CA
Congress Asset Management Co Investment Portfolio (Q3 2026) — 13F Stock Holdings
Congress Asset Management CoCIK: 0000897378
Diversified strategyMomentum followerQuality / disciplined sizing
Total reported value
$15.4B
Reporting period: 2026-09-30 · Number of holdings: 406
CONGRESS ASSET MANAGEMENT CO disclosed 406 holdings in its latest 13F filing for the period ending 2026-09-30, with total reported value of $15.4B and a quarterly turnover rate of 32.8%.
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Personality snowflake
- Concentration
- 4.02
- Portfolio Stability
- 32.82
- Momentum
- 100
- Sector conviction
- 60.06
- Diversification
- 100
- Sizing Uniformity
- 82.43
Congress Asset Management Co's disclosed holdings carry a Herfindahl concentration index of 0.010 — mathematically equivalent to about 99 equally-sized positions, well below its 406 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 1.76), 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 HALO
+85.6% $155.7M
Trim MOD
-99.1% -$167.0M
Trim STRL
-70.8% -$160.3M
Sold out UTI
Add MSFT
-1.7% $106.8M
Sold out KLIC
Holdings Map
New buyAddUnchangedTrim
Top 10 holdings by weight
Full holdings list this quarter
Showing top 200 holdings (of 406 total)
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | NVDA | Nvidia CORP | Stock-Tech | 3.81% | +0.57% | -2.15% | |
| 2 | AAPL | Apple Inc | Stock-Tech | 3.44% | +0.57% | -0.97% | |
| 3 | GOOGL | Alphabet Inc-cl A | Stock-Comm Services | 2.75% | +0.51% | +21.07% | |
| 4 | MSFT | Microsoft CORP | Stock-Tech | 2.66% | +0.79% | -1.73% | |
| 5 | AVGO | Broadcom Inc | Stock-Tech | 1.87% | +0.15% | +11.20% | |
| 6 | HALO | Halozyme Therapeutics Inc | Stock-Healthcare | 1.63% | +1.04% | +85.63% | |
| 7 | ANET | Arista Networks Inc | Stock-Tech | 1.38% | +0.15% | -10.81% | |
| 8 | LGND | Ligand Pharmaceuticals | Stock-Healthcare | 1.33% | +0.05% | -0.21% | |
| 9 | META | Meta Platforms Inc-class A | Stock-Comm Services | 1.32% | +0.31% | -3.87% | |
| 10 | RGEN | Repligen CORP | Stock-Healthcare | 1.27% | +0.42% | +0.86% | |
| 11 | V | Visa Inc-class A Shares | Stock-Financials | 1.22% | -0.18% | -21.30% | |
| 12 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 1.20% | +0.12% | +0.98% | |
| 13 | COST | Costco Wholesale CORP | Stock-Consumer Staples | 1.19% | -0.01% | -3.74% | |
| 14 | APH | Amphenol Corp-cl A | Stock-Tech | 1.17% | -0.15% | +75.90% | |
| 15 | MDB | Mongodb Inc | Stock-Tech | 1.13% | +0.07% | -1.74% | |
| 16 | UFPT | Ufp Technologies Inc | Stock-Other | 1.11% | -0.01% | -15.81% | |
| 17 | ETN | Eaton Corporation plc | Stock-Industrials | 1.10% | +0.02% | -4.62% | |
