SIMPLEX TRADING, LLC

CIK

1488542

Location

CHICAGO, IL

Portfolio Value

Mid $2,833,130,313

Diversification

Diversified

Filing Date

Global Rank

#904 / 8,636 ▼ 52 · as of Mar 2026

Top Industry

Semiconductors 20.4%

3Y Alpha vs SPY

-21.5%

Period ended 4 months ago

Filed May 14, 2026 · 3mo

25 quarters · since Mar 2020

Clone Performance

Aug 2023–Aug 2026 · vs SPY

Hypothetical growth of buying every stock this filer reported holding, rebalancing on each filing and indexed to the same start. Option positions cannot be bought this way and are left out.

Cloned portfolio

+57.9%

SPY

+78.8%

Annualised alpha

-4.9%

Max drawdown

−24.0%

Estimate. 13F holdings are quarter-lagged, so the clone rebalances about 45 days after each period end — when the filing becomes public — and it excludes option and short positions. It tracks 100% of reported value on average across 13 quarters. Past performance does not predict future results.

Portfolio Concentration

1,986 tracked positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025

Top Position

9.3%

+3.1 pts

Top 5

28.7%

+11.6 pts

Top 10

43.7%

+18.5 pts

HHI

252

Diversified+136

Portfolio Trend

25 quarters · across all stocks

Sector Breakdown

As of Mar 31, 2026

Sector	% Portfolio	Value	Positions
Technology	32.6%	$924,131,292	310
Communication Services	11.7%	$332,750,989	79
Consumer Cyclical	11.2%	$316,288,835	214
Unclassified	11.0%	$310,334,871	40
Healthcare	10.4%	$295,688,252	372
Industrials	5.3%	$149,174,948	251
Basic Materials	4.4%	$125,930,784	133
Financial Services	4.4%	$125,568,555	241
Energy	4.4%	$123,965,338	112
Consumer Defensive	2.3%	$66,221,742	84
Real Estate	1.5%	$42,050,263	111
Utilities	0.7%	$21,024,444	39

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
NVDA	Nvidia Corp	+768,382	1,509,153	$263,196,283
PTON	Peloton Interactive, Inc.	+467,871	562,779	$2,414,321
ORCL	Oracle Corp	+383,259	514,658	$75,711,338
GOOGL	Alphabet Inc.	+354,434	441,708	$126,915,776
LODE	Comstock Inc.	+336,313	349,326	$1,065,444
PROP	Prairie Operating Co.	+303,599	304,286	$617,700
LPL	LG Display Co., Ltd.	+298,777	301,696	$1,170,580
MBLY	Mobileye Global Inc.	+261,711	329,323	$2,262,449
RXT	Rackspace Technology, Inc.	+261,433	265,216	$259,911
ETHA	iShares Ethereum Trust ETF	+242,647	392,685	$0
CTMX	CytomX Therapeutics, Inc.	+224,387	248,438	$1,167,658
AG	First Majestic Silver Corp	+212,138	221,445	$4,756,638
BBAI	BigBear.ai Holdings, Inc.	+210,186	440,411	$1,550,246
UUUU	Energy Fuels Inc	+209,430	307,525	$5,612,331
AMD	Advanced Micro Devices Inc	+204,147	260,622	$53,018,333
SBET	Sharplink, Inc.	+201,011	526,984	$3,399,046
SNAP	Snap Inc	+195,040	1,722,466	$7,923,343
UNH	Unitedhealth Group Inc	+194,855	287,580	$77,816,272
BB	BLACKBERRY Ltd	+182,696	194,764	$631,035
ARBE	Arbe Robotics Ltd.	+181,908	185,701	$113,277
META	Meta Platforms, Inc.	+167,185	229,853	$131,505,796
ALIT	Alight, Inc. / Delaware	+164,204	428,995	$250,104
CMPS	COMPASS Pathways plc	+162,235	267,465	$1,479,081
DOW	Dow Inc.	+161,937	459,257	$19,128,054
GRAB	Grab Holdings Ltd	+146,474	730,250	$2,672,715
No positions match the current search.

