Latest CASTLEARK MANAGEMENT LLC Stock Portfolio
CASTLEARK MANAGEMENT LLC Performance:
2025 Q3: 6.75%YTD: 13.3%2024: 26.31%
Performance for 2025 Q3 is 6.75%, and YTD is 13.3%, and 2024 is 26.31%.
About CASTLEARK MANAGEMENT LLC and 13F Hedge Fund Stock Holdings
CASTLEARK MANAGEMENT LLC is a hedge fund based in CHICAGO, IL. On 30-Mar-2023, the fund reported that it had an AUM (Regulated Assets under Management) of $2.8 Billions. In it's latest 13F Holdings report, CASTLEARK MANAGEMENT LLC reported an equity portfolio of $3.6 Billions as of 30 Sep, 2025.
The top stock holdings of CASTLEARK MANAGEMENT LLC are , NVDA, MSFT. The fund has invested 9% of it's portfolio in ADVISORS INNER CIRCLE FD II and 7.2% of portfolio in NVIDIA CORPORATION.
The fund managers got completely rid off TRANE TECHNOLOGIES PLC (TT), FAIR ISAAC CORP (FICO) and VERONA PHARMA PLC (VRNA) stocks. They significantly reduced their stock positions in INTUITIVE SURGICAL INC (ISRG), CELESTICA INC and PENUMBRA INC (PEN). CASTLEARK MANAGEMENT LLC opened new stock positions in BROADCOM INC (AVGO), VERTIV HOLDINGS CO (VRT) and ANALOG DEVICES INC (ADI). The fund showed a lot of confidence in some stocks as they added substantially to EATON CORP PLC (ETN), GILEAD SCIENCES INC (GILD) and NEXTRACKER INC.
The top stock holdings of CASTLEARK MANAGEMENT LLC are , NVDA, MSFT. The fund has invested 9% of it's portfolio in ADVISORS INNER CIRCLE FD II and 7.2% of portfolio in NVIDIA CORPORATION.
The fund managers got completely rid off TRANE TECHNOLOGIES PLC (TT), FAIR ISAAC CORP (FICO) and VERONA PHARMA PLC (VRNA) stocks. They significantly reduced their stock positions in INTUITIVE SURGICAL INC (ISRG), CELESTICA INC and PENUMBRA INC (PEN). CASTLEARK MANAGEMENT LLC opened new stock positions in BROADCOM INC (AVGO), VERTIV HOLDINGS CO (VRT) and ANALOG DEVICES INC (ADI). The fund showed a lot of confidence in some stocks as they added substantially to EATON CORP PLC (ETN), GILEAD SCIENCES INC (GILD) and NEXTRACKER INC.
CASTLEARK MANAGEMENT LLC Annual Return Estimates Vs S&P 500
Our best estimate is that CASTLEARK MANAGEMENT LLC made a return of 6.75% in the last quarter. In trailing 12 months, it's portfolio return was 17.34%.
New Buys
| Ticker | $ Bought |
|---|---|
| broadcom inc | 67,923,800 |
| vertiv holdings co | 18,435,200 |
| analog devices inc | 14,613,300 |
| oracle corp | 14,399,500 |
| delta air lines inc del | 13,023,600 |
| ligand pharmaceuticals inc | 11,456,700 |
| pnc finl svcs group inc | 9,692,860 |
| piper sandler companies | 9,662,280 |
New stocks bought by CASTLEARK MANAGEMENT LLC
Additions
| Ticker | % Inc. |
|---|---|
| eaton corp plc | 16,458 |
| gilead sciences inc | 2,545 |
| nextracker inc | 2,333 |
| bloom energy corp | 2,179 |
| marathon pete corp | 1,878 |
| fastenal co | 1,776 |
| axon enterprise inc | 1,751 |
| home depot inc | 1,520 |
Additions to existing portfolio by CASTLEARK MANAGEMENT LLC
Reductions
| Ticker | % Reduced |
|---|---|
| intuitive surgical inc | -98.69 |
| celestica inc | -97.62 |
| penumbra inc | -92.98 |
| corcept therapeutics inc | -92.58 |
| carpenter technology corp | -91.74 |
| manhattan associates inc | -90.42 |
| philip morris intl inc | -85.24 |
| core scientific inc new | -78.99 |
CASTLEARK MANAGEMENT LLC reduced stake in above stock
Sold off
| Ticker | $ Sold |
|---|---|
| o-i glass inc | -4,941,730 |
| avepoint inc | -6,102,350 |
| alkami technology inc | -7,970,220 |
| universal technical inst inc | -6,931,180 |
| life time group holdings inc | -5,869,760 |
| waystar hldg corp | -7,217,440 |
| paymentus holdings inc | -5,463,680 |
| kyndryl hldgs inc | -6,552,890 |
CASTLEARK MANAGEMENT LLC got rid off the above stocks
Sector Distribution
CASTLEARK MANAGEMENT LLC has about 29.7% of it's holdings in Technology sector.
