CT
Chesley Taft & Associates LLC 13F Filings Tracker & Latest Positions (Q2 2026)
Chesley Taft & Associates LLCCIK: 0001164632
Diversified strategyMomentum followerQuality / disciplined sizing
Total reported value
$2.6B
Reporting period: 2026-06-30 · Number of holdings: 637
Chesley Taft & Associates LLC disclosed 637 holdings in its latest 13F filing for the period ending 2026-06-30, with total reported value of $2.6B and a quarterly turnover rate of 16.6%.
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Personality snowflake
- Concentration
- 6.43
- Portfolio Stability
- 16.58
- Momentum
- 100
- Sector conviction
- 48.14
- Diversification
- 100
- Sizing Uniformity
- 77.76
Chesley Taft & Associates LLC's disclosed holdings carry a Herfindahl concentration index of 0.016 — mathematically equivalent to about 62 equally-sized positions, well below its 637 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 2.22), 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
-5.4% $31.2M
Sold out HON
Add GOOG
-1.8% $25.6M
Trim MSFT
-8.8% -$7.1M
Trim COST
-1.8% -$5.2M
Trim GLD
-2.2% -$6.7M
Holdings Map
New buyAddUnchangedTrim
Top 10 holdings by weight
Full holdings list this quarter
Showing top 200 holdings (of 637 total)
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | GOOG | Alphabet Inc-cl C | Stock-Comm Services | 5.76% | +0.65% | -1.82% | |
| 2 | NVDA | Nvidia CORP | Stock-Tech | 3.62% | +0.17% | -1.79% | |
| 3 | AAPL | Apple Inc | Stock-Tech | 3.20% | +0.18% | -0.02% | |
| 4 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 3.16% | +0.20% | +0.11% | |
| 5 | MSFT | Microsoft CORP | Stock-Tech | 3.15% | -0.53% | -8.78% | |
| 6 | AVGO | Broadcom Inc | Stock-Tech | 3.13% | +0.30% | -2.50% | |
| 7 | PANW | Palo Alto Networks Inc | Stock-Tech | 2.42% | +1.13% | -5.42% | |
| 8 | COST | Costco Wholesale CORP | Stock-Consumer Staples | 2.41% | -0.39% | -1.80% | |
| 9 | JPM | Jpmorgan Chase & Co | Stock-Financials | 2.18% | +0.03% | -2.31% | |
| 10 | IJR | Ishares Core S&p Small-cap E | ETF-Small Cap | 2.15% | +0.23% | +0.43% | |
| 11 | JNJ | Johnson & Johnson | Stock-Healthcare | 2.07% | -0.08% | -0.46% | |
| 12 | IXUS | Ishares Core Intl Stock ETF | ETF-Other | 2.01% | +0.12% | +3.60% | |
| 13 | IJH | Ishares Core S&p Midcap ETF | ETF-Other | 1.81% | +0.11% | -0.28% | |
| 14 | SPY | Ss Spdr S&p 500 ETF Trust-us | ETF-Large Cap & Growth | 1.79% | +0.09% | -1.59% | |
| 15 | SYK | Stryker CORP | Stock-Healthcare | 1.70% | -0.21% | -0.32% | |
| 16 | V | Visa Inc-class A Shares | Stock-Financials | 1.64% | +0.09% | -0.01% | |
| 17 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 1.40% | +0.15% | -2.68% | |
| 18 | APH | Amphenol Corp-cl A | Stock-Tech | 1.39% | +0.30% | -2.04% | |
