CSS LLC/IL

CIK

1103646

Location

CHICAGO, IL

Portfolio Value

Small $745,664,787

Diversification

Diversified

Filing Date

Global Rank

#2,084 / 8,603 ▼ 43 · as of Mar 2026

Top Industry

Shell Companies 14.4%

3Y Alpha vs SPY

-10.1%

Period ended 3 months ago

Filed May 15, 2026 · 55d

25 quarters · since Mar 2020

Clone Performance

Jul 2023–Jul 2026 · vs SPY

Hypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.

Cloned portfolio

+31.4%

SPY

+76.0%

Annualised alpha

-11.2%

Max drawdown

−21.8%

Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.

Portfolio Concentration

544 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025

Top Position

3.8%

−5.9 pts

Top 5

15.6%

−9.6 pts

Top 10

23.3%

−10.3 pts

HHI

Diversified−105

Portfolio Trend

25 quarters · across all stocks

Sector Breakdown

As of Mar 31, 2026

Sector	% Portfolio	Value	Positions
Financial Services	28.4%	$211,689,024	152
Healthcare	15.6%	$116,335,422	63
Technology	15.0%	$112,005,016	89
Unclassified	10.6%	$78,881,742	13
Consumer Cyclical	9.3%	$69,563,970	54
Industrials	6.6%	$49,582,671	52
Communication Services	4.6%	$34,528,464	27
Energy	3.9%	$29,161,712	30
Consumer Defensive	2.1%	$15,906,475	21
Utilities	1.6%	$11,610,030	14
Real Estate	1.1%	$8,574,600	16
Basic Materials	1.0%	$7,825,661	13

Last Quarter's Activity

Export CSV

Mar 31, 2026 vs Dec 31, 2025

Added To

Positions the filer increased

25 positions

Ticker	Company	Δ Shares	Shares	Value
AMC	Amc Entertainment Holdings, Inc.	+462,300	1,308,600	$1,282,428
DAAQ	Digital Asset Acquisition Corp.	+349,581	368,581	$3,774,269
HOLX	HOLOGIC INC	+271,995	312,268	$23,604,338
PTON	Peloton Interactive, Inc.	+128,800	143,500	$615,615
SM	SM Energy Co	+95,863	106,107	$3,308,416
CTLP	Cantaloupe, Inc.	+94,094	237,405	$2,566,348
CIFR	Cipher Digital Inc.	+81,650	172,150	$2,215,570
PCAP	ProCap Acquisition Corp	+65,968	107,779	$1,098,268
UDMY	Udemy, Inc.	+48,000	63,000	$291,060
SABA	Saba Capital Income & Opportunities Fund II	+45,499	171,108	$1,423,618
SMCI	Super Micro Computer, Inc.	+42,900	146,400	$3,333,528
CAF	Morgan Stanley China A Share Fund, Inc.	+38,967	78,932	$1,381,310
ADT	ADT Inc.	+36,510	202,650	$1,331,410
HPQ	Hp Inc	+34,990	88,775	$1,705,367
AI	C3.ai, Inc.	+32,600	62,600	$527,092
IMXI	International Money Express, Inc.	+31,317	88,447	$1,397,462
BSL	Blackstone Senior Floating Rate 2027 Term Fund	+30,551	64,977	$841,452
AL	SUMISHO AIR LEASE CORP	+29,494	45,828	$2,976,070
OGN	Organon & Co.	+28,140	45,433	$272,143
JOBY	Joby Aviation, Inc.	+28,100	62,200	$513,772
PRA	Proassurance Corp	+26,115	78,917	$1,950,828
BHF	Brighthouse Financial, Inc.	+26,085	51,585	$3,088,909
HIMS	Hims & Hers Health, Inc.	+25,116	125,016	$2,595,332
MTDR	Matador Resources Co	+23,390	35,201	$2,223,999
CNC	Centene Corp	+22,573	51,865	$1,698,060
No positions match the current search.

