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CSS LLC

SEC CIK
0001103646
Latest filing
Aug 14, 2026

Holdings changes from Q1 2026 to Q2 2026

Long positions only; new, added, reduced and sold out are based on share counts. Pick any two quarters this institution filed.

Choose two quarters to compare

New
208
Est. +$417.9M
Added
170
Est. +$365.4M
Reduced
179
Est. −$79.3M
Sold out
181
Est. −$356.5M

Portfolio value went from $1.80B to $2.25B (+$449.7M (+25.0%)); positions from 739 to 766 (+27).

All Q2 2026 holdingsAll Q1 2026 holdings

In the shares, value and % of portfolio columns, the top figure is Q2 2026 and the gray one below is Q1 2026. For stocks that split between the two quarters, Q1 2026 shares are converted at the split ratio before comparing.

Holdings of CSS LLC in Q1 2026 and Q2 2026 compared
SecurityActionSharesShare changeValueEst. bought or sold% of portfolioWeight change (pp)
Lumentum Hldgs Inc55024UAF6–––––$245.6M$216.5M–10.9%12.0%−1.12
HPE.PCHewlett Packard Enterprise CoAddedHistory1,276,322114,501+1,161,821+1,014.7%$149.3M$7.46M+$135.9M6.6%0.4%+6.23
EchoStar CORP278768AB2–––––$137.4M$146.6M–6.1%8.2%−2.04
Apollo Global Mgmt Inc03769M304Added–1,361,499277,318+1,084,181+391.0%$82.8M$16.3M+$65.9M3.7%0.9%+2.78
Bank of Amer Corp060505682Added–50,37210,314+40,058+388.4%$63.3M$12.3M+$50.3M2.8%0.7%+2.13
Wolfspeed, Inc.977852AP7–––––$54.2M$13.5M–2.4%0.8%+1.66
SMCIPSuper Micro Computer, Inc.NewHistory878,2270+878,227$45.3M$0+$45.3M2.0%0.0%+2.01
CORZWCore Scientific, Inc.AddedHistory2,351,4922,083,119+268,373+12.9%$44.2M$18.2M+$5.05M2.0%1.0%+0.95
MCHPPMicrochip Technology IncNewHistory558,5520+558,552$43.0M$0+$43.0M1.9%0.0%+1.91
Cloudflare, Inc.18915MAC1–––––$33.5M$15.7M–1.5%0.9%+0.62
Akamai Technologies Inc00971TAN1–––––$29.6M$17.9M–1.3%1.0%+0.32
ALB.PAAlbemarle CorpAddedHistory470,583250,421+220,162+87.9%$26.1M$17.9M+$12.2M1.2%1.0%+0.16
Centerpoint Energy Inc15189TBD8–––––$25.3M$24.9M–1.1%1.4%−0.26
Equinox Gold Corp.29446YAC0–––––$25.1M$19.1M–1.1%1.1%+0.05
BA.PABoeing CoNewHistory349,3540+349,354$23.6M$0+$23.6M1.1%0.0%+1.05
Transocean Ltd.893830BW8–––––$23.5M$49.5M–1.0%2.8%−1.71
EP.PCKinder Morgan, Inc.AddedHistory446,461226,704+219,757+96.9%$22.6M$11.6M+$11.1M1.0%0.6%+0.36
Invesco Exchange Traded FD T46137V357Added–104,072103,482+590+0.6%$22.1M$19.9M+$125.5K1.0%1.1%−0.12
Vanguard S&P 500 ETF922908363Unchanged–32,21032,21000.0%$22.1M$19.2M$01.0%1.1%−0.09
IREN Ltd46270CAD1New––0–$21.2M$0+$21.2M0.9%0.0%+0.94
Digitalocean Hldgs Inc25402DAB8New––0–$19.5M$0+$19.5M0.9%0.0%+0.87
PTC Therapeutics, Inc.69366JAD3–––––$18.6M$3.84M–0.8%0.2%+0.62
Snowflake Inc.833445AD1–––––$16.5M$15.9M–0.7%0.9%−0.15
WDCWestern Digital CorpReducedHistory24,93325,433−500−2.0%$15.9M$6.88M−$319.4K0.7%0.4%+0.33
GameStop Corp.36467WAG4New––0–$15.2M$0+$15.2M0.7%0.0%+0.68
IAUiShares Gold TrustUnchangedHistory200,040200,04000.0%$15.1M$17.6M$00.7%1.0%−0.31
KIM.PNKimco Realty CorpAddedHistory237,147237,114+330.0%$15.0M$14.2M+$2.09K0.7%0.8%−0.12
GOOGNAlphabet Inc.NewHistory266,5890+266,589$13.4M$0+$13.4M0.6%0.0%+0.60
SPYSPDR S&P 500 ETF TrustNewHistory17,2690+17,269$12.9M$0+$12.9M0.6%0.0%+0.57