| 19 | CB | Chubb Limited | Stock-Financials | 1.38% | -0.02% | +1.08% | |
| 20 | GLD | Spdr Gold Shares | ETF-Commodities | 1.34% | -0.38% | -2.25% | |
| 21 | AXP | American Express Co | Stock-Financials | 1.08% | +0.03% | -1.53% | |
| 22 | MA | Mastercard Inc - A | Stock-Financials | 1.01% | -0.04% | +0.18% | |
| 23 | ABT | Abbott Laboratories | Stock-Healthcare | 0.99% | -0.05% | +15.27% | |
| 24 | VEA | Vanguard Ftse Developed ETF | ETF-Other | 0.98% | +0.07% | +4.65% | |
| 25 | IVV | Ishares Core S&p 500 ETF | ETF-Large Cap & Growth | 0.97% | +0.14% | +9.90% | |
| 26 | LLY | Eli Lilly & Co | Stock-Healthcare | 0.95% | +0.16% | -0.38% | |
| 27 | RTX | Rtx CORP | Stock-Industrials | 0.92% | -0.06% | +2.69% | |
| 28 | VEU | Vanguard Ftse All-world Ex-u | ETF-Other | 0.86% | +0.04% | +0.68% | |
| 29 | PEP | Pepsico Inc | Stock-Consumer Staples | 0.85% | -0.23% | -2.94% | |
| 30 | COF | Capital One Financial CORP | Stock-Financials | 0.85% | +0.07% | +6.71% | |
| 31 | KO | Coca-cola Co/the | Stock-Consumer Staples | 0.85% | -0.02% | -2.18% | |
| 32 | ORCL | Oracle CORP | Stock-Tech | 0.84% | -0.07% | -1.05% | |
| 33 | HD | Home Depot Inc | Stock-Consumer Disc | 0.84% | -0.05% | -6.29% | |
| 34 | C | Citigroup Inc | Stock-Financials | 0.83% | +0.12% | +2.09% | |
| 35 | TMO | Thermo Fisher Scientific Inc | Stock-Healthcare | 0.83% | -0.03% | +1.12% | |
| 36 | AZO | Autozone Inc | Stock-Consumer Disc | 0.82% | -0.10% | +1.20% | |
| 37 | META | Meta Platforms Inc-class A | Stock-Comm Services | 0.82% | -0.07% | -0.33% | |
| 38 | WM | Waste Management Inc | Stock-Industrials | 0.80% | -0.08% | +0.63% | |
| 39 | ITW | Illinois Tool Works | Stock-Industrials | 0.78% | -0.07% | -4.48% | |
| 40 | UBER | Uber Technologies Inc | Stock-Industrials | 0.76% | +0.08% | +19.90% | |
| 41 | EQT | Eqt CORP | Stock-Energy | 0.71% | -0.21% | -0.24% | |
| 42 | WFC | Wells Fargo & Co | Stock-Financials | 0.71% | -0.03% | -0.89% | |
| 43 | XOM | Exxon Mobil CORP | Stock-Energy | 0.69% | -0.26% | -3.67% | |
| 44 | JMUB | Jpmorgan Municipal ETF | ETF-Other | 0.62% | +0.03% | +11.22% | |
| 45 | AZN | AstraZeneca PLC | Stock-Healthcare | 0.60% | -0.05% | +3.14% | |
| 46 | MUB | Ishares National Muni Bond E | ETF-Other | 0.58% | -0.04% | -0.32% | |
| 47 | JMST | JPM Ultra-short Muni Income | ETF-Other | 0.57% | +0.08% | +24.16% | |
| 48 | EFA | Ishares Msci Eafe ETF | ETF-Other | 0.55% | — | — | |
| 49 | DIS | Walt Disney Co/the | Stock-Comm Services | 0.54% | -0.06% | -2.56% | |
| 50 | XLF | Ss Financial Select Sector | ETF-Other | 0.53% | +0.01% | +0.19% |
1–50 of 200
Portfolio Performance
Performance for Q3 2026
+3.9%
Performance Last 4 Quarters
+15.5%
- Stdev
- +11.1%
- Beta
- +0.83
- Alpha
- -0.3%
- Max Drawdown
- -7.3%