Trimmed

Positions the filer reduced

25 positions

Ticker	Company	Δ Shares	Shares	Value
WULF	Terawulf Inc.	−1,633,000	308,017	$4,444,685
EOSE	Eos Energy Enterprises, Inc.	−1,264,605	984,329	$4,882,271
SOFI	SoFi Technologies, Inc.	−837,994	968,408	$15,378,319
BTG	B2gold Corp	−782,349	78,723	$356,615
NNDM	Nano Dimension Ltd.	−681,682	222,218	$377,770
AAPL	Apple Inc.	−668,957	39,784	$10,096,781
CMCSA	Comcast Corp	−665,309	118,388	$3,398,919
NVO	Novo Nordisk A S	−624,359	392,803	$14,435,510
NU	Nu Holdings Ltd.	−623,775	234,510	$3,369,908
CRON	Cronos Group Inc.	−569,150	212,416	$533,164
AAL	American Airlines Group Inc.	−519,641	176,984	$1,900,808
NFLX	Netflix Inc	−506,158	184,871	$17,775,346
RR	Richtech Robotics Inc.	−496,116	41,201	$86,110
FUBO	FuboTV Inc.	−484,623	23,062	$218,166
RKLB	Rocket Lab Corp	−398,955	1,155	$74,174
QBTS	D-Wave Quantum Inc.	−385,778	302	$4,357
QUBT	Quantum Computing Inc.	−382,997	166,052	$1,137,456
VALE	Vale S.A.	−379,364	257,145	$4,091,176
ASTS	AST SpaceMobile, Inc.	−366,594	56,256	$4,661,934
CLF	Cleveland-Cliffs Inc.	−351,819	2,151	$18,175
ET	Energy Transfer LP	−338,231	394,233	$7,608,696
BILI	Bilibili Inc.	−336,082	68,445	$1,544,119
WDC	Western Digital Corp	−335,977	5,785	$1,564,784
GAU	Galiano Gold Inc.	−325,089	8,876	$22,278
INTC	Intel Corp	−324,524	757,722	$33,438,271
No positions match the current search.

New Positions

Positions the filer opened this quarter

25 positions

Ticker	Company	Shares	Value
AMZN	Amazon Com Inc	764,884	$159,302,390
TSM	Taiwan Semiconductor Manufacturing Co Ltd	351,805	$118,892,499
GLD	Spdr Gold Trust	230,612	$99,230,037
USO	United States Oil Fund, LP	329,788	$41,965,523
ASML	Asml Holding NV	16,741	$22,112,015
PEP	Pepsico Inc	121,557	$18,876,586
CHTR	Charter Communications, Inc. /Mo/	62,565	$13,506,532
ALAB	Astera Labs, Inc.	91,866	$10,068,513
QQQ	Invesco Qqq Trust, Series 1	16,296	$9,405,725
CP	Canadian Pacific Kansas City Ltd/Cn	92,018	$7,238,135
CAMT	Camtek Ltd	43,213	$6,551,522
DAL	Delta Air Lines, Inc.	98,263	$6,532,524
MSTR	Strategy Inc	45,923	$5,731,190
KKR	KKR & Co. Inc.	60,647	$5,609,847
NCLH	Norwegian Cruise Line Holdings Ltd.	260,450	$4,870,415
TMO	Thermo Fisher Scientific Inc.	9,480	$4,659,704
MOS	Mosaic Co	181,811	$4,636,180
FBTC	Fidelity Wise Origin Bitcoin Fund	70,689	$4,172,771
AR	ANTERO RESOURCES Corp	95,227	$4,041,433
DBA	Invesco Db Agriculture Fund	138,363	$3,780,077
RTX	RTX Corp	17,827	$3,438,828
INTU	Intuit Inc.	7,768	$3,358,727
FTI	TechnipFMC plc	46,617	$3,222,633
NLY	Annaly Capital Management Inc	151,291	$3,199,804
GSAT	Globalstar, Inc.	47,813	$3,175,739
No positions match the current search.

