DS
Duncker Streett & Co Inc 13F Portfolio Snapshot & Holdings (Q2 2026)
Duncker Streett & Co IncCIK: 0001020585
Diversified strategyMomentum followerQuality / disciplined sizing
Total reported value
$590.8M
Reporting period: 2026-06-30 · Number of holdings: 521
DUNCKER STREETT & CO INC disclosed 521 holdings in its latest 13F filing for the period ending 2026-06-30, with total reported value of $590.8M and a quarterly turnover rate of 21.9%.
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Personality snowflake
- Concentration
- 6.09
- Portfolio Stability
- 21.91
- Momentum
- 100
- Sector conviction
- 48.36
- Diversification
- 100
- Sizing Uniformity
- 73.64
Duncker Streett & Co Inc's disclosed holdings carry a Herfindahl concentration index of 0.015 — mathematically equivalent to about 66 equally-sized positions, well below its 521 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 2.64), 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 PANW
+0.8% $7.4M
Trim XOM
-9.2% -$4.5M
Add XLK
+43.4% $7.4M
Add LLY
+721.8% $6.1M
Trim ISRG
-82.3% -$3.6M
Add KLAC
+972.9% $4.3M
Holdings Map
New buyAddUnchangedTrim
Top 10 holdings by weight
Full holdings list this quarter
Showing top 200 holdings (of 521 total)
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | AVGO | Broadcom Inc | Stock-Tech | 4.37% | +0.16% | -4.48% | |
| 2 | AAPL | Apple Inc | Stock-Tech | 4.20% | +0.31% | +6.41% | |
| 3 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 3.75% | +0.43% | +2.12% | |
| 4 | NVDA | Nvidia CORP | Stock-Tech | 3.23% | +0.49% | +15.38% | |
| 5 | ABBV | Abbvie Inc | Stock-Healthcare | 2.78% | -0.31% | -12.49% | |
| 6 | MSFT | Microsoft CORP | Stock-Tech | 2.73% | -0.27% | +1.33% | |
| 7 | JPM | Jpmorgan Chase & Co | Stock-Financials | 2.72% | -0.04% | -0.62% | |
| 8 | XLK | Ss Technology Select Sector | ETF-Tech | 2.42% | +1.10% | +43.40% | |
| 9 | PANW | Palo Alto Networks Inc | Stock-Tech | 2.35% | +1.12% | +0.82% | |
| 10 | MA | Mastercard Inc - A | Stock-Financials | 2.34% | -0.33% | -4.32% | |
| 11 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 2.20% | +0.06% | +1.04% | |
| 12 | HEI | Heico CORP | Stock-Industrials | 2.16% | +0.03% | -12.11% | |
| 13 | XOM | Exxon Mobil CORP | Stock-Energy | 2.08% | -1.12% | -9.21% | |
| 14 | TMO | Thermo Fisher Scientific Inc | Stock-Healthcare | 1.49% | -0.38% | -12.43% | |
| 15 | MRK | Merck & Co. Inc. | Stock-Healthcare | 1.46% | -0.05% | +1.64% | |
| 16 | DHR | Danaher CORP | Stock-Healthcare | 1.39% | -0.32% | -9.01% | |
| 17 | KLAC | Kla CORP | Stock-Tech | 1.35% | +0.66% | +972.94% | |
| 18 | PWR | Quanta Services Inc | Stock-Industrials | 1.34% | +0.26% | +5.60% | |
| 19 | CRWD | Crowdstrike Holdings Inc - A | Stock-Tech | 1.25% | +0.54% | +1.04% | |
| 20 | GS | Goldman Sachs Group Inc | Stock-Financials | 1.18% | +0.16% | +8.63% | |
| 21 | LLY | Eli Lilly & Co | Stock-Healthcare | 1.13% | +1.01% | +721.80% | |
| 22 | APH | Amphenol Corp-cl A | Stock-Tech | 1.13% | +0.15% | -7.12% | |
| 23 | IWM | Ishares Russell 2000 ETF | ETF-Small Cap | 1.12% | +0.13% | +5.09% | |
| 24 | LOW | Lowe's Cos Inc | Stock-Consumer Disc | 0.98% | -0.27% | -5.34% | |
| 25 | GOOG | Alphabet Inc-cl C | Stock-Comm Services | 0.96% | — | -9.27% | |
| 26 | COST | Costco Wholesale CORP | Stock-Consumer Staples | 0.95% | -0.21% | -1.93% | |