- Annualized Perf
- +17%
- Batting Avg vs S&P
- +38.9%
- Sortino
- +2.86
- Stutzer
- +0.43
- Treynor
- +0.2
- Sterling
- +1.09
- Calmar
- +2.34
- Information Ratio
- -1.02
- Tracking Error
- +3.6%
- Stdev Down
- +5.7%
- Winning Months %
- +66.7%
- Losing Months %
- +33.3%
- Best 12 Months
- +30%
- Worst 12 Months
- +6.7%
- Efficiency Ratio
- +0.58
- Sharpe
- +1.47
- Stdev Sectors
- +8%
- Skewness
- -0.14
- Kurtosis
- +0.02
- Upside Potential
- +4.46
Reported value over time
Sector allocation
Sector allocation over time
Quarterly history
| Period | Holdings | Total value | Stability | Top holdings | |
|---|---|---|---|---|---|
| 2026 Q2 | 637 | $2.6B | 17 | ||
| 2026 Q1 | 621 | $2.4B | 16 | ||
| 2025 Q4 | 624 | $2.5B | 13 | ||
| 2025 Q3 | 348 | $2.4B | 24 | ||
| 2025 Q2 | 334 | $2.2B | 0 | ||
| 2025 Q1 | 330 | $2.1B | 100 | ||
| 2024 Q4 | 326 | $2.2B | 0 | ||
| 2024 Q3 | 323 | $2.1B | 0 | ||
| 2024 Q2 | 309 | $2.0B | 0 | ||
| 2024 Q1 | 311 | $2.0B | 0 | ||
| 2023 Q4 | 301 | $1.8B | 0 | ||
| 2023 Q3 | 289 | $1.5B | 0 | ||
| 2023 Q2 | 291 | $1.6B | 0 | ||
| 2023 Q1 | 286 | $1.5B | 0 | ||
| 2022 Q4 | 284 | $1.5B | 0 | ||
| 2022 Q3 | 279 | $1.4B | 0 | ||
| 2022 Q2 | 286 | $1.5B | 0 | ||
| 2022 Q1 | 294 | $1.7B | 0 | ||
| 2021 Q4 | 300 | $1.9B | 0 | ||
| 2021 Q3 | 298 | $1.8B | 0 | ||
| 2021 Q2 | 294 | $1.7B | 100 | ||
| 2021 Q1 | 288 | $1.7B | 13 | ||
| 2020 Q4 | 286 | $1.6B | 14 | ||
| 2020 Q3 | 264 | $1.4B | 14 | ||
| 2020 Q2 | 257 | $1.3B | 25 | ||
| 2020 Q1 | 247 | $1.1B | 29 | ||
| 2019 Q4 | 263 | $1.4B | 15 | ||
| 2019 Q3 | 266 | $1.3B | 12 | ||
| 2019 Q2 | 253 | $1.3B | 13 | ||
| 2019 Q1 | 256 | $1.2B | 22 | ||
| 2018 Q4 | 254 | $1.0B | 27 | ||
| 2018 Q3 | 281 | $1.3B | 13 | ||
| 2018 Q2 | 273 | $1.2B | 11 | ||
| 2018 Q1 | 267 | $1.1B | 14 | ||
| 2017 Q4 | 285 | $1.2B | 13 | ||
| 2017 Q3 | 278 | $1.2B | 20 | ||
| 2017 Q2 | 276 | $1.1B | 13 | ||
| 2017 Q1 | 273 | $1.1B | 14 | ||
| 2016 Q4 | 268 | $1.0B | 17 | ||
| 2016 Q3 | 253 | $992.7M | 13 | ||
| 2016 Q2 | 250 | $975.2M | 11 | ||
| 2016 Q1 | 243 | $948.4M | 19 | ||
| 2015 Q4 | 246 | $951.8M | 26 | ||
| 2015 Q3 | 228 | $916.4M | 20 | ||
| 2015 Q2 | 232 | $980.7M | 11 | ||
| 2015 Q1 | 241 | $974.5M | 15 | ||
| 2014 Q4 | 244 | $988.9M | 19 | ||
| 2014 Q3 | 245 | $955.6M | 11 | ||
| 2014 Q2 | 250 | $967.3M | 15 | ||
| 2014 Q1 | 249 | $933.2M | 21 | ||
| 2013 Q4 | 268 | $1.0B | 15 | ||
| 2013 Q3 | 265 | $917.1M | 15 | ||
| 2013 Q2 | 264 | $862.9M | — |
Holding changes this quarter
Chesley Taft & Associates LLC's most significant position changes for 2026-06-30: Sold out: Honeywell International Inc (HON); Sold out: Tractor Supply Company (TSCO); New buy: Advanced Micro Devices (AMD); New buy: Toast Inc-class A (TOST); Sold out: Albemarle CORP (ALB).