| 18 | ASML | ASML Holding N.V. | Stock-Tech | 1.05% | -0.03% | +1.45% | |
| 19 | WELL | Welltower Inc | Stock-Real Estate | 1.04% | +0.03% | -3.44% | |
| 20 | MOG-A | Moog Inc-class A | Stock-Other | 1.00% | -0.06% | -0.63% | |
| 21 | GEV | GE Vernova Inc | Stock-Industrials | 0.98% | -0.41% | -17.83% | |
| 22 | IDCC | Interdigital Inc | Stock-Tech | 0.97% | +0.24% | +8.69% | |
| 23 | TGTX | Tg Therapeutics Inc | Stock-Healthcare | 0.94% | +0.06% | +0.25% | |
| 24 | LLY | Eli Lilly & Co | Stock-Healthcare | 0.93% | +0.02% | +1.18% | |
| 25 | PH | Parker Hannifin CORP | Stock-Industrials | 0.90% | -0.02% | -4.39% | |
| 26 | NOVT | Novanta Inc | Stock-Other | 0.90% | -0.07% | +0.62% | |
| 27 | IMAX | Imax CORP | Stock-Other | 0.90% | +0.28% | +0.18% | |
| 28 | FROG | JFrog Ltd. | Stock-Tech | 0.89% | +0.20% | +14.36% | |
| 29 | HWM | Howmet Aerospace Inc | Stock-Industrials | 0.87% | -0.16% | -4.16% | |
| 30 | NPO | Enpro Inc | Stock-Industrials | 0.86% | -0.14% | -0.49% | |
| 31 | EAT | Brinker International Inc | Stock-Consumer Disc | 0.84% | +0.13% | -1.98% | |
| 32 | IBKR | Interactive Brokers Gro-cl A | Stock-Financials | 0.83% | +0.01% | -1.66% | |
| 33 | GS | Goldman Sachs Group Inc | Stock-Financials | 0.82% | -0.31% | -22.73% | |
| 34 | MU | Micron Technology Inc | Stock-Tech | 0.82% | +0.40% | +98.97% | |
| 35 | TJX | Tjx Companies Inc | Stock-Consumer Disc | 0.81% | -0.05% | +2.02% | |
| 36 | SXT | Sensient Technologies CORP | Stock-Materials | 0.79% | +0.08% | +0.19% | |
| 37 | ECL | Ecolab Inc | Stock-Materials | 0.77% | -0.01% | -4.45% | |
| 38 | CVLT | Commvault Systems Inc | Stock-Tech | 0.76% | -0.05% | -15.10% | |
| 39 | LIVN | LivaNova PLC | Stock-Other | 0.75% | -0.01% | +0.04% | |
| 40 | WMB | Williams Cos Inc | Stock-Energy | 0.74% | -0.06% | -3.97% | |
| 41 | ARM | Arm Holdings Plc-adr | Stock-Tech | 0.73% | -0.16% | -4.87% | |
| 42 | MMSI | Merit Medical Systems Inc | Stock-Healthcare | 0.70% | +0.19% | +6.45% | |
| 43 | SHOP | Shopify Inc - Class A | Stock-Tech | 0.70% | +0.16% | -4.42% | |
| 44 | SKY | Champion Homes Inc | Stock-Consumer Disc | 0.68% | +0.02% | +0.79% | |
| 45 | HLT | Hilton Worldwide Holdings In | Stock-Consumer Disc | 0.68% | -0.02% | -4.79% | |
| 46 | PJT | Pjt Partners Inc - A | Stock-Financials | 0.67% | — | +0.71% | |
| 47 | VCEL | Vericel CORP | Stock-Other | 0.66% | -0.14% | -12.49% | |
| 48 | NVT | nVent Electric plc | Stock-Industrials | 0.65% | -0.38% | -36.35% | |
| 49 | MPWR | Monolithic Power Systems Inc | Stock-Tech | 0.65% | -0.03% | -7.52% | |
| 50 | KEX | Kirby CORP | Stock-Industrials | 0.65% | +0.06% | +8.15% |
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.