| Sector | % |
|---|---|
| Technology | 29.7 |
| Others | 25.6 |
| Financial Services | 9.3 |
| Industrials | 9 |
| Communication Services | 7.9 |
| Consumer Cyclical | 6 |
| Healthcare | 4.4 |
| Energy | 3.1 |
| Utilities | 2.8 |
| Consumer Defensive | 1.2 |
Market Cap. Distribution
CASTLEARK MANAGEMENT LLC has about 54.6% of it's portfolio invested in the large-cap and mega-cap stocks.
| Category | % |
|---|---|
| MEGA-CAP | 33 |
| UNALLOCATED | 25.6 |
| LARGE-CAP | 21.6 |
| MID-CAP | 13.3 |
| SMALL-CAP | 5.8 |
Stocks belong to which Index?
About 63.7% of the stocks held by CASTLEARK MANAGEMENT LLC either belong to S&P 500 or RUSSELL 2000 index.
| Index | % |
|---|---|
| S&P 500 | 50.2 |
| Others | 36.3 |
| RUSSELL 2000 | 13.5 |
CASTLEARK MANAGEMENT LLC Holdings Map
This heatmap illustrates the top 50 positions within the fund's portfolio.
Current Stock Holdings of CASTLEARK MANAGEMENT LLC
CASTLEARK MANAGEMENT LLC has 284 stocks in it's portfolio. About 38.9% of the portfolio is in top 10 stocks. NFLX proved to be the most loss making stock for the portfolio. NVDA was the most profitable stock for CASTLEARK MANAGEMENT LLC last quarter.
Last Reported on: 17 Nov, 2025| Ticker | Namesorted ascending | % Portfolio | Shares Held | $ Value | Type | % Change | Options | |
|---|---|---|---|---|---|---|---|---|
| AAOI | applied optoelectronics inc | 0.09 | 125,379 | 3,251,080 | new | |||
| AAP | advance auto parts inc | 0.12 | 70,705 | 4,341,290 | new | |||
| AAPL | apple inc | 2.71 | 380,021 | 96,764,700 | reduced | -3.36 | ||
| AAXJ | ishares tr | 0.75 | 258,432 | 26,615,900 | unchanged | 0.00 | ||
| AAXJ | ishares tr | 0.52 | 196,905 | 18,735,500 | unchanged | 0.00 | ||
| AAXJ | ishares tr | 0.39 | 259,994 | 14,063,100 | unchanged | 0.00 | ||
| AAXJ | ishares tr | 0.10 | 19,520 | 3,452,700 | new | |||
| AAXJ | ishares tr | 0.00 | 0.00 | 0.00 | sold off | -100 | ||
| ADI | analog devices inc | 0.41 | 59,476 | 14,613,300 | new | |||
| ADPT | adaptive biotechnologies cor | 0.12 | 298,074 | 4,459,190 | new | |||
| AEIS | advanced energy inds | 0.23 | 47,713 | 8,117,890 | added | 3.97 | ||
| AGCO | agco corp | 0.17 | 56,415 | 6,040,350 | added | 110 | ||
| AIR | aar corp | 0.21 | 84,194 | 7,549,680 | new | |||
| AIT | applied indl technologies in | 0.00 | 0.00 | 0.00 | sold off | -100 | ||
| ALGM | allegro microsystems inc | 0.11 | 133,508 | 3,898,430 | added | 29.42 | ||
| ALK | alaska air group inc | 0.14 | 97,153 | 4,836,280 | new | |||
| ALKT | alkami technology inc | 0.00 | 0.00 | 0.00 | sold off | -100 | ||
| AM | antero midstream corp | 0.03 | 52,160 | 1,013,990 | unchanged | 0.00 | ||
| AMPS | ishares tr | 2.11 | 3,258,100 | 75,327,200 | unchanged | 0.00 | ||
| AMSC | american superconductor corp | 0.23 | 135,617 | 8,054,290 | added | 24.23 | ||