Showing top 200 changes by size (of 388 total)
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | PANW | Palo Alto Networks Inc | +1.1% | -5.42% | Trim |
| 2 | GOOG | Alphabet Inc-cl C | +0.7% | -1.82% | Trim |
| 3 | AVGO | Broadcom Inc | +0.3% | -2.50% | Trim |
| 4 | APH | Amphenol Corp-cl A | +0.3% | -2.04% | Trim |
| 5 | MU | Micron Technology Inc | +0.3% | +113.32% | Add |
| 6 | IJR | Ishares Core S&p Small-cap E | +0.2% | +0.43% | Add |
| 7 | AMZN | Amazon.com Inc | +0.2% | +0.11% | Add |
| 8 | DELL | Dell Technologies -c | +0.2% | +58.45% | Add |
| 9 | AAPL | Apple Inc | +0.2% | -0.02% | Trim |
| 10 | CRM | Salesforce Inc | +0.2% | +96.56% | Add |
| 11 | NVDA | Nvidia CORP | +0.2% | -1.79% | Trim |
| 12 | LLY | Eli Lilly & Co | +0.2% | -0.38% | Trim |
| 13 | GOOGL | Alphabet Inc-cl A | +0.2% | -2.68% | Trim |
| 14 | IVV | Ishares Core S&p 500 ETF | +0.1% | +9.90% | Add |
| 15 | IXUS | Ishares Core Intl Stock ETF | +0.1% | +3.60% | Add |
| 16 | C | Citigroup Inc | +0.1% | +2.09% | Add |
| 17 | UNH | Unitedhealth Group Inc | +0.1% | -1.31% | Trim |
| 18 | IJH | Ishares Core S&p Midcap ETF | +0.1% | -0.28% | Trim |
| 19 | AMD | Advanced Micro Devices | +0.1% | NEW | New buy |
| 20 | INTC | Intel CORP | +0.1% | +0.69% | Add |
| 21 | SPY | Ss Spdr S&p 500 ETF Trust-us | +0.1% | -1.59% | Trim |
| 22 | V | Visa Inc-class A Shares | +0.1% | -0.01% | Trim |
| 23 | UBER | Uber Technologies Inc | +0.1% | +19.90% | Add |
| 24 | JMST | JPM Ultra-short Muni Income | +0.1% | +24.16% | Add |
| 25 | VEA | Vanguard Ftse Developed ETF | +0.1% | +4.65% | Add |
| 26 | COF | Capital One Financial CORP | +0.1% | +6.71% | Add |
| 27 | GEV | GE Vernova Inc | +0.1% | +2.52% | Add |
| 28 | AMAT | Applied Materials Inc | +0.1% | -15.17% | Trim |
| 29 | VB | Vanguard Small-cap ETF | +0.1% | +6.63% | Add |
| 30 | CSL | Carlisle Cos Inc | +0.1% | +80.64% | Add |
| 31 | TXN | Texas Instruments Inc | +0.1% | +9.54% | Add |
| 32 | TOST | Toast Inc-class A | +0.1% | NEW | New buy |
| 33 | GWW | Ww Grainger Inc | +0.1% | +0.72% | Add |
| 34 | VEU | Vanguard Ftse All-world Ex-u | 0% | +0.68% | Add |
| 35 | VO | Vanguard Mid-cap ETF | 0% | +317.41% | Add |
| 36 | URI | United Rentals Inc | 0% | -4.33% | Trim |
| 37 | BE | Bloom Energy Corp- A | 0% | -3.86% | Trim |
| 38 | GE | General Electric | 0% | -0.16% | Trim |
| 39 | USB | US Bancorp | 0% | NEW | New buy |
| 40 | CSCO | Cisco Systems Inc | 0% | +1.29% | Add |
| 41 | JPM | Jpmorgan Chase & Co | 0% | -2.31% | Trim |
| 42 | AXP | American Express Co | 0% | -1.53% | Trim |
| 43 | JMUB | Jpmorgan Municipal ETF | 0% | +11.22% | Add |
| 44 | VTI | Vanguard Total Stock Mkt ETF | 0% | +2.68% | Add |