Portfolio Performance
Performance for Q4 2026
+1.7%
Performance Last 4 Quarters
+10.4%
- Stdev
- +14%
- Beta
- +1.07
- Alpha
- -8.1%
- Max Drawdown
- -12.3%
- Annualized Perf
- +16.7%
- Batting Avg vs S&P
- +27.8%
- Sortino
- +2.19
- Stutzer
- +0.34
- Treynor
- +0.15
- Sterling
- +0.94
- Calmar
- +1.36
- Information Ratio
- -1.25
- Tracking Error
- +5.2%
- Stdev Down
- +7.5%
- Winning Months %
- +66.7%
- Losing Months %
- +33.3%
- Best 12 Months
- +29.7%
- Worst 12 Months
- -3.2%
- Efficiency Ratio
- +0.48
- Sharpe
- +1.18
- Stdev Sectors
- +10%
- Skewness
- -0.03
- Kurtosis
- -0.21
- Upside Potential
- +3.8
Reported value over time
Sector allocation
Sector allocation over time
Quarterly history
| Period | Holdings | Total value | Stability | Top holdings | |
|---|---|---|---|---|---|
| 2026 Q3 | 406 | $15.4B | 33 | ||
| 2026 Q2 | 376 | $16.3B | 40 | ||
| 2026 Q1 | 417 | $14.0B | 29 | ||
| 2025 Q4 | 381 | $14.2B | 29 | ||
| 2025 Q3 | 392 | $15.0B | 51 | ||
| 2025 Q2 | 382 | $14.6B | 0 | ||
| 2025 Q1 | 365 | $13.4B | 100 | ||
| 2024 Q4 | 386 | $14.8B | 0 | ||
| 2024 Q3 | 357 | $14.7B | 0 | ||
| 2024 Q2 | 364 | $14.0B | 0 | ||
| 2024 Q1 | 357 | $14.0B | 0 | ||
| 2023 Q4 | 371 | $12.7B | 0 | ||
| 2023 Q3 | 374 | $11.3B | 0 | ||
| 2023 Q2 | 373 | $11.5B | 0 | ||
| 2023 Q1 | 368 | $10.7B | 0 | ||
| 2022 Q4 | 375 | $10.0B | 0 | ||
| 2022 Q3 | 365 | $9.3B | 0 | ||
| 2022 Q2 | 366 | $10.4B | 0 | ||
| 2022 Q1 | 361 | $11.8B | 0 | ||
| 2021 Q4 | 366 | $13.1B | 0 | ||
| 2021 Q3 | 357 | $12.8B | 0 | ||
| 2021 Q2 | 362 | $12.0B | 100 | ||
| 2021 Q1 | 355 | $11.1B | 18 | ||
| 2020 Q4 | 349 | $10.6B | 21 | ||
| 2020 Q3 | 334 | $9.2B | 19 | ||
| 2020 Q2 | 323 | $8.4B | 35 | ||
| 2020 Q1 | 329 | $6.6B | 36 | ||
| 2019 Q4 | 344 | $8.2B | 19 | ||
| 2019 Q3 | 344 | $7.8B | 21 | ||
| 2019 Q2 | 352 | $7.9B | 15 | ||
| 2019 Q1 | 351 | $7.6B | 28 | ||
| 2018 Q4 | 363 | $6.6B | 38 | ||
| 2018 Q3 | 363 | $7.7B | 19 | ||
| 2018 Q2 | 367 | $7.3B | 23 | ||
| 2018 Q1 | 378 | $7.1B | 25 | ||
| 2017 Q4 | 373 | $6.9B | 24 | ||
| 2017 Q3 | 384 | $6.5B | 34 | ||
| 2017 Q2 | 254 | $5.6B | 23 | ||
| 2017 Q1 | 251 | $5.2B | 22 | ||
| 2016 Q4 | 257 | $4.8B | 23 | ||
| 2016 Q3 | 250 | $4.5B | 17 | ||
| 2016 Q2 | 225 | $4.3B | 30 | ||
| 2016 Q1 | 228 | $4.1B | 27 | ||
| 2015 Q4 | 232 | $4.0B | 20 | ||
| 2015 Q3 | 216 | $3.9B | 34 | ||
| 2015 Q2 | 231 | $3.5B | 32 | ||
| 2015 Q1 | 231 | $4.2B | 24 | ||
| 2014 Q4 | 239 | $3.9B | 18 | ||
| 2014 Q3 | 240 | $3.9B | 29 | ||
| 2014 Q2 | 243 | $3.9B | 30 | ||
| 2014 Q1 | 242 | $4.0B | 39 | ||
| 2013 Q4 | 229 | $3.8B | 19 | ||
| 2013 Q3 | 223 | $3.6B | 35 | ||
| 2013 Q2 | 222 | $3.4B | — |
Holding changes this quarter
Congress Asset Management Co's most significant position changes for 2026-09-30: Sold out: Universal Technical Institut (UTI); Sold out: Kulicke & Soffa Industries (KLIC); New buy: Crowdstrike Holdings Inc - A (CRWD); New buy: Veracyte Inc (VCYT); Sold out: Alnylam Pharmaceuticals Inc (ALNY).