Trimmed

Positions the filer reduced

25 positions

Ticker	Company	Δ Shares	Shares	Value
SOFI	SoFi Technologies, Inc.	−889,463	18,000	$285,840
DMII	Drugs Made In America Acquisition II Corp.	−695,959	110,042	$1,097,118
SWZ	Total Return Securities Fund	−638,460	1,020,547	$6,051,843
AAL	American Airlines Group Inc.	−629,600	582,300	$6,253,902
PLUG	Plug Power Inc	−501,300	536,400	$1,212,264
NIO	NIO Inc.	−367,200	760,000	$4,582,800
KDK	Kodiak AI, Inc.	−255,368	64,632	$448,546
GME	GameStop Corp.	−247,000	1,222,360	$28,163,174
RAAQ	Real Asset Acquisition Corp.	−209,063	177,685	$1,865,692
RKLB	Rocket Lab Corp	−203,700	7,027	$451,273
DYOR	Insight Digital Partners II	−188,390	61,610	$613,327
MSTR	Strategy Inc	−167,800	114,600	$14,302,080
RIVN	Rivian Automotive, Inc. / DE	−156,100	204,000	$3,070,200
AUR	Aurora Innovation, Inc.	−127,685	17,421	$71,774
HTZ	Hertz Global Holdings, Inc	−124,600	146,600	$675,826
SPY	Spdr S&P 500 ETF Trust	−89,346	26,500	$17,234,010
CCRN	Cross Country Healthcare Inc	−80,780	97,086	$912,608
XRX	Xerox Holdings Corp	−76,500	20,400	$26,316
QS	QuantumScape Corp	−66,900	115,700	$738,166
SOUN	Soundhound Ai, Inc.	−65,000	45,000	$309,150
CLSK	Cleanspark, Inc.	−61,200	37,900	$322,529
CEPV	Cantor Equity Partners V, Inc.	−51,145	133,548	$1,348,834
RIG	Transocean Ltd.	−50,000	24,000	$159,120
CEPF	Cantor Equity Partners IV, Inc.	−49,220	71,901	$732,671
QBTS	D-Wave Quantum Inc.	−45,300	12,100	$174,603
No positions match the current search.

New Positions

Positions the filer opened this quarter

25 positions

Ticker	Company	Shares	Value
PEN	Penumbra Inc	74,240	$24,378,188
MASI	Masimo Corp	54,000	$9,604,980
DBRG	DigitalBridge Group, Inc.	569,448	$8,780,888
IRHO	Iron Horse Acquisition II Corp.	737,555	$7,272,292
IONS	Ionis Pharmaceuticals Inc	81,093	$6,089,273
FOUR	Shift4 Payments, Inc.	128,927	$5,637,977
APLS	Apellis Pharmaceuticals, Inc.	127,118	$5,113,957
MESH	Meshflow Acquisition Corp	396,547	$3,921,849
BCSS	Bain Capital GSS Investment Corp.	387,390	$3,917,287
PTOR	Praetorian Acquisition Corp.	397,053	$3,891,119
NVDA	Nvidia Corp	20,100	$3,505,440
CNTA	Centessa Pharmaceuticals plc	78,900	$3,133,908
SEMR	SEMrush Holdings, Inc.	239,600	$2,860,824
CWAN	Clearwater Analytics Holdings, Inc.	118,162	$2,794,531
MEVO	M Evo Global Acquisition Corp II	261,390	$2,574,691
XCBE	X3 Acquisition Corp. Ltd.	250,000	$2,460,000
DBCA	D. Boral Acquisition I Corp.	248,000	$2,445,280
DVN	Devon Energy Corp/De	40,506	$2,038,261
BDCI	BTC Development Corp.	203,159	$2,029,558
SVIV	Spring Valley Acquisition Corp. IV	195,070	$1,925,340
MLAA	Mountain Lake Acquisition Corp. II	190,236	$1,873,824
ETN	Eaton Corp plc	5,190	$1,856,307
OS	OneStream, Inc.	71,108	$1,706,592
HVMC	Highview Merger Corp.	167,374	$1,682,108
ALF	Centurion Acquisition Corp.	150,681	$1,621,327
No positions match the current search.

