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
TJX icon
751
PUT
TJX Companies
TJX
$170B
$11.2M 0.01%
200,000
-1,800
-0.9% -$109K
BBBY
752
CALL
DELISTED
Bed Bath & Beyond Inc
BBBY
$11.2M 0.01%
2,244,000
+1,278,100
+132% +$14.9M
GWW icon
753
PUT
W.W. Grainger
GWW
$65.3B
$11.1M 0.01%
24,500
+8,700
+55% +$4.23M
LOGI icon
754
PUT
Logitech
LOGI
$15.2B
$11.1M 0.01%
213,500
+165,600
+346% +$10.2M
DBX icon
755
PUT
Dropbox
DBX
$6.81B
$11.1M 0.01%
527,400
+79,900
+18% +$1.73M
EPAM icon
756
CALL
EPAM Systems
EPAM
$4.69B
$11.1M 0.01%
37,500
-15,300
-29% -$4.67M
GSK icon
757
PUT
GSK
GSK
$103B
$11M 0.01%
202,560
+21,920
+12% +$1.21M
BBWI icon
758
PUT
Bath & Body Works
BBWI
$4.01B
$11M 0.01%
411,400
+256,800
+166% +$11.1M
JNK icon
759
State Street SPDR Bloomberg High Yield Bond ETF
JNK
$7.24B
$11M 0.01%
121,337
+55,662
+85% +$5.37M
GPN icon
760
CALL
Global Payments
GPN
$22.1B
$11M 0.01%
99,400
-29,700
-23% -$3.76M
CTAS icon
761
PUT
Cintas
CTAS
$82.4B
$11M 0.01%
117,600
-185,600
-61% -$18.1M
SQQQ icon
762
ProShares UltraPro Short QQQ
SQQQ
$2.21B
$11M 0.01%
7,455
+5,269
+241% +$6.52M
CHTR icon
763
CALL
Charter Communications
CHTR
$15.2B
$10.9M 0.01%
23,300
+1,700
+8% +$829K
AMT icon
764
PUT
American Tower
AMT
$77.7B
$10.9M 0.01%
42,700
-45,000
-51% -$11.3M
COOP
765
PUT
DELISTED
Mr. Cooper
COOP
$10.9M 0.01%
296,900
+90,900
+44% +$3.85M
TM icon
766
CALL
Toyota
TM
$210B
$10.9M 0.01%
70,500
-53,700
-43% -$8.88M
RACE icon
767
CALL
Ferrari
RACE
$63.3B
$10.8M 0.01%
59,000
+18,800
+47% +$3.74M
CZR icon
768
PUT
Caesars Entertainment
CZR
$6.1B
$10.8M 0.01%
282,400
-12,600
-4% -$702K
KWEB icon
769
KraneShares CSI China Internet ETF
KWEB
$5.2B
$10.7M 0.01%
327,849
-470,748
-59% -$13.5M
DLTR icon
770
CALL
Dollar Tree
DLTR
$23.1B
$10.7M 0.01%
68,900
-91,800
-57% -$14.5M
XPO icon
771
CALL
XPO
XPO
$25B
$10.7M 0.01%
374,636
+220,810
+144% +$7.02M
DBC icon
772
CALL
Invesco DB Commodity Index Tracking Fund
DBC
$1.73B
$10.7M 0.01%
401,000
+173,400
+76% +$4.87M
UNP icon
773
Union Pacific
UNP
$182B
$10.7M 0.01%
+50,004
New +$11.4M
UNG icon
774
PUT
United States Natural Gas Fund
UNG
$470M
$10.7M 0.01%
140,225
-128,850
-48% -$13.3M
BRSL
775
PUT
Brightstar Lottery PLC
BRSL
$1.91B
$10.6M 0.01%
569,900
+242,300
+74% +$5.16M

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.