ADVENT CAPITAL MANAGEMENT /DE/
CIK
1097278
Location
NEW YORK, NY
Portfolio Value
Small
$300,916,192
Diversification
Highly concentrated
Filing Date
Global Rank
#3,421
/ 8,605
▼ 1152
· as of Mar 2026
Top Industry
Software - Infrastructure
11.4%
3Y Alpha vs SPY
-5.2%
Period ended 3 months ago
Filed May 7, 2026 · 2mo
25 quarters · since Mar 2020
Clone Performance
Jul 2023–Jul 2026 · vs SPYHypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.
Cloned portfolio
+55.0%
SPY
+76.5%
Annualised alpha
-5.1%
Max drawdown
−18.3%
Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.
Portfolio Concentration
36 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025Top Position
74.0%
−12.0 pts
Top 5
80.2%
−13.1 pts
Top 10
85.7%
−10.2 pts
HHI
5,507
Highly concentrated−1,916
Portfolio Trend
25 quarters · across all stocks
Sector Breakdown
As of Mar 31, 2026| Sector | % Portfolio | Value |
|---|---|---|
| Unclassified | 74.0% | $222,741,450 |
| Technology | 8.8% | $26,484,055 |
| Industrials | 5.6% | $16,735,440 |
| Consumer Cyclical | 4.1% | $12,318,230 |
| Financial Services | 3.3% | $9,970,130 |
| Communication Services | 2.2% | $6,613,795 |
| Healthcare | 1.2% | $3,555,265 |
| Real Estate | 0.8% | $2,497,827 |
Last Quarter's Activity
Export CSVTrimmed
Positions the filer reduced
6 positions
| Ticker | Company | Δ Shares | Shares | Value | Open |
|---|---|---|---|---|---|
| SPY | Spdr S&P 500 ETF Trust | −517,500 | 342,500 | $222,741,450 | |
| NCLH | Norwegian Cruise Line Holdings Ltd. | −200,000 | 100,000 | $1,870,000 | |
| ESPR | Esperion Therapeutics, Inc. | −140,000 | 50,000 | $137,000 | |
| BBAI | BigBear.ai Holdings, Inc. | −80,000 | 20,000 | $70,400 | |
| AKAM | Akamai Technologies Inc | −34,000 | 6,000 | $689,100 | |
| ETN | Eaton Corp plc | −3,000 | 10,000 | $3,576,700 | |
| No positions match the current search. | |||||
New Positions
Positions the filer opened this quarter
25 positions
| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| MSFT | Microsoft Corp | 20,000 | $7,403,400 | |
| UAL | United Airlines Holdings, Inc. | 40,000 | $3,682,800 | |
| NOW | ServiceNow, Inc. | 35,000 | $3,659,250 | |
| SPOT | Spotify Technology S.A. | 7,000 | $3,394,370 | |
| AMZN | Amazon Com Inc | 16,000 | $3,332,320 | |
| ECHO | EchoStar CORP | 27,500 | $3,219,425 | |
| MS | Morgan Stanley | 18,000 | $2,962,260 | |
| IBM | International Business Machines Corp | 12,000 | $2,908,680 | |
| GE | General Electric Co | 10,000 | $2,837,700 | |
| C | Citigroup Inc | 25,000 | $2,835,250 | |
| GLW | Corning Inc /Ny | 20,000 | $2,719,400 | |
| COMP | Compass, Inc. | 341,700 | $2,497,827 | |
| MTB | M&T Bank Corp | 12,000 | $2,480,640 | |
| STX | Seagate Technology Holdings plc | 6,000 | $2,350,560 | |
| SMCI | Super Micro Computer, Inc. | 100,000 | $2,277,000 | |
| CIFR | Cipher Digital Inc. | 172,500 | $2,220,075 | |
| CPA | Copa Holdings, S.A. | 19,000 | $2,158,590 | |
| BE | Bloom Energy Corp | 15,000 | $2,032,350 | |
| GS | Goldman Sachs Group Inc | 2,000 | $1,691,980 | |
| JOBY | Joby Aviation, Inc. | 200,000 | $1,652,000 | |
| CRWD | CrowdStrike Holdings, Inc. | 8,000 | $780,820 | |
| AAPL | Apple Inc. | 3,000 | $761,370 | |
| INDI | indie Semiconductor, Inc. | 200,000 | $644,000 | |
| PLUG | Plug Power Inc | 250,000 | $565,000 | |
| FTAI | FTAI Aviation Ltd. | 940 | $230,300 | |
| No positions match the current search. | ||||
Sold Out
Positions the filer fully exited
20 positions
| Ticker | Company | Shares | Value | Open |
|---|---|---|---|---|
| CSCO | Cisco Systems, Inc. | 400,000 | $30,812,000 | |
| HD | Home Depot, Inc. | 20,000 | $6,882,000 | |
| ORCL | Oracle Corp | 25,000 | $4,872,750 | |
| NOC | Northrop Grumman Corp /De/ | 7,000 | $3,991,470 | |
| VRT | Vertiv Holdings Co | 20,000 | $3,240,200 | |
| PNC | Pnc Financial Services Group, Inc. | 14,000 | $2,922,220 | |
| BSX | Boston Scientific Corp | 30,000 | $2,860,500 | |
| AVGO | Broadcom Inc. | 8,000 | $2,768,800 | |
| RCL | Royal Caribbean Cruises Ltd | 9,000 | $2,510,280 | |
| BABA | Alibaba Group Holding Ltd | 15,000 | $2,198,700 | |
| RIOT | Riot Platforms, Inc. | 100,000 | $1,267,000 | |
| SOFI | SoFi Technologies, Inc. | 45,000 | $1,178,100 | |
| BTDR | Bitdeer Technologies Group | 105,000 | $1,177,050 | |
| MARA | MARA Holdings, Inc. | 100,000 | $898,000 | |
| ZTS | Zoetis Inc. | 5,600 | $704,592 | |
| UNIT | Uniti Group Inc. | 100,000 | $701,000 | |
| APLS | Apellis Pharmaceuticals, Inc. | 18,000 | $452,160 | |
| WULF | Terawulf Inc. | 30,000 | $344,700 | |
| LULU | lululemon athletica inc. | 1,000 | $207,810 | |
| OPEN | Opendoor Technologies Inc. | 20,000 | $116,600 | |
| No positions match the current search. | ||||
36 positions ·
$300,916,192 total
· as of Mar 31, 2026
All sectors
Communication Services
Consumer Cyclical
Financial Services
Healthcare
Industrials
Real Estate
Technology
| Ticker | Company | Type | Shares | Value (USD) | % of Portfolio | History |
|---|---|---|---|---|---|---|
| SPY |
Spdr S&P 500 ETF Trust
|
Reduced | 342,500 | $222,741,450 | 74.02% | |
| MSFT |
Microsoft Corp
Technology
|
NEW | 20,000 | $7,403,400 | 2.46% | |
| GM |
General Motors Co
Consumer Cyclical
|
Added | 50,000 | $3,725,000 | 1.24% | |
| UAL |
United Airlines Holdings, Inc.
