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CSS LLC Portfolio holdings

AUM $2.09B
1-Year Est. Return 59.56%
This Fund
S&P 500
This Quarter Est. Return
+2.83%
1 Year Est. Return
+59.56%
3 Year Est. Return
+106.78%
5 Year Est. Return
+137.14%
10 Year Est. Return
+420.84%
AUM
$2.09B
AUM Growth
-$162M
Cap. Flow
-$866M
Cap. Flow %
-41.48%
Top 10 Hldgs %
32%
Holding
1,256
New
272
Increased
195
Reduced
264
Closed
296

Top Buys

Rank Stock Value
1
NEE.PRV
NextEra Energy Inc 7.375% Corporate Units
NEE.PRV
+$27M
2
APO.PRA icon
Apollo Global Management Series A
APO.PRA
+$17.2M
3
ALB.PRA icon
Albemarle Corp Depositary Shares
ALB.PRA
+$13.9M
4
PEN icon
Penumbra
PEN
+$12.2M
5
EP.PRC icon
El Paso Energy Capital Trust I
EP.PRC
+$10.3M

Top Sells

Rank Stock Value
1
BAC.PRL icon
Bank of America Series L
BAC.PRL
+$16.5M
2
SOFI icon
SoFi Technologies
SOFI
+$7.56M
3
IRHOU
Iron Horse Acquisitions II Corp Units
IRHOU
+$7.34M
4
SPY icon
State Street SPDR S&P 500 ETF Trust
SPY
+$7.24M
5
DMII
Drugs Made In America Acquisition II Corp
DMII
+$6.93M

Sector Composition

Rank Sector Weight
1 Financials 7.91%
2 Healthcare 3.17%
3 Technology 2.72%
4 Industrials 1.59%
5 Consumer Discretionary 1.35%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
PEO
101
Adams Natural Resources Fund
PEO
$737M
$2.07M 0.1%
74,495
-24,973
-25% -$632K
CNTA
102
CALL
DELISTED
Centessa Pharmaceuticals
CNTA
$2.07M 0.1%
+52,000
New +$1.33M
BDX icon
103
PUT
Becton Dickinson
BDX
$44.1B
$2.04M 0.1%
13,000
+3,100
+31% +$569K
BDCI
104
BTC Development Corp
BDCI
$350M
$2.03M 0.1%
+203,159
New +$2.04M
AVUV icon
105
Avantis US Small Cap Value ETF
AVUV
$30.3B
$1.99M 0.1%
17,989
-21,431
-54% -$2.36M
IACOU
106
Idea Acquisition Corp Units
IACOU
$1.98M 0.09%
+200,000
New +$1.98M
SMH icon
107
CALL
VanEck Semiconductor ETF
SMH
$64.7B
$1.96M 0.09%
+5,100
New +$2.03M
SVIV
108
Spring Valley Acquisition Corp IV
SVIV
$313M
$1.93M 0.09%
+195,070
New +$1.93M
NBIS
109
PUT
Nebius Group N.V.
NBIS
$46.6B
$1.92M 0.09%
18,500
+14,500
+363% +$1.45M
EA icon
110
Electronic Arts
EA
$52.4B
$1.92M 0.09%
9,400
+9,100
+3,033% +$1.84M
HOLX
111
CALL
DELISTED
Hologic
HOLX
$1.89M 0.09%
+25,000
New +$1.88M
MLAA
112
Mountain Lake Acquisition Corp II
MLAA
$1.87M 0.09%
+190,236
New +$1.87M
AL
113
DELISTED
Air Lease Corp
AL
$1.87M 0.09%
28,828
+13,594
+89% +$878K
RAAQ
114
DELISTED
Real Asset Acquisition Corp
RAAQ
$1.87M 0.09%
177,685
-209,063
-54% -$2.18M
HIMS icon
115
PUT
Hims & Hers Health
HIMS
$6.82B
$1.81M 0.09%
87,400
-12,500
-13% -$295K
GAM
116
General American Investors Company
GAM
$1.54B
$1.81M 0.09%
31,023
-2,245
-7% -$136K
APLS
117
PUT
DELISTED
Apellis Pharmaceuticals
APLS
$1.81M 0.09%
+45,000
New +$970K
DFIV icon
118
Dimensional International Value ETF
DFIV
$20.8B
$1.79M 0.09%
33,970
-6,380
-16% -$338K
PRA
119
DELISTED
ProAssurance
PRA
$1.79M 0.09%
72,317
+19,515
+37% +$476K
ASA
120
ASA Gold and Precious Metals
ASA
$954M
$1.76M 0.08%
28,384
+15,684
+123% +$1.06M
DELL icon
121
Dell
DELL
$272B
$1.75M 0.08%
10,640
-1,100
-9% -$147K
MDY icon
122
State Street SPDR S&P MIDCAP 400 ETF Trust
MDY
$26.7B
$1.73M 0.08%
2,810
+230
+9% +$146K
APLS
123
DELISTED
Apellis Pharmaceuticals
APLS
$1.72M 0.08%
+42,818
New +$923K
BP icon
124
BP
BP
$110B
$1.72M 0.08%
36,641
+17,418
+91% +$682K
COIN icon
125
PUT
Coinbase
COIN
$42.7B
$1.71M 0.08%
9,800
-700
-7% -$138K
3 4
5
6 7

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KA
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ACG
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NSUP
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IHAM
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TP
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ACM
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CSS LLC's Q1 2026 Portfolio in Review

As of Q1 2026, CSS LLC held 1,256 positions worth $2.09B, down 7.2% from $2.25B the previous quarter. Its ten largest holdings account for 32% of the portfolio.

CSS LLC withdrew a net $866M in Q1 2026, closing 296 positions and reducing 264 holdings. Its most notable exit was SoFi Technologies, an estimated $7.56M position sold in full.

By sector, the portfolio is most concentrated in Financials at 7.9% of assets, up from 6.4% a quarter earlier, followed by Healthcare and Technology.

Against the trend, CSS LLC opened a new position in NextEra Energy Inc 7.375% Corporate Units worth $27.2M.

  • CSS LLC's largest Q1 2026 buy was NextEra Energy Inc 7.375% Corporate Units: 540,739 shares worth $27.2M.
  • CSS LLC added most to Apollo Global Management Series A in Q1 2026, an estimated $17.2M increase.
  • CSS LLC's biggest Q1 2026 reduction was Bank of America Series L, cutting an estimated $16.5M.
  • CSS LLC fully exited SoFi Technologies in Q1 2026, selling an estimated $7.56M.
  • CSS LLC's ten largest holdings make up 32% of its $2.09B portfolio in Q1 2026.
  • CSS LLC opened 272 new positions and closed 296 in Q1 2026.
  • CSS LLC's portfolio value fell 7.2% quarter-over-quarter to $2.09B.

Based on CSS LLC's 13F filing for Q1 2026, filed 15 May 2026.