Sold Out

Positions the filer fully exited

25 positions

Ticker	Company	Shares	Value
PSKY	Paramount Skydance Corp	652,379	$8,741,878
SMTC	Semtech Corp	53,535	$3,944,994
NEE	Nextera Energy Inc	38,995	$3,130,518
AXON	Axon Enterprise, Inc.	5,053	$2,869,750
MP	MP Materials Corp. / DE	53,783	$2,717,117
ASTS	AST SpaceMobile, Inc.	33,153	$2,407,902
EXAS	EXACT SCIENCES CORP	21,946	$2,228,835
AAPL	Apple Inc.	7,560	$2,055,261
WELL	Welltower Inc.	10,000	$1,856,100
USFD	US Foods Holding Corp.	17,362	$1,307,705
EQX	Equinox Gold Corp.	91,800	$1,288,872
FHI	Federated Hermes, Inc.	24,470	$1,274,152
CSIQ	Canadian Solar Inc.	53,037	$1,260,689
BNTX	BioNTech SE	12,161	$1,157,727
OZK	Bank OZK	23,327	$1,073,508
VEEV	Veeva Systems Inc	4,670	$1,042,484
AMZN	Amazon Com Inc	4,499	$1,038,459
HIG	Hartford Insurance Group, Inc.	7,499	$1,033,362
MO	Altria Group, Inc.	17,489	$1,008,415
SO	Southern Co	11,156	$972,803
SHOP	Shopify Inc.	6,000	$965,820
LUNR	Intuitive Machines, Inc.	58,218	$944,878
GOOGL	Alphabet Inc.	2,730	$854,490
PWR	Quanta Services, Inc.	2,000	$844,120
NTNX	Nutanix, Inc.	13,870	$716,940
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

544 positions · $745,664,787 total · as of Mar 31, 2026

All sectors Basic Materials Communication Services Consumer Cyclical Consumer Defensive Energy Financial Services Healthcare Industrials Real Estate Technology Utilities