PENPenumbra IncAddedHistory38,74036,140+2,600+7.2%$12.2M$11.9M+$821.0K0.5%0.7%−0.12
IONSIonis Pharmaceuticals IncAddedHistory152,28979,093+73,196+92.5%$12.1M$5.94M+$5.80M0.5%0.3%+0.21
BridgeBio Pharma, Inc.10806XAJ1–––––$12.1M$17.1M–0.5%1.0%−0.42
Celcuity Inc.15102KAA8–––––$11.9M$15.4M–0.5%0.9%−0.33
Haemonetics Corp Mass405024AD2–––––$11.6M$116.0K–0.5%<0.1%+0.51
Guardant Health, Inc.40131MAD1–––––$11.3M$11.8M–0.5%0.7%−0.15
MARA Holdings, Inc.565788AD8–––––$11.1M$14.0M–0.5%0.8%−0.29
Brookdale Sr Living Inc112463AC8–––––$11.0M$9.54M–0.5%0.5%−0.04
Alnylam Pharmaceuticals, Inc.02043QAB3–––––$10.9M$23.9M–0.5%1.3%−0.84
TransMedics Group, Inc.89377MAB5New––0–$10.9M$0+$10.9M0.5%0.0%+0.48
On Semiconductor Corp682189AU9–––––$10.4M$43.1K–0.5%<0.1%+0.46
OHACOceanhawk Acquisition Corp.NewHistory1,038,6100+1,038,610$10.3M$0+$10.3M0.5%0.0%+0.46
PPL Cap FDG Inc69352PAS2–––––$10.2M$3.49M–0.5%0.2%+0.26
Futurecorp Space AcquisitionG37307124New–1,000,0000+1,000,000$10.1M$0+$10.1M0.5%0.0%+0.45
MARA Holdings, Inc.565788AF3–––––$9.53M$11.5M–0.4%0.6%−0.22
Guardant Health, Inc.40131MAB5New––0–$9.40M$0+$9.40M0.4%0.0%+0.42
GTLSChart Industries IncAddedHistory44,92410,500+34,424+327.8%$9.39M$2.17M+$7.19M0.4%0.1%+0.30
Beyond Meat, Inc.08862EAD1–––––$9.33M$10.7M–0.4%0.6%−0.18
JHGJanus Henderson Group Ltd.AddedHistory176,57515,881+160,694+1,011.9%$9.18M$815.8K+$8.36M0.4%<0.1%+0.36
SPE.PCSpecial Opportunities Fund, Inc.AddedHistory362,349344,986+17,363+5.0%$8.99M$8.55M+$430.6K0.4%0.5%−0.08
Lyft, Inc.55087PAD6–––––$8.93M$7.31M–0.4%0.4%−0.01
STEWSRH Total Return Fund, Inc.UnchangedHistory461,965461,96500.0%$8.27M$7.90M$00.4%0.4%−0.07
NEE.PVNextera Energy IncReducedHistory172,063540,739−368,676−68.2%$8.24M$27.2M−$17.7M0.4%1.5%−1.15
Integer Hldgs Corp45826HAD1–––––$7.76M$3.77M–0.3%0.2%+0.14
TACHTitan Acquisition Corp.UnchangedHistory708,268708,26800.0%$7.37M$7.29M$00.3%0.4%−0.08
Green Plains Inc.393222AM6–––––$7.12M$7.41M–0.3%0.4%−0.10
Peabody Engr Corp704551AD2–––––$7.02M$37.8M–0.3%2.1%−1.79
JAZZJazz Pharmaceuticals plcNewHistory29,0410+29,041$7.00M$0+$7.00M0.3%0.0%+0.31
EVACEQV Ventures Acquisition Corp. IIAddedHistory673,659118,944+554,715+466.4%$6.86M$1.20M+$5.65M0.3%0.1%+0.24
WENNWEN Acquisition CorpUnchangedHistory647,631647,63100.0%$6.66M$6.59M$00.3%0.4%−0.07
GOOGMAlphabet Inc.NewHistory125,2000+125,200$6.34M$0+$6.34M0.3%0.0%+0.28
Litman Gregory FDS Tr53700T827Unchanged–205,764205,76400.0%$6.30M$6.20M$00.3%0.3%−0.06
Strategy Inc594972AU5–––––$6.21M$6.12M–0.3%0.3%−0.06
SWZTotal Return Securities FundAddedHistory1,040,1901,020,547+19,643+1.9%$6.18M$6.05M+$116.7K0.3%0.3%−0.06
CUBLionheart HoldingsNewHistory507,5890+507,589$5.47M$0+$5.47M0.2%0.0%+0.24
AZULAzul SANewHistory597,8060+597,806$5.37M$0+$5.37M0.2%0.0%+0.24
TRGSTRG Latin America Acquisitions Corp.NewHistory532,9490+532,949$5.27M$0+$5.27M0.2%0.0%+0.23
BEBloom Energy CorpAddedHistory17,19717,097+100+0.6%$5.21M$2.32M+$30.3K0.2%0.1%+0.10
NEE.PSNextera Energy IncAddedHistory97,16548,477+48,688+100.4%$5.19M$2.73M+$2.60M0.2%0.2%+0.08
Alibaba Group Hldg Ltd01609WBG6–––––$5.14M$3.46M–0.2%0.2%+0.04
