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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 | |
|---|---|---|---|---|---|---|
|
MCR
3401
DELISTED
MFS Charter Income Trust
MCR
| $76.4K | ﹤0.01% |
11,898
+42
| +0.4% | +$268 |
|
3402
ZipRecruiter
ZIP
$318M
| $75.2K | ﹤0.01% |
17,826
+7,299
| +69% | +$34.1K |
|
3403
Akebia Therapeutics
AKBA
$327M
| $74.4K | ﹤0.01% |
27,243
-11,083
| -29% | -$36.9K |
|
|
DHY
3404
Credit Suisse High Yield Credit Fund
DHY
$238M
| $72.7K | ﹤0.01% |
35,310
+2,005
| +6% | +$4.24K |
|
|
MMT
3405
Aberdeen Multi-Market Income Fund
MMT
$237M
| $72.5K | ﹤0.01% |
15,173
-1,912
| -11% | -$9.01K |
|
|
DSM
3406
BNY Mellon Strategic Municipal Bond Fund
DSM
$292M
| $72.2K | ﹤0.01% |
12,194
+594
| +5% | +$3.37K |
|
3407
BlackBerry
BB
$5.01B
| $71.4K | ﹤0.01% |
+14,638
| New | +$58.1K |
|
3408
Quantum-Si Incorporated
QSI
$168M
| $71.2K | ﹤0.01% |
50,529
-65
| -0.1% | -$94 |
|
|
ASRT
3409
DELISTED
Assertio
ASRT
| $70.9K | ﹤0.01% |
+5,367
| New | +$62.5K |
|
|
EWCZ
3410
DELISTED
European Wax Center
EWCZ
| $70.7K | ﹤0.01% |
17,713
+3,088
| +21% | +$14.1K |
|
3411
POET Technologies
POET
$1.19B
| $70.2K | ﹤0.01% |
12,673
+192
| +2% | +$1.08K |
|
|
PPT
3412
Franklin Premier Income Trust
PPT
$323M
| $68.1K | ﹤0.01% |
18,442
+1,278
| +7% | +$4.7K |
|
|
SLI
3413
Standard Lithium
SLI
$517M
| $67.8K | ﹤0.01% |
20,117
| – | – |
|
|
BRY
3414
DELISTED
Berry Corp
BRY
| $67.3K | ﹤0.01% |
17,813
+5,930
| +50% | +$19.2K |
|
|
MFM
3415
Aberdeen Municipal Income Fund
MFM
$222M
| $66.8K | ﹤0.01% |
12,394
+1,244
| +11% | +$6.45K |
|
|
AISP
3416
Airship AI Holdings
AISP
$69.2M
| $65.8K | ﹤0.01% |
12,720
-28
| -0.2% | -$144 |
|
3417
Broadwind
BWEN
$113M
| $64.8K | ﹤0.01% |
30,852
| – | – |
|
3418
Cerus
CERS
$587M
| $64.5K | ﹤0.01% |
40,542
-3,341
| -8% | -$4.51K |
|
|
MCN
3419
Madison Covered Call & Equity Strategy Fund
MCN
$117M
| $64.1K | ﹤0.01% |
10,381
-60
| -0.6% | -$373 |
|
|
BORR
3420
Borr Drilling
BORR
$1.31B
| $63.3K | ﹤0.01% |
23,529
+13,494
| +134% | +$33.6K |
|
|
BTM
3421
DELISTED
Bitcoin Depot
BTM
| $63.2K | ﹤0.01% |
2,685
+860
| +47% | +$26.9K |
|
3422
Tronox
TROX
$995M
| $63K | ﹤0.01% |
15,661
-35,312
| -69% | -$162K |
|
|
MAPS
3423
DELISTED
WM TECHNOLOGY INC A
MAPS
| $62.6K | ﹤0.01% |
53,941
+2,426
| +5% | +$2.62K |
|
|
GUT
3424
Gabelli Utility Trust
GUT
$576M
| $61.8K | ﹤0.01% |
10,174
-9,000
| -47% | -$54.1K |
|
|
NXDR
3425
Nextdoor Holdings
NXDR
$835M
| $61.4K | ﹤0.01% |
29,355
+9,656
| +49% | +$18.7K |
|
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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.