We are live on ! Find out more
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
GRMN
876
CALL
Garmin
GRMN
$46.9B
$8.6M 0.01%
87,500
+29,600
+51% +$3.12M
GDDY icon
877
PUT
GoDaddy
GDDY
$12.3B
$8.53M 0.01%
122,600
+62,900
+105% +$4.78M
KEYS icon
878
CALL
Keysight
KEYS
$54.5B
$8.51M 0.01%
61,700
+37,500
+155% +$5.33M
ED icon
879
PUT
Consolidated Edison
ED
$41.6B
$8.49M 0.01%
89,300
+61,700
+224% +$5.88M
BXP icon
880
CALL
Boston Properties
BXP
$11B
$8.48M 0.01%
95,300
+94,800
+18,960% +$10.5M
UL icon
881
PUT
Unilever
UL
$131B
$8.48M 0.01%
164,444
+65,244
+66% +$3.32M
XEL icon
882
PUT
Xcel Energy
XEL
$51B
$8.43M 0.01%
119,100
+115,800
+3,509% +$8.42M
MP icon
883
PUT
MP Materials
MP
$7.35B
$8.35M 0.01%
260,300
-19,100
-7% -$771K
SLF icon
884
CALL
Sun Life Financial
SLF
$45.6B
$8.32M 0.01%
181,600
+179,200
+7,467% +$8.93M
CL icon
885
Colgate-Palmolive
CL
$72.6B
$8.29M 0.01%
+103,402
New +$8.09M
MSI icon
886
CALL
Motorola Solutions
MSI
$69.4B
$8.28M 0.01%
39,500
+38,200
+2,938% +$8.33M
BTI icon
887
British American Tobacco
BTI
$132B
$8.27M 0.01%
192,809
+26,803
+16% +$1.15M
BURL icon
888
PUT
Burlington
BURL
$22B
$8.26M 0.01%
60,600
-4,200
-6% -$760K
BLDR icon
889
PUT
Builders FirstSource
BLDR
$7.84B
$8.24M 0.01%
153,500
+19,200
+14% +$1.18M
BCE icon
890
CALL
BCE
BCE
$19.9B
$8.19M 0.01%
166,500
+69,700
+72% +$3.74M
PAYX icon
891
PUT
Paychex
PAYX
$40.4B
$8.16M 0.01%
71,700
+64,800
+939% +$8.14M
ROST icon
892
PUT
Ross Stores
ROST
$76.6B
$8.16M 0.01%
116,200
+73,500
+172% +$6.55M
LABU icon
893
Direxion Daily S&P Biotech Bull 3X ETF
LABU
$571M
$8.16M 0.01%
60,527
+53,196
+726% +$9.06M
DKS icon
894
CALL
Dick's Sporting Goods
DKS
$18.4B
$8.14M 0.01%
108,000
+9,500
+10% +$844K
TAP icon
895
CALL
Molson Coors Class B
TAP
$7.68B
$8.1M 0.01%
148,600
+91,800
+162% +$4.93M
QRVO icon
896
CALL
Qorvo
QRVO
$7.63B
$8.03M 0.01%
85,100
+50,100
+143% +$5.4M
IVR icon
897
CALL
Invesco Mortgage Capital
IVR
$776M
$8.01M 0.01%
545,900
+482,070
+755% +$8.14M
LW icon
898
CALL
Lamb Weston
LW
$6.85B
$8M 0.01%
111,900
+44,600
+66% +$2.95M
PAG icon
899
CALL
Penske Automotive Group
PAG
$14.3B
$7.97M 0.01%
76,100
+74,500
+4,656% +$7.99M
AXSM icon
900
PUT
Axsome Therapeutics
AXSM
$12.4B
$7.95M 0.01%
207,700
+148,200
+249% +$4.69M

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.