Sold Out

Positions the filer fully exited

25 positions

Ticker	Company	Shares	Value
BE	Bloom Energy Corp	301,347	$26,184,040
VRT	Vertiv Holdings Co	151,799	$24,592,955
NEE	Nextera Energy Inc	293,398	$23,553,991
WBD	Warner Bros. Discovery, Inc.	707,385	$20,386,835
COIN	Coinbase Global, Inc.	89,109	$20,151,109
NEM	NEWMONT Corp /DE/	197,022	$19,672,646
BA	Boeing Co	87,723	$19,046,417
AZO	Autozone Inc	5,092	$17,269,518
CRM	Salesforce, Inc.	62,567	$16,574,623
ECHO	EchoStar CORP	144,099	$15,663,561
BSX	Boston Scientific Corp	141,877	$13,527,971
MU	Micron Technology Inc	46,589	$13,296,966
GS	Goldman Sachs Group Inc	15,075	$13,250,925
CAR	Avis Budget Group, Inc.	93,201	$11,959,552
LUV	Southwest Airlines Co	268,783	$11,108,801
LYFT	Lyft, Inc.	543,126	$10,520,350
UAL	United Airlines Holdings, Inc.	85,296	$9,537,798
BJ	BJ's Wholesale Club Holdings, Inc.	96,184	$8,659,445
FUTU	Futu Holdings Ltd	52,535	$8,626,772
W	Wayfair Inc.	81,918	$8,225,386
IONS	Ionis Pharmaceuticals Inc	96,647	$7,645,744
NET	Cloudflare, Inc.	37,976	$7,486,968
FISV	Fiserv Inc	107,216	$7,201,698
GM	General Motors Co	83,865	$6,819,901
ROST	Ross Stores, Inc.	37,382	$6,733,993
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

1,986 tracked positions · $2,833,130,313 total · filing declares 10,161 positions · $149,077,957,641 · 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 1,986 positions by value · page 1 of 40

