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Simplex Trading

Simplex Trading Portfolio holdings

AUM $149B
1-Year Est. Return 62.07%
 

Simplex Trading, founded in 2004 and headquartered in Chicago, Illinois, is a technology-driven proprietary trading firm specializing in market-making and liquidity provision, primarily in U.S. equity options and futures options. Leveraging advanced proprietary software and data-driven analysis, the firm optimizes trading strategies and develops innovative solutions to capitalize on financial market opportunities, maintaining a competitive edge through automation and a collaborative team of technologists and traders. With a workforce exceeding 300 and led by CEO Erik Swanson since 2014, Simplex operates with a low-ego, high-intelligence culture, focusing on minimal bureaucracy and rapid execution, while also making strategic venture capital investments in fintech startups. Recognized as a top workplace in Chicago by Built In’s 2025 awards, Simplex continues to evolve, blending cutting-edge technology with a commitment to market efficiency and growth.

This Fund
S&P 500
This Quarter Est. Return
-17.92%
1 Year Est. Return
+62.07%
3 Year Est. Return
+116.86%
5 Year Est. Return
+116.02%
10 Year Est. Return
+774.44%
AUM
$94.1B
AUM Growth
-$15.3B
Cap. Flow
+$11.3B
Cap. Flow %
12.02%
Top 10 Hldgs %
40.12%
Holding
11,810
New
1,405
Increased
4,027
Reduced
4,289
Closed
1,792

Sector Composition

Rank Sector Weight
1 Technology 0.84%
2 Communication Services 0.32%
3 Consumer Discretionary 0.32%
4 Financials 0.28%
5 Healthcare 0.2%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake
Capital Flow
PSTH
2401
CALL
DELISTED
Pershing Square Tontine Holdings, Ltd.
PSTH
$1.23M ﹤0.01%
61,500
-14,500
-19% -$288K
OWL icon
2402
CALL
Blue Owl Capital
OWL
$6.54B
$1.22M ﹤0.01%
122,000
+104,600
+601% +$1.25M
BPT
2403
PUT
DELISTED
BP Prudhoe Bay Royalty Trust
BPT
$1.22M ﹤0.01%
59,700
-51,800
-46% -$928K
BOH icon
2404
PUT
Bank of Hawaii
BOH
$3.17B
$1.22M ﹤0.01%
16,400
+15,300
+1,391% +$1.18M
MOMO
2405
PUT
Hello Group
MOMO
$869M
$1.22M ﹤0.01%
241,500
-3,900
-2% -$20.4K
NVCR icon
2406
PUT
NovoCure
NVCR
$1.97B
$1.22M ﹤0.01%
17,500
-27,900
-61% -$2.1M
TSEM icon
2407
CALL
Tower Semiconductor
TSEM
$25.3B
$1.21M ﹤0.01%
26,300
-18,300
-41% -$871K
CNK icon
2408
CALL
Cinemark Holdings
CNK
$3.93B
$1.21M ﹤0.01%
80,800
+6,500
+9% +$103K
ESTE
2409
DELISTED
Earthstone Energy Inc. Class A Common Stock
ESTE
$1.21M ﹤0.01%
88,912
+71,228
+403% +$1.12M
LIT icon
2410
Global X Lithium & Battery Tech ETF
LIT
$1.5B
$1.21M ﹤0.01%
16,692
-38,120
-70% -$2.71M
RUTH
2411
CALL
DELISTED
Ruth's Hospitality Group, Inc.
RUTH
$1.21M ﹤0.01%
74,600
+18,600
+33% +$358K
HTHT icon
2412
PUT
Huazhu Hotels Group
HTHT
$12.9B
$1.21M ﹤0.01%
31,700
-147,200
-82% -$4.61M
IBN icon
2413
ICICI Bank
IBN
$107B
$1.21M ﹤0.01%
67,976
-28,720
-30% -$537K
SPB icon
2414
CALL
Spectrum Brands
SPB
$2.04B
$1.21M ﹤0.01%
14,700
+200
+1% +$17.2K
VGSH icon
2415
PUT
Vanguard Short-Term Treasury ETF
VGSH
$29.3B
$1.2M ﹤0.01%
20,200
+7,600
+60% +$448K
DM
2416
DELISTED
Desktop Metal, Inc.
DM
$1.2M ﹤0.01%
54,602
+9,174
+20% +$268K
NWS icon
2417
CALL
News Corp Class B
NWS
$16.8B
$1.2M ﹤0.01%
77,000
-26,800
-26% -$499K
LOVE icon
2418
PUT
LoveSac
LOVE
$249M
$1.2M ﹤0.01%
43,500
+33,000
+314% +$1.28M
MAT icon
2419
CALL
Mattel
MAT
$4.3B
$1.2M ﹤0.01%
53,600
+10,000
+23% +$236K
COWN
2420
CALL
DELISTED
Cowen Inc. Class A Common Stock
COWN
$1.2M ﹤0.01%
50,500
+34,400
+214% +$835K
IFF icon
2421
CALL
International Flavors & Fragrances
IFF
$19.5B
$1.19M ﹤0.01%
10,000
-400
-4% -$50K
LULU icon
2422
lululemon athletica
LULU
$13.4B
$1.19M ﹤0.01%
4,372
-12,859
-75% -$4.12M
ITB icon
2423
iShares US Home Construction ETF
ITB
$2.35B
$1.19M ﹤0.01%
+22,661
New +$1.29M
MAXN
2424
CALL
DELISTED
Maxeon Solar Technologies
MAXN
$1.19M ﹤0.01%
894
+132
+17% +$163K
MORN icon
2425
CALL
Morningstar
MORN
$6.94B
$1.18M ﹤0.01%
4,900
+3,900
+390% +$983K

Similar funds

Simplex Trading's Q2 2022 Portfolio in Review

As of Q2 2022, Simplex Trading held 11,810 positions worth $94.1B, down 14% from $109B the previous quarter. Its ten largest holdings account for 40% of the portfolio.

Simplex Trading deployed $11.3B of net new capital in Q2 2022, opening 1,405 new positions and adding to 4,027 existing holdings. Its largest new stake was Alphabet (Google) Class C: 543,540 shares worth $59.4M.

By sector, the portfolio is most concentrated in Technology at 0.84% of assets, up from 0.67% a quarter earlier, followed by Communication Services and Consumer Discretionary.

On the sell side, the largest reduction was United Airlines, an estimated $22.7M trimmed.

  • Simplex Trading's largest Q2 2022 buy was Alphabet (Google) Class C: 543,540 shares worth $59.4M.
  • Simplex Trading added most to Apple in Q2 2022, an estimated $286M increase.
  • Simplex Trading's biggest Q2 2022 reduction was United Airlines, cutting an estimated $22.7M.
  • Simplex Trading fully exited State Street SPDR S&P 500 ETF Trust in Q2 2022, selling an estimated $51.5M.
  • Simplex Trading's ten largest holdings make up 40% of its $94.1B portfolio in Q2 2022.
  • Simplex Trading opened 1,405 new positions and closed 1,792 in Q2 2022.
  • Simplex Trading's portfolio value fell 14% quarter-over-quarter to $94.1B.

Based on Simplex Trading's 13F filing for Q2 2022, filed 3 Aug 2022.