Showing 1–50 of 544 positions by value · page 1 of 11

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
GME	GameStop Corp. Consumer Cyclical	Reduced	1,222,360	-247,000	$28,163,174	−4.5%	3.78%
PEN	Penumbra Inc Healthcare	NEW	74,240	NEW	$24,378,188	NEW	3.27%
HOLX	HOLOGIC INC Healthcare	Added	312,268	+271,995	$23,604,338	+686.8%	3.17%
GLD	Spdr Gold Trust	Reduced	52,123	-22,107	$22,428,005	−23.8%	3.01%
IAU	Ishares Gold Trust	Added	200,040	+2,780	$17,635,526	+10.1%	2.37%
SPY	Spdr S&P 500 ETF Trust	Reduced	26,500	-89,346	$17,234,010	−78.2%	2.31%
MSTR	Strategy Inc Technology	Reduced	114,600	-167,800	$14,302,080	−66.7%	1.92%
MASI	Masimo Corp Healthcare	NEW	54,000	NEW	$9,604,980	NEW	1.29%
DBRG	DigitalBridge Group, Inc. Financial Services	NEW	569,448	NEW	$8,780,888	NEW	1.18%
STEW	SRH Total Return Fund, Inc. Financial Services	Held	461,965	0	$7,899,601	−7.8%	1.06%
TACH	Titan Acquisition Corp. Financial Services	Held	708,268	0	$7,288,077	+0.4%	0.98%
IRHO	Iron Horse Acquisition II Corp. Financial Services	NEW	737,555	NEW	$7,272,292	NEW	0.98%
WDC	Western Digital Corp Technology	Reduced	25,433	-14,390	$6,879,372	+0.3%	0.92%
AAL	American Airlines Group Inc. Industrials	Reduced	582,300	-629,600	$6,253,902	−66.3%	0.84%
IONS	Ionis Pharmaceuticals Inc Healthcare	NEW	81,093	NEW	$6,089,273	NEW	0.82%
SWZ	Total Return Securities Fund	Reduced	1,020,547	-638,460	$6,051,843	−41.4%	0.81%
FOUR	Shift4 Payments, Inc. Technology	NEW	128,927	NEW	$5,637,977	NEW	0.76%
ECHO	EchoStar CORP Communication Services	Reduced	47,200	-38,000	$5,525,704	−40.3%	0.74%
APLS	Apellis Pharmaceuticals, Inc. Healthcare	NEW	127,118	NEW	$5,113,957	NEW	0.69%
EA	Electronic Arts Inc. Communication Services	Added	24,800	+13,100	$5,055,976	+111.5%	0.68%
BRW	Saba Capital Income & Opportunities Fund Financial Services	Reduced	708,242	-31,062	$4,773,551	−7.9%	0.64%
LKSP	Lake Superior Acquisition Corp Financial Services	Reduced	465,598	-217	$4,679,259	+1.3%	0.63%
IPCX	Inflection Point Acquisition Corp. III Financial Services	Held	454,422	0	$4,641,920	+0.7%	0.62%
NIO	NIO Inc. Consumer Cyclical	Reduced	760,000	-367,200	$4,582,800	−20.3%	0.61%
MSFT	Microsoft Corp Technology	Added	11,910	+7,680	$4,408,724	+115.5%	0.59%
RSF	RiverNorth Capital & Income Fund, Inc. Financial Services	Reduced	280,459	-14,421	$4,080,678	−3.6%	0.55%
IBIT	iShares Bitcoin Trust ETF	Reduced	104,811	-7,423	$4,026,838	−27.7%	0.54%
MESH	Meshflow Acquisition Corp Financial Services	NEW	396,547	NEW	$3,921,849	NEW	0.53%
BCSS	Bain Capital GSS Investment Corp. Financial Services	NEW	387,390	NEW	$3,917,287	NEW	0.53%
PTOR	Praetorian Acquisition Corp. Financial Services	NEW	397,053	NEW	$3,891,119	NEW	0.52%
LLYVA	Liberty Live Holdings, Inc. Communication Services	Held	41,755	0	$3,826,428	+12.4%	0.51%
DAAQ	Digital Asset Acquisition Corp. Financial Services	Added	368,581	+349,581	$3,774,269	+1855.2%	0.51%
MXE	Mexico Equity & Income Fund Inc Financial Services	Reduced	291,997	-373,161	$3,766,761	−54.3%	0.51%
TACO	Berto Acquisition Corp. Financial Services	Held	364,881	0	$3,740,030	+1.1%	0.50%
FGMC	FG Merger II Corp. Financial Services	Held	352,136	0	$3,556,573	+0.6%	0.48%
RDAG	Republic Digital Acquisition Co Financial Services	Held	345,952	0	$3,539,088	+1.0%	0.47%
NVDA	Nvidia Corp Technology	NEW	20,100	NEW	$3,505,440	NEW	0.47%
SMCI	Super Micro Computer, Inc. Technology	Added	146,400	+42,900	$3,333,528	+10.0%	0.45%
SM	SM Energy Co Energy	Added	106,107	+95,863	$3,308,416	+1627.1%	0.44%
BRR	ProCap Financial, Inc. Financial Services	Held	1,548,500	0	$3,267,335	−40.2%	0.44%
CNTA	Centessa Pharmaceuticals plc Healthcare	NEW	78,900	NEW	$3,133,908	NEW	0.42%
BHF	Brighthouse Financial, Inc. Financial Services	Added	51,585	+26,085	$3,088,909	+87.0%	0.41%
DBC	Invesco DB Commodity Index Tracking Fund	Reduced	106,422	-34,000	$3,080,916	−1.9%	0.41%
RIVN	Rivian Automotive, Inc. / DE Consumer Cyclical	Reduced	204,000	-156,100	$3,070,200	−56.7%	0.41%
FIGX	FIGX Capital Acquisition Corp. Financial Services	Held	299,799	0	$3,027,969	+0.4%	0.41%
CVX	Chevron Corp Energy	Added	14,482	+500	$2,996,325	+40.6%	0.40%
AL	SUMISHO AIR LEASE CORP Industrials	Added	45,828	+29,494	$2,976,070	+183.7%	0.40%
MARA	MARA Holdings, Inc. Financial Services	Added	356,400	+18,600	$2,908,224	−4.1%	0.39%
SEMR	SEMrush Holdings, Inc. Technology	NEW	239,600	NEW	$2,860,824	NEW	0.38%
UPS	United Parcel Service Inc Industrials	Added	28,935	+20,337	$2,846,625	+233.8%	0.38%