| 27 | WMT | Walmart Inc | Stock-Consumer Staples | 0.94% | -0.22% | -0.01% | |
| 28 | TGT | Target CORP | Stock-Consumer Disc | 0.92% | +0.17% | +27.80% | |
| 29 | PG | Procter & Gamble Co/the | Stock-Consumer Staples | 0.90% | -0.16% | -5.48% | |
| 30 | SPY | Ss Spdr S&p 500 ETF Trust-us | ETF-Large Cap & Growth | 0.81% | +0.08% | +8.13% | |
| 31 | URI | United Rentals Inc | Stock-Industrials | 0.78% | +0.23% | +2.80% | |
| 32 | ORLY | O'reilly Automotive Inc | Stock-Consumer Disc | 0.75% | -0.15% | -6.17% | |
| 33 | CVX | Chevron CORP | Stock-Energy | 0.72% | -0.20% | +9.72% | |
| 34 | TJX | Tjx Companies Inc | Stock-Consumer Disc | 0.72% | -0.13% | — | |
| 35 | BWXT | Bwx Technologies Inc | Stock-Industrials | 0.70% | +0.33% | +121.71% | |
| 36 | LIN | Linde plc | Stock-Materials | 0.69% | +0.13% | +33.43% | |
| 37 | HD | Home Depot Inc | Stock-Consumer Disc | 0.68% | -0.05% | -1.98% | |
| 38 | V | Visa Inc-class A Shares | Stock-Financials | 0.68% | -0.02% | -4.35% | |
| 39 | TDG | Transdigm Group Inc | Stock-Industrials | 0.67% | -0.02% | -4.72% | |
| 40 | AME | Ametek Inc | Stock-Industrials | 0.66% | -0.07% | -9.01% | |
| 41 | JNJ | Johnson & Johnson | Stock-Healthcare | 0.65% | -0.03% | +2.81% | |
| 42 | SPGI | S&p Global Inc | Stock-Financials | 0.61% | -0.25% | -16.21% | |
| 43 | ICE | Intercontinental Exchange In | Stock-Financials | 0.60% | -0.43% | -16.34% | |
| 44 | SLB | Slb LTD | Stock-Energy | 0.56% | -0.14% | +0.35% | |
| 45 | ITW | Illinois Tool Works | Stock-Industrials | 0.54% | -0.05% | +0.06% | |
| 46 | QCOM | Qualcomm Inc | Stock-Tech | 0.53% | +0.11% | -2.29% | |
| 47 | SYK | Stryker CORP | Stock-Healthcare | 0.52% | -0.27% | -22.60% | |
| 48 | IYW | Ishares Ustechnology ETF | ETF-Tech | 0.52% | +0.05% | -10.34% | |
| 49 | ABT | Abbott Laboratories | Stock-Healthcare | 0.51% | -0.16% | -2.77% | |
| 50 | CASY | Casey's General Stores Inc | Stock-Consumer Disc | 0.49% | +0.03% | +10.52% |
1–50 of 200
Portfolio Performance
Performance for Q3 2026
+4.2%
Performance Last 4 Quarters
+14.1%
- Stdev
- +11.4%
- Beta
- +0.85
- Alpha
- -1.8%
- Max Drawdown
- -7%
- Annualized Perf
- +15.6%
- Batting Avg vs S&P
- +30.6%
- Sortino
- +2.58
- Stutzer
- +0.39
- Treynor
- +0.18
- Sterling
- +1
- Calmar
- +2.22
- Information Ratio
- -1.33
- Tracking Error
- +3.6%
- Stdev Down
- +5.9%
- Winning Months %
- +66.7%
- Losing Months %
- +33.3%
- Best 12 Months
- +29.4%
- Worst 12 Months
- +5.5%
- Efficiency Ratio
- +0.52
- Sharpe
- +1.33
- Stdev Sectors
- +8%
- Skewness
- -0.07
- Kurtosis
- -0.37
- Upside Potential
- +4.26
Reported value over time
Sector allocation
Sector allocation over time
Quarterly history
| Period | Holdings | Total value | Stability | Top holdings | |
|---|---|---|---|---|---|
| 2026 Q2 | 521 | $590.8M | 22 | ||
| 2026 Q1 | 535 | $526.1M | 24 | ||
| 2025 Q4 | 534 | $562.7M | 17 | ||
| 2025 Q3 | 534 | $574.0M | 28 | ||
| 2025 Q2 | 512 | $548.0M | 0 | ||
| 2025 Q1 | 503 | $504.7M | 100 | ||
| 2024 Q4 | 530 | $538.6M | 0 | ||
| 2024 Q3 | 488 | $548.0M | 0 | ||
| 2024 Q2 | 487 | $520.2M | 0 | ||
| 2024 Q1 | 477 | $506.5M | 0 | ||
| 2023 Q4 | 490 | $473.7M | 0 | ||
| 2023 Q3 | 488 | $429.7M | 0 | ||
| 2023 Q2 | 503 | $447.1M | 0 | ||
| 2023 Q1 | 486 | $419.9M | 0 | ||
| 2022 Q4 | 509 | $414.2M | 0 | ||
| 2022 Q3 | 482 | $385.6M | 0 | ||
| 2022 Q2 | 494 | $417.3M | 0 | ||