Showing top 200 changes by size (of 427 total)
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | HALO | Halozyme Therapeutics Inc | +1% | +85.63% | Add |
| 2 | MSFT | Microsoft CORP | +0.8% | -1.73% | Trim |
| 3 | CRWD | Crowdstrike Holdings Inc - A | +0.6% | NEW | New buy |
| 4 | VCYT | Veracyte Inc | +0.6% | NEW | New buy |
| 5 | AAPL | Apple Inc | +0.6% | -0.97% | Trim |
| 6 | NVDA | Nvidia CORP | +0.6% | -2.15% | Trim |
| 7 | YOU | Clear Secure Inc -class A | +0.5% | NEW | New buy |
| 8 | GOOGL | Alphabet Inc-cl A | +0.5% | +21.07% | Add |
| 9 | MDT | Medtronic plc | +0.5% | NEW | New buy |
| 10 | TSLA | Tesla Inc | +0.5% | +13082.75% | Add |
| 11 | LITE | Lumentum Holdings Inc | +0.5% | NEW | New buy |
| 12 | RGEN | Repligen CORP | +0.4% | +0.86% | Add |
| 13 | BELFB | Bel Fuse Inc-cl B | +0.4% | NEW | New buy |
| 14 | MU | Micron Technology Inc | +0.4% | +98.97% | Add |
| 15 | MTRN | Materion CORP | +0.3% | NEW | New buy |
| 16 | PLXS | Plexus CORP | +0.3% | +204.05% | Add |
| 17 | META | Meta Platforms Inc-class A | +0.3% | -3.87% | Trim |
| 18 | VTR | Ventas Inc | +0.3% | NEW | New buy |
| 19 | IMAX | Imax CORP | +0.3% | +0.18% | Add |
| 20 | RBRK | Rubrik Inc-a | +0.3% | +32.59% | Add |
| 21 | PLTR | Palantir Technologies Inc-a | +0.2% | -1.23% | Trim |
| 22 | IDCC | Interdigital Inc | +0.2% | +8.69% | Add |
| 23 | WSM | Williams-sonoma Inc | +0.2% | NEW | New buy |
| 24 | RPRX | Royalty Pharma plc | +0.2% | NEW | New buy |
| 25 | FROG | JFrog Ltd. | +0.2% | +14.36% | Add |
| 26 | MMSI | Merit Medical Systems Inc | +0.2% | +6.45% | Add |
| 27 | ✓ | +0.2% | NEW | New buy | |
| 28 | IQV | Iqvia Holdings Inc | +0.2% | NEW | New buy |
| 29 | MSGE | Madison Square Garden Entert | +0.2% | NEW | New buy |
| 30 | SHOP | Shopify Inc - Class A | +0.2% | -4.42% | Trim |
| 31 | NET | Cloudflare Inc - Class A | +0.2% | -3.01% | Trim |
| 32 | CGNX | Cognex CORP | +0.2% | NEW | New buy |
| 33 | ANET | Arista Networks Inc | +0.2% | -10.81% | Trim |
| 34 | AVGO | Broadcom Inc | +0.2% | +11.20% | Add |
| 35 | SITM | Sitime CORP | +0.1% | NEW | New buy |
| 36 | EAT | Brinker International Inc | +0.1% | -1.98% | Trim |
| 37 | TWLO | Twilio Inc - A | +0.1% | +16.15% | Add |
| 38 | TOST | Toast Inc-class A | +0.1% | +46.32% | Add |
| 39 | AMRX | Amneal Pharmaceuticals Inc | +0.1% | +94.74% | Add |
| 40 | TXN | Texas Instruments Inc | +0.1% | +26.51% | Add |
| 41 | AMZN | Amazon.com Inc | +0.1% | +0.98% | Add |
| 42 | ✓ | +0.1% | NEW | New buy | |
| 43 | OTTR | Otter Tail CORP | +0.1% | NEW | New buy |
| 44 | SXT | Sensient Technologies CORP | +0.1% | +0.19% | Add |
| 45 | ELF | Elf Beauty Inc | +0.1% | +5.66% | Add |
| 46 | DELL | Dell Technologies -c | +0.1% | -3.77% | Trim |
| 47 | FSS | Federal Signal CORP | +0.1% | +23.23% | Add |
