Discretionary: 0.9%
Investment Profile
Ampfield Management, L.P. returned an annualized 13.1% over the trailing 36 months — underperforming the S&P 500 by 5.6 points — based on a reconstructed track record of its disclosed 13F positions, with a beta of 1.04 (roughly in line with the market) and a 50% quarterly batting average against the index.
Its portfolio is concentrated and fast-trading, with 71.7% of the portfolio concentrated in Industrials.
Its turnover score has risen from 0 to 100 over the past 4 quarters — a shift toward more active trading.
It has trimmed its TDG position for two straight quarters, cutting it by $43.8M while still holding $28.6K.
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