| 2022 Q1 | 490 | $502.8M | 0 | ||
| 2021 Q4 | 515 | $580.8M | 0 | ||
| 2021 Q3 | 513 | $528.1M | 0 | ||
| 2021 Q2 | 499 | $542.4M | 98 | ||
| 2021 Q1 | 503 | $524.4M | 13 | ||
| 2020 Q4 | 576 | $516.9M | 16 | ||
| 2020 Q3 | 540 | $458.1M | 14 | ||
| 2020 Q2 | 554 | $420.3M | 22 | ||
| 2020 Q1 | 643 | $374.5M | 26 | ||
| 2019 Q4 | 665 | $476.7M | 16 | ||
| 2019 Q3 | 338 | $430.1M | 16 | ||
| 2019 Q2 | 673 | $445.6M | 10 | ||
| 2019 Q1 | 689 | $434.0M | 18 | ||
| 2018 Q4 | 694 | $373.5M | 19 | ||
| 2018 Q3 | 708 | $440.3M | 13 | ||
| 2018 Q2 | 709 | $403.2M | 12 | ||
| 2018 Q1 | 706 | $395.1M | 13 | ||
| 2017 Q4 | 701 | $389.0M | 23 | ||
| 2017 Q3 | 713 | $330.4M | 11 | ||
| 2017 Q2 | 724 | $320.7M | 10 | ||
| 2017 Q1 | 742 | $319.0M | 13 | ||
| 2016 Q4 | 732 | $300.7M | 12 | ||
| 2016 Q3 | 717 | $288.7M | 11 | ||
| 2016 Q2 | 710 | $281.2M | 9 | ||
| 2016 Q1 | 722 | $270.1M | 12 | ||
| 2015 Q4 | 744 | $266.8M | 13 | ||
| 2015 Q3 | 729 | $257.2M | 14 | ||
| 2015 Q2 | 727 | $286.9M | 15 | ||
| 2015 Q1 | 728 | $305.6M | 10 | ||
| 2014 Q4 | 723 | $305.0M | 14 | ||
| 2014 Q3 | 732 | $293.3M | 11 | ||
| 2014 Q2 | 691 | $309.1M | 13 | ||
| 2014 Q1 | 676 | $282.6M | 10 | ||
| 2013 Q4 | 679 | $277.8M | 14 | ||
| 2013 Q3 | 659 | $247.0M | 13 | ||
| 2013 Q2 | 674 | $261.1M | 0 |
Holding changes this quarter
Duncker Streett & Co Inc's most significant position changes for 2026-06-30: Sold out: Honeywell International Inc (HON); Sold out: Copart Inc (CPRT); New buy: ; New buy: ; Sold out: Firstservice CORP (FSV).
Showing top 200 changes by size (of 549 total)
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | PANW | Palo Alto Networks Inc | +1.1% | +0.82% | Add |
| 2 | XLK | Ss Technology Select Sector | +1.1% | +43.40% | Add |
| 3 | LLY | Eli Lilly & Co | +1% | +721.80% | Add |
| 4 | KLAC | Kla CORP | +0.7% | +972.94% | Add |
| 5 | CRWD | Crowdstrike Holdings Inc - A | +0.5% | +1.04% | Add |
| 6 | NVDA | Nvidia CORP | +0.5% | +15.38% | Add |
| 7 | GOOGL | Alphabet Inc-cl A | +0.4% | +2.12% | Add |
| 8 | IEMG | Ishares Core Msci Emerging | +0.4% | +27052.69% | Add |
| 9 | BWXT | Bwx Technologies Inc | +0.3% | +121.71% | Add |
| 10 | AAPL | Apple Inc | +0.3% | +6.41% | Add |
| 11 | VXUS | Vanguard Total Intl Stock | +0.3% | +437.17% | Add |
| 12 | PWR | Quanta Services Inc | +0.3% | +5.60% | Add |
| 13 | URI | United Rentals Inc | +0.2% | +2.80% | Add |
| 14 | EME | Emcor Group Inc | +0.2% | +62.16% | Add |
| 15 | TGT | Target CORP | +0.2% | +27.80% | Add |
| 16 | AVGO | Broadcom Inc | +0.2% | -4.48% | Trim |
| 17 | GS | Goldman Sachs Group Inc | +0.2% | +8.63% | Add |
| 18 | AMAT | Applied Materials Inc | +0.2% | -2.67% | Trim |
| 19 | APH | Amphenol Corp-cl A | +0.2% | -7.12% | Trim |
| 20 | XLP | Ss Consumer Staples Sel Sect | +0.1% | +1558.09% | Add |
| 21 | IWM | Ishares Russell 2000 ETF | +0.1% | +5.09% | Add |
| 22 | LIN | Linde plc | +0.1% | +33.43% | Add |
| 23 | QCOM | Qualcomm Inc | +0.1% | -2.29% | Trim |
| 24 | SPY | Ss Spdr S&p 500 ETF Trust-us | +0.1% | +8.13% | Add |
| 25 | XLV | Ss Health Care Select Sector | +0.1% | +53.06% | Add |
| 26 | GEV | GE Vernova Inc | +0.1% | +95.47% | Add |
| 27 | FTEC | Fidelity Msci Info Tech Indx | +0.1% | -0.74% | Trim |
| 28 | CSCO | Cisco Systems Inc | +0.1% | +2.66% | Add |
| 29 | ✓ | +0.1% | NEW | New buy | |