| 48 | MDB | Mongodb Inc | +0.1% | -1.74% | Trim |
| 49 | EQT | Eqt CORP | +0.1% | NEW | New buy |
| 50 | HURN | Huron Consulting Group Inc | +0.1% | +12.47% | Add |
1–50 of 200
Filing History
FAQ
What is Congress Asset Management Co and what type of investor is it?
Congress Asset Management Co 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 (2026-09-30), the firm manages a tracked equity portfolio valued at approximately $15.4B, spread across 406 disclosed positions.
What are Congress Asset Management Co's largest equity positions?
Based on the latest 13F filing, Congress Asset Management Co's top holdings by market value are:
1. Nvidia CORP (NVDA) — $587.3M (3.8%)
2. Apple Inc (AAPL) — $530.9M (3.4%)
3. Alphabet Inc-cl A (GOOGL) — $425.0M (2.8%)
4. Microsoft CORP (MSFT) — $411.0M (2.7%)
5. Broadcom Inc (AVGO) — $288.3M (1.9%)
What changes did Congress Asset Management Co make in its most recent portfolio filing?
In the latest reported quarter, Congress Asset Management Co made 200 notable position adjustments: 23 new positions were initiated, 76 existing holdings were added to, 93 positions were partially reduced, and 8 were completely exited. The largest of these moves: Sold out: Universal Technical Institut (UTI); Sold out: Kulicke & Soffa Industries (KLIC); New buy: Crowdstrike Holdings Inc - A (CRWD); New buy: Veracyte Inc (VCYT); Sold out: Alnylam Pharmaceuticals Inc (ALNY)
What sectors does Congress Asset Management Co focus on?
Congress Asset Management Co is concentrated in the following sectors based on its current disclosed equity portfolio:
• Information Technology: 36.6%
• Industrials: 17.3%
• Health Care: 11.5%
• Consumer Discretionary: 9.9%
• Financials: 8.8%
• Communication Services: 5.6%
Investment Profile
Congress Asset Management Co returned an annualized 16.7% over the trailing 36 months — underperforming the S&P 500 by 8.1 points — based on a reconstructed track record of its disclosed 13F positions, with a beta of 1.07 (roughly in line with the market) and a 28% quarterly batting average against the index.
Its portfolio is broadly diversified and moderately active, with 36.6% of the portfolio concentrated in Information Technology.
Its turnover score has fallen from 51 to 33 over the past 4 quarters — a shift toward longer holding periods.
It has added to its MSFT position over the past two quarters (+$174.7M, now $411.0M), while trimming STRL over the same stretch (-$169.4M, still holding $33.1M).
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Developer Access
Access Congress Asset Management Co's institutional profile programmatically:
REST API
curl https://alphasmo.com/api/v1/institutions/congress-asset-management-coCLI
npx alphasmo institutions get congress-asset-management-co