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Mariner Portfolio holdings
AUM
$85.7B
1-Year Est. Return
24.21%
This Fund
S&P 500
This Quarter
Est. Return
+9.26%
1 Year Est. Return
+24.21%
3 Year Est. Return
+74.24%
5 Year Est. Return
+87.67%
10 Year Est. Return
+269.13%
AUM
$77.4B
AUM Growth
+$8.11B
(+12%)
Cap. Flow
+$3.32B
Cap. Flow
% of AUM
4.29%
Top 10 Holdings %
Top 10 Hldgs %
28.04%
Holding
3,806
New
339
Increased
1,836
Reduced
1,278
Closed
264
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
ProShares Ultra Semiconductors
USD
|
+$770M |
| 2 |
NVIDIA
NVDA
|
+$373M |
| 3 |
Meta Platforms (Facebook)
META
|
+$179M |
| 4 |
Teledyne Technologies
TDY
|
+$167M |
| 5 |
Apple
AAPL
|
+$155M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Take-Two Interactive
TTWO
|
+$189M |
| 2 |
lululemon athletica
LULU
|
+$80.3M |
| 3 |
iShares 0-1 Year Treasury Bond ETF
SHV
|
+$79.8M |
| 4 |
Arch Capital
ACGL
|
+$42.3M |
| 5 |
Advanced Micro Devices
AMD
|
+$38.4M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 22.54% |
| 2 | Financials | 7.9% |
| 3 | Consumer Discretionary | 5.38% |
| 4 | Communication Services | 4.83% |
| 5 | Healthcare | 4.73% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
TSE
3376
DELISTED
Trinseo
TSE
| $92.1K | ﹤0.01% |
+39,200
| New | +$102K |
|
3377
Invesco Municipal Income Opportunities Trust
OIA
$295M
| $92.1K | ﹤0.01% |
15,275
| – | – |
|
|
FOLD
3378
DELISTED
Amicus Therapeutics
FOLD
| $90.9K | ﹤0.01% |
+11,541
| New | +$82.1K |
|
3379
WhiteHorse Finance
WHF
$141M
| $89.8K | ﹤0.01% |
12,977
+536
| +4% | +$4.59K |
|
|
SHCO
3380
DELISTED
Soho House & Co
SHCO
| $88.5K | ﹤0.01% |
10,000
| – | – |
|
3381
Alvotech
ALVO
$1.03B
| $88.2K | ﹤0.01% |
10,768
-5,007
| -32% | -$42.7K |
|
|
PNNT
3382
Pennant Park Investment Corp
PNNT
$215M
| $88.1K | ﹤0.01% |
13,133
+503
| +4% | +$3.58K |
|
|
CMRC
3383
Commerce.com Inc Series 1
CMRC
$224M
| $87.9K | ﹤0.01% |
+17,615
| New | +$84.7K |
|
3384
Banco Bradesco
BBDO
$33.9B
| $87.2K | ﹤0.01% |
29,746
+941
| +3% | +$2.49K |
|
3385
Vanda Pharmaceuticals
VNDA
$312M
| $86.8K | ﹤0.01% |
+17,395
| New | +$80.5K |
|
|
LAC
3386
Lithium Americas
LAC
$986M
| $85.4K | ﹤0.01% |
14,954
+1,575
| +12% | +$4.98K |
|
|
PMM
3387
Franklin Managed Municipal Income Trust
PMM
$275M
| $84.8K | ﹤0.01% |
14,034
| – | – |
|
3388
Cognyte Software
CGNT
$612M
| $84.8K | ﹤0.01% |
10,090
-488
| -5% | -$4.32K |
|
3389
Xeris Biopharma Holdings
XERS
$1.44B
| $84.7K | ﹤0.01% |
10,404
-1,333
| -11% | -$8.86K |
|
3390
Tilray
TLRY
$479M
| $84.6K | ﹤0.01% |
4,891
+1,105
| +29% | +$10.6K |
|
|
INN
3391
Summit Hotel Properties
INN
$761M
| $84.5K | ﹤0.01% |
15,395
-2,231
| -13% | -$12.2K |
|
|
HIO
3392
Western Asset High Income Opportunity Fund
HIO
$335M
| $84.3K | ﹤0.01% |
21,952
-7,628
| -26% | -$30.3K |
|
3393
Alta Equipment Group
ALTG
$210M
| $83.9K | ﹤0.01% |
11,582
-1,645
| -12% | -$12.8K |
|
|
LNKB
3394
DELISTED
LINKBANCORP
LNKB
| $83.6K | ﹤0.01% |
+11,729
| New | +$85K |
|
3395
VinFast Auto
VFS
$6.67B
| $83.2K | ﹤0.01% |
25,846
-8,335
| -24% | -$28.6K |
|
|
MSTU
3396
T-Rex 2X Long MSTR Daily Target ETF
MSTU
$324M
| $81.2K | ﹤0.01% |
1,745
-600
| -26% | -$41.1K |
|
|
EXK
3397
Endeavour Silver
EXK
$2.32B
| $80.7K | ﹤0.01% |
10,300
-75
| -0.7% | -$443 |
|
3398
AbCellera Biologics
ABCL
$1.62B
| $79.4K | ﹤0.01% |
+15,792
| New | +$69.6K |
|
3399
Quad
QUAD
$430M
| $79.1K | ﹤0.01% |
12,642
+63
| +0.5% | +$388 |
|
3400
PSQ Holdings
PSQH
$11.2M
| $78.9K | ﹤0.01% |
2,753
+33
| +1% | +$1K |
|
Similar funds
Mariner's Q3 2025 Portfolio in Review
As of Q3 2025, Mariner held 3,806 positions worth $77.4B, up 12% from $69.3B the previous quarter. Its ten largest holdings account for 28% of the portfolio.
Mariner deployed $3.32B of net new capital in Q3 2025, opening 339 new positions and adding to 1,836 existing holdings. Its largest new stake was ProShares Ultra Semiconductors: 17,808,292 shares worth $8.97M.
By sector, the portfolio is most concentrated in Technology at 23% of assets, up from 21% a quarter earlier, followed by Financials and Consumer Discretionary.
On the sell side, the largest reduction was Take-Two Interactive, an estimated $189M trimmed.
- Mariner's largest Q3 2025 buy was ProShares Ultra Semiconductors: 17,808,292 shares worth $8.97M.
- Mariner added most to NVIDIA in Q3 2025, an estimated $373M increase.
- Mariner's biggest Q3 2025 reduction was Take-Two Interactive, cutting an estimated $189M.
- Mariner fully exited Hess in Q3 2025, selling an estimated $5.21M.
- Mariner's ten largest holdings make up 28% of its $77.4B portfolio in Q3 2025.
- Mariner opened 339 new positions and closed 264 in Q3 2025.
- Mariner's portfolio value rose 12% quarter-over-quarter to $77.4B.
Based on Mariner's 13F filing for Q3 2025, filed 14 Nov 2025.