| 30 | ✓ | +0.1% | NEW | New buy | |
| 31 | AMZN | Amazon.com Inc | +0.1% | +1.04% | Add |
| 32 | CNC | Centene CORP | +0.1% | -18.40% | Trim |
| 33 | IYW | Ishares Ustechnology ETF | +0.1% | -10.34% | Trim |
| 34 | SCHA | Schwab US Small-cap ETF | 0% | -0.05% | Trim |
| 35 | RSP | Invesco S&p 500 Equal Weight | 0% | +26.59% | Add |
| 36 | HEI | Heico CORP | 0% | -12.11% | Trim |
| 37 | CASY | Casey's General Stores Inc | 0% | +10.52% | Add |
| 38 | CDNS | Cadence Design Sys Inc | 0% | -0.69% | Trim |
| 39 | XLY | Ss Consumer Disc Select Sect | 0% | +43.90% | Add |
| 40 | FTNT | Fortinet Inc | 0% | — | Unchanged |
| 41 | XLF | Ss Financial Select Sector | 0% | +37.14% | Add |
| 42 | MU | Micron Technology Inc | 0% | — | Unchanged |
| 43 | GLW | Corning Inc | 0% | — | Unchanged |
| 44 | GNRC | Generac Holdings Inc | 0% | — | Unchanged |
| 45 | XLI | Ss Industrial Select Sector | 0% | +9.51% | Add |
| 46 | QQQ | Invesco Qqq Trust Series 1 | 0% | -0.92% | Trim |
| 47 | XLC | Ss Comm Select Sector Spdr | 0% | +40.41% | Add |
| 48 | XLB | Ss Materials Select Sector | 0% | +163.33% | Add |
| 49 | UNH | Unitedhealth Group Inc | 0% | -3.22% | Trim |
| 50 | ASML | ASML Holding N.V. | 0% | — | Unchanged |
1–50 of 200
Filing History
FAQ
What is Duncker Streett & Co Inc and what type of investor is it?
Duncker Streett & Co Inc 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 $590.8M, spread across 521 disclosed positions.
What are Duncker Streett & Co Inc's largest equity positions?
Based on the latest 13F filing, Duncker Streett & Co Inc's top holdings by market value are:
1. Broadcom Inc (AVGO) — $25.8M (4.4%)
2. Apple Inc (AAPL) — $24.8M (4.2%)
3. Alphabet Inc-cl A (GOOGL) — $22.2M (3.8%)
4. Nvidia CORP (NVDA) — $19.1M (3.2%)
5. Abbvie Inc (ABBV) — $16.4M (2.8%)
What changes did Duncker Streett & Co Inc make in its most recent portfolio filing?
In the latest reported quarter, Duncker Streett & Co Inc made 161 notable position adjustments: 2 new positions were initiated, 63 existing holdings were added to, 91 positions were partially reduced, and 5 were completely exited. The largest of these moves: Sold out: Honeywell International Inc (HON); Sold out: Copart Inc (CPRT); New buy: ; New buy: ; Sold out: Firstservice CORP (FSV)
What sectors does Duncker Streett & Co Inc focus on?
Duncker Streett & Co Inc is concentrated in the following sectors based on its current disclosed equity portfolio:
• Information Technology: 28.6%
• Industrials: 14.6%
• Health Care: 14.5%
• Financials: 13.9%
• Consumer Discretionary: 8.9%
• Communication Services: 6.5%
Investment Profile
Duncker Streett & Co Inc returned an annualized 15.6% over the trailing 36 months — underperforming the S&P 500 by 1.8 points — based on a reconstructed track record of its disclosed 13F positions, with a beta of 0.85 (less volatile than the market) and a 31% quarterly batting average against the index.
Its portfolio is broadly diversified and moderately active.
Its turnover score has risen from 0 to 22 over the past 4 quarters — a shift toward more active trading.
It has added to its KLAC position over the past two quarters (+$6.5M, now $8.0M), while trimming TMO over the same stretch (-$5.6M, still holding $8.8M).
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Developer Access
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