Industrials
|
NEW | 40,000 | $3,682,800 | 1.22% | |
| NOW |
ServiceNow, Inc.
Technology
|
NEW | 35,000 | $3,659,250 | 1.22% | |
| ETN |
Eaton Corp plc
Industrials
|
Reduced | 10,000 | $3,576,700 | 1.19% | |
| SPOT |
Spotify Technology S.A.
Communication Services
|
NEW | 7,000 | $3,394,370 | 1.13% | |
| AMZN |
Amazon Com Inc
Consumer Cyclical
|
NEW | 16,000 | $3,332,320 | 1.11% | |
| ABBV |
AbbVie Inc.
Healthcare
|
Held | 15,000 | $3,262,350 | 1.08% | |
| CCL |
Carnival Corp Ltd.
Consumer Cyclical
|
Added | 125,000 | $3,235,000 | 1.08% | |
| ECHO |
EchoStar CORP
Communication Services
|
NEW | 27,500 | $3,219,425 | 1.07% | |
| MS |
Morgan Stanley
Financial Services
|
NEW | 18,000 | $2,962,260 | 0.98% | |
| IBM |
International Business Machines Corp
Technology
|
NEW | 12,000 | $2,908,680 | 0.97% | |
| GE |
General Electric Co
Industrials
|
NEW | 10,000 | $2,837,700 | 0.94% | |
| C |
Citigroup Inc
Financial Services
|
NEW | 25,000 | $2,835,250 | 0.94% | |
| GLW |
Corning Inc /Ny
Technology
|
NEW | 20,000 | $2,719,400 | 0.90% | |
| COMP |
Compass, Inc.
Real Estate
|
NEW | 341,700 | $2,497,827 | 0.83% | |
| MTB |
M&T Bank Corp
Financial Services
|
NEW | 12,000 | $2,480,640 | 0.82% | |
| STX |
Seagate Technology Holdings plc
Technology
|
NEW | 6,000 | $2,350,560 | 0.78% | |
| SMCI |
Super Micro Computer, Inc.
Technology
|
NEW | 100,000 | $2,277,000 | 0.76% | |
| CIFR |
Cipher Digital Inc.
Technology
|
NEW | 172,500 | $2,220,075 | 0.74% | |
| CPA |
Copa Holdings, S.A.
Industrials
|
NEW | 19,000 | $2,158,590 | 0.72% | |
| BE |
Bloom Energy Corp
Industrials
|
NEW | 15,000 | $2,032,350 | 0.68% | |
| NCLH |
Norwegian Cruise Line Holdings Ltd.
Consumer Cyclical
|
Reduced | 100,000 | $1,870,000 | 0.62% | |
| GS |
Goldman Sachs Group Inc
Financial Services
|
NEW | 2,000 | $1,691,980 | 0.56% | |
| JOBY |
Joby Aviation, Inc.
Industrials
|
NEW | 200,000 | $1,652,000 | 0.55% | |
| CRWD |
CrowdStrike Holdings, Inc.
Technology
|
NEW | 8,000 | $780,820 | 0.26% | |
| AAPL |
Apple Inc.
Technology
|
NEW | 3,000 | $761,370 | 0.25% | |
| AKAM |
Akamai Technologies Inc
Technology
|
Reduced | 6,000 | $689,100 | 0.23% | |
| INDI |
indie Semiconductor, Inc.
Technology
|
NEW | 200,000 | $644,000 | 0.21% | |
| PLUG |
Plug Power Inc
Industrials
|
NEW | 250,000 | $565,000 | 0.19% | |
| FTAI |
FTAI Aviation Ltd.
Industrials
|
NEW | 940 | $230,300 | 0.08% | |
| QGEN |
Qiagen N.V.
Healthcare
|
NEW | 3,894 | $155,915 | 0.05% | |
| W |
Wayfair Inc.
Consumer Cyclical
|
NEW | 2,073 | $155,910 | 0.05% | |
| ESPR |
Esperion Therapeutics, Inc.
Healthcare
|
Reduced | 50,000 | $137,000 | 0.05% | |
| BBAI |
BigBear.ai Holdings, Inc.
Technology
|
Reduced | 20,000 | $70,400 | 0.02% |