| 45 | UNP | Union Pacific CORP | 0% | +1.39% | Add |
| 46 | QCOM | Qualcomm Inc | 0% | +7.67% | Add |
| 47 | CAT | Caterpillar Inc | 0% | +5.12% | Add |
| 48 | KLAC | Kla CORP | 0% | +607.99% | Add |
| 49 | GLW | Corning Inc | 0% | -17.01% | Trim |
| 50 | ULTA | Ulta Beauty Inc | 0% | +175.81% | Add |
1–50 of 200
* This report is exclusively curated by the AlphaSMO team. AlphaSMO is the web's most authoritative 13F / Inside Trader database, delivering precise insider trading and institutional holdings insights.
Filing History
FAQ
What is Chesley Taft & Associates LLC and what type of investor is it?
Chesley Taft & Associates 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 $2.6B, spread across 637 disclosed positions.
What are Chesley Taft & Associates LLC's largest equity positions?
Based on the latest 13F filing, Chesley Taft & Associates LLC's top holdings by market value are:
1. Alphabet Inc-cl C (GOOG) — $147.9M (5.8%)
2. Nvidia CORP (NVDA) — $93.0M (3.6%)
3. Apple Inc (AAPL) — $82.3M (3.2%)
4. Amazon.com Inc (AMZN) — $81.0M (3.2%)
5. Microsoft CORP (MSFT) — $81.0M (3.1%)
What changes did Chesley Taft & Associates LLC make in its most recent portfolio filing?
In the latest reported quarter, Chesley Taft & Associates LLC made 193 notable position adjustments: 15 new positions were initiated, 73 existing holdings were added to, 87 positions were partially reduced, and 18 were completely exited. The largest of these moves: Sold out: Honeywell International Inc (HON); Sold out: Tractor Supply Company (TSCO); New buy: Advanced Micro Devices (AMD); New buy: Toast Inc-class A (TOST); Sold out: Albemarle CORP (ALB)
What sectors does Chesley Taft & Associates LLC focus on?
Chesley Taft & Associates LLC is concentrated in the following sectors based on its current disclosed equity portfolio:
• Information Technology: 28.5%
• Financials: 17.0%
• Health Care: 12.7%
• Communication Services: 12.0%
• Industrials: 8.5%
• Consumer Discretionary: 8.3%
Investment Profile
Chesley Taft & Associates LLC returned an annualized 17.0% over the trailing 36 months — underperforming the S&P 500 by 0.3 points — based on a reconstructed track record of its disclosed 13F positions, with a beta of 0.83 (less volatile than the market) and a 39% quarterly batting average against the index.
Its portfolio is broadly diversified and long-term-holding.
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 IJR position over the past two quarters (+$11.2M, now $55.1M), while trimming MSFT over the same stretch (-$35.7M, still holding $81.0M).
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Developer Access
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