SILASila Realty Trust, Inc.NewHistory169,3200+169,320$5.14M$0+$5.14M0.2%0.0%+0.23
AACIUArmada Acquisition Corp. IIIReducedHistory499,959500,000−410.0%$5.04M$4.98M−$413.280.2%0.3%−0.05
FOUR.PAShift4 Payments, Inc.ReducedHistory81,13782,046−909−1.1%$5.04M$4.49M−$56.4K0.2%0.2%−0.03
Simplify Exchange Traded Fun82889N699Unchanged–193,879193,87900.0%$5.03M$5.86M$00.2%0.3%−0.10
MTSIMACOM Technology Solutions Holdings, Inc.AddedHistory13,14811,248+1,900+16.9%$5.00M$2.50M+$722.7K0.2%0.1%+0.08
EAElectronic Arts Inc.AddedHistory24,2819,400+14,881+158.3%$4.98M$1.92M+$3.05M0.2%0.1%+0.11
ARTCArt Technology Acquisition Corp.AddedHistory487,76391,500+396,263+433.1%$4.84M$897.6K+$3.93M0.2%<0.1%+0.17
LKSPLake Superior Acquisition CorpUnchangedHistory465,598465,59800.0%$4.72M$4.68M$00.2%0.3%−0.05
IPCXInflection Point Acquisition Corp. IIIUnchangedHistory454,422454,42200.0%$4.69M$4.64M$00.2%0.3%−0.05
BRWSaba Capital Income & Opportunities FundReducedHistory686,484708,242−21,758−3.1%$4.51M$4.77M−$143.0K0.2%0.3%−0.06
KEYYKeystone Acquisition Corp.NewHistory451,5080+451,508$4.45M$0+$4.45M0.2%0.0%+0.20
DBRGDigitalBridge Group, Inc.AddedHistory273,096262,248+10,848+4.1%$4.31M$4.04M+$171.2K0.2%0.2%−0.03
Viridian Therapeutics Inc92790CAB0New––0–$4.30M$0+$4.30M0.2%0.0%+0.19
LLYVALiberty Live Holdings, Inc.UnchangedHistory41,75541,75500.0%$4.23M$3.83M$00.2%0.2%−0.02
DAAQDigital Asset Acquisition Corp.AddedHistory405,083368,581+36,502+9.9%$4.20M$3.77M+$378.9K0.2%0.2%−0.02
American Centy ETF Tr025072372Unchanged–62,97362,97300.0%$4.13M$3.78M$00.2%0.2%−0.03
Five9, Inc.338307AF8–––––$4.13M$2.17M–0.2%0.1%+0.06
PureCycle Technologies, Inc.74623VAD5New––0–$4.09M$0+$4.09M0.2%0.0%+0.18
Xerox Holdings Corp98421MAE6–––––$4.04M$1.11M–0.2%0.1%+0.12
ORCL.PDOracle CorpAddedHistory88,21067,601+20,609+30.5%$3.96M$3.09M+$925.8K0.2%0.2%0.00
MESHMeshflow Acquisition CorpReducedHistory395,826396,547−721−0.2%$3.96M$3.92M−$7.22K0.2%0.2%−0.04
IMXIInternational Money Express, Inc.AddedHistory268,68070,947+197,733+278.7%$3.88M$1.12M+$2.86M0.2%0.1%+0.11
Wayfair Inc.94419LAP6New––0–$3.82M$0+$3.82M0.2%0.0%+0.17
Cheesecake Factory Inc163072AC5–––––$3.82M$13.4M–0.2%0.7%−0.58
MXEMexico Equity & Income Fund IncReducedHistory291,255291,997−742−0.3%$3.79M$3.77M−$9.65K0.2%0.2%−0.04
CAESCantor Equity Partners VII, Inc.NewHistory375,0000+375,000$3.78M$0+$3.78M0.2%0.0%+0.17
iShares Tr46435G409Unchanged–90,27090,27000.0%$3.78M$3.58M$00.2%0.2%−0.03
Uber Technologies, Inc90353TAS9New––0–$3.72M$0+$3.72M0.2%0.0%+0.17
IPFXInflection Point Acquisition Corp. VINewHistory355,6460+355,646$3.68M$0+$3.68M0.2%0.0%+0.16
Joby Aviation, Inc.47775AAA9–––––$3.64M$4.30M–0.2%0.2%−0.08
Dimensional ETF Trust25434V815Reduced–93,16099,860−6,700−6.7%$3.61M$3.50M−$259.9K0.2%0.2%−0.03

Estimated amounts multiply the change in shares by the quarter-end price implied by the filing (market value divided by shares): new positions use this quarter's value and sold-out positions last quarter's; positions reported only as principal (PRN) cannot be estimated. 13F shows only quarter-end holdings, not when trades happened or at what price.