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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 | |
|---|---|---|---|---|---|---|
|
1
Apple
AAPL
$4.81T
| $4.18B | 5.4% |
16,414,338
+687,211
| +4% | +$155M |
|
|
2
NVIDIA
NVDA
$5.02T
| $3.95B | 5.1% |
21,145,717
+2,142,404
| +11% | +$373M |
|
3
iShares Core S&P 500 ETF
IVV
$887B
| $3.44B | 4.45% |
5,140,687
+181,656
| +4% | +$117M |
|
4
Microsoft
MSFT
$2.95T
| $2.53B | 3.26% |
4,878,198
+170,881
| +4% | +$87.2M |
|
5
Vanguard FTSE Developed Markets ETF
VEA
$228B
| $1.9B | 2.46% |
31,736,615
+1,082,109
| +4% | +$63.1M |
|
6
Broadcom
AVGO
$1.84T
| $1.28B | 1.66% |
3,882,370
+44,197
| +1% | +$13.6M |
|
7
Amazon
AMZN
$2.66T
| $1.28B | 1.65% |
5,819,266
+553,145
| +11% | +$125M |
|
8
iShares Core US Aggregate Bond ETF
AGG
$138B
| $1.08B | 1.4% |
10,816,427
+998,927
| +10% | +$99.1M |
|
9
JPMorgan Chase
JPM
$918B
| $1.04B | 1.35% |
3,304,544
+173,973
| +6% | +$51.7M |
|
10
Alphabet (Google) Class A
GOOGL
$4.24T
| $1.02B | 1.32% |
4,198,516
+102,000
| +2% | +$21.4M |
|
|
11
Meta Platforms (Facebook)
META
$1.63T
| $1.01B | 1.3% |
1,369,447
+239,931
| +21% | +$179M |
|
12
State Street SPDR S&P 500 ETF Trust
SPY
$787B
| $951M | 1.23% |
1,427,929
+42,867
| +3% | +$27.5M |
|
13
iShares Core S&P Mid-Cap ETF
IJH
$123B
| $937M | 1.21% |
14,356,821
+395,341
| +3% | +$25.4M |
|
14
Vanguard Value ETF
VTV
$187B
| $880M | 1.14% |
4,720,356
+60,509
| +1% | +$11M |
|
15
Vanguard Growth ETF
VUG
$223B
| $858M | 1.11% |
10,734,072
+13,176
| +0.1% | +$1.01M |
|
16
iShares Core MSCI EAFE ETF
IEFA
$187B
| $808M | 1.04% |
9,251,750
+268,246
| +3% | +$22.8M |
|
17
Tesla
TSLA
$1.42T
| $778M | 1.01% |
1,748,938
+296,903
| +20% | +$103M |
|
18
Vanguard FTSE Emerging Markets ETF
VWO
$121B
| $711M | 0.92% |
13,117,163
-60,293
| -0.5% | -$3.11M |
|
19
iShares Core Universal USD Bond ETF
IUSB
$42.8B
| $654M | 0.85% |
14,004,882
+1,449,320
| +12% | +$67M |
|
20
Invesco QQQ Trust
QQQ
$471B
| $635M | 0.82% |
1,056,940
-4,041
| -0.4% | -$2.31M |
|
21
Vanguard Total Stock Market ETF
VTI
$662B
| $590M | 0.76% |
1,797,872
+23,690
| +1% | +$7.48M |
|
22
Schwab US Large-Cap Growth ETF
SCHG
$60B
| $570M | 0.74% |
17,849,389
+38,809
| +0.2% | +$1.18M |
|
23
Berkshire Hathaway Class B
BRK.B
$1.06T
| $570M | 0.74% |
1,132,905
+39,229
| +4% | +$19M |
|
|
24
Alphabet (Google) Class C
GOOG
$4.22T
| $555M | 0.72% |
2,280,326
+229,898
| +11% | +$48.3M |
|
25
Vanguard Mid-Cap ETF
VO
$106B
| $539M | 0.7% |
7,344,604
+506,764
| +7% | +$36.4M |
|
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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.