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
NVDA	Nvidia Corp Technology	Added	1,509,153	+768,382	$263,196,283	+90.5%	9.29%
AMZN	Amazon Com Inc Consumer Cyclical	NEW	764,884	NEW	$159,302,390	NEW	5.62%
SPY	Spdr S&P 500 ETF Trust	Added	202,806	+115,288	$131,892,854	+121.0%	4.66%
META	Meta Platforms, Inc. Communication Services	Added	229,853	+167,185	$131,505,796	+217.9%	4.64%
GOOGL	Alphabet Inc. Communication Services	Added	441,708	+354,434	$126,915,776	+363.9%	4.48%
TSM	Taiwan Semiconductor Manufacturing Co Ltd Technology	NEW	351,805	NEW	$118,892,499	NEW	4.20%
GLD	Spdr Gold Trust	NEW	230,612	NEW	$99,230,037	NEW	3.50%
UNH	Unitedhealth Group Inc Healthcare	Added	287,580	+194,855	$77,816,272	+154.2%	2.75%
ORCL	Oracle Corp Technology	Added	514,658	+383,259	$75,711,338	+195.6%	2.67%
AMD	Advanced Micro Devices Inc Technology	Added	260,622	+204,147	$53,018,333	+338.4%	1.87%
MSFT	Microsoft Corp Technology	Added	136,729	+66,119	$50,612,973	+48.2%	1.79%
USO	United States Oil Fund, LP	NEW	329,788	NEW	$41,965,523	NEW	1.48%
LITE	Lumentum Holdings Inc. Technology	Added	52,807	+35,085	$37,110,647	+468.1%	1.31%
PFE	Pfizer Inc Healthcare	Reduced	1,266,685	-224,352	$35,568,514	−4.2%	1.26%
PLTR	Palantir Technologies Inc. Technology	Added	231,292	+40,002	$33,833,393	−0.5%	1.19%
INTC	Intel Corp Technology	Reduced	757,722	-324,524	$33,438,271	−16.3%	1.18%
SLB	Slb Limited/Nv Energy	Added	547,131	+68,056	$28,117,062	+52.9%	0.99%
CI	Cigna Group Healthcare	Reduced	98,203	-41,822	$26,195,650	−32.0%	0.92%
ASML	Asml Holding NV Technology	NEW	16,741	NEW	$22,112,015	NEW	0.78%
NKE	NIKE, Inc. Consumer Cyclical	Added	398,174	+118,948	$21,031,550	+18.2%	0.74%
DOW	Dow Inc. Basic Materials	Added	459,257	+161,937	$19,128,054	+175.2%	0.68%
PEP	Pepsico Inc Consumer Defensive	NEW	121,557	NEW	$18,876,586	NEW	0.67%
NFLX	Netflix Inc Communication Services	Reduced	184,871	-506,158	$17,775,346	−72.6%	0.63%
SOFI	SoFi Technologies, Inc. Financial Services	Reduced	968,408	-837,994	$15,378,319	−67.5%	0.54%
GEV	GE Vernova Inc. Industrials	Added	16,901	+6,190	$14,752,882	+110.7%	0.52%
NVO	Novo Nordisk A S Healthcare	Reduced	392,803	-624,359	$14,435,510	−72.1%	0.51%
FCX	Freeport-Mcmoran Inc Basic Materials	Reduced	244,754	-321,216	$14,386,640	−50.0%	0.51%
BKNG	Booking Holdings Inc. Consumer Cyclical	Reduced	3,340	-1,804	$14,062,468	−49.0%	0.50%
CHTR	Charter Communications, Inc. /Mo/ Communication Services	NEW	62,565	NEW	$13,506,532	NEW	0.48%
AVGO	Broadcom Inc. Technology	Reduced	43,244	-188,929	$13,384,450	−83.3%	0.47%
UNP	Union Pacific Corp Industrials	Added	54,003	+51,913	$13,102,207	+2610.1%	0.46%
B	Barrick Mining Corp Basic Materials	Added	297,916	+41,749	$12,151,993	+8.9%	0.43%
MS	Morgan Stanley Financial Services	Added	73,071	+5,845	$12,025,294	+0.8%	0.42%
MRNA	Moderna, Inc. Healthcare	Added	219,573	+129,897	$11,154,308	+321.8%	0.39%
NOW	ServiceNow, Inc. Technology	Added	96,638	+53,464	$10,103,502	+52.8%	0.36%
AAPL	Apple Inc. Technology	Reduced	39,784	-668,957	$10,096,781	−94.8%	0.36%
ALAB	Astera Labs, Inc. Technology	NEW	91,866	NEW	$10,068,513	NEW	0.36%
AXTI	Axt Inc Technology	Added	173,574	+85,881	$9,890,246	+589.8%	0.35%
QQQ	Invesco Qqq Trust, Series 1	NEW	16,296	NEW	$9,405,725	NEW	0.33%
ESLT	Elbit Systems Ltd Industrials	Added	11,042	+10,222	$9,375,651	+1879.1%	0.33%
ZTS	Zoetis Inc. Healthcare	Added	74,697	+6,117	$8,829,932	+2.3%	0.31%
BABA	Alibaba Group Holding Ltd Consumer Cyclical	Reduced	66,720	-161,380	$8,370,691	−75.0%	0.30%
SNAP	Snap Inc Communication Services	Added	1,722,466	+195,040	$7,923,343	−35.7%	0.28%
ET	Energy Transfer LP Energy	Reduced	394,233	-338,231	$7,608,696	−37.0%	0.27%
TSLA	Tesla, Inc. Consumer Cyclical	Reduced	20,177	-99,914	$7,500,799	−86.1%	0.26%
IBIT	iShares Bitcoin Trust ETF	Reduced	193,026	-9,894	$7,416,058	−26.4%	0.26%
CP	Canadian Pacific Kansas City Ltd/Cn Industrials	NEW	92,018	NEW	$7,238,135	NEW	0.26%
IREN	IREN Ltd Financial Services	Added	207,840	+15,946	$7,124,755	−1.7%	0.25%
ADI	Analog Devices Inc Technology	Added	21,951	+18,665	$6,983,491	+683.6%	0.25%
CAMT	Camtek Ltd Technology	NEW	43,213	NEW	$6,551,522	NEW	0.23%

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.