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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
HUBS icon
651
PUT
HubSpot
HUBS
$10.5B
$14M 0.01%
46,600
-200
-0.4% -$73K
BBY icon
652
CALL
Best Buy
BBY
$18B
$14M 0.01%
214,900
-22,400
-9% -$1.87M
CHPT icon
653
CALL
ChargePoint
CHPT
$133M
$13.9M 0.01%
50,925
+6,635
+15% +$1.84M
GLW icon
654
CALL
Corning
GLW
$126B
$13.9M 0.01%
441,800
+76,500
+21% +$2.64M
APD icon
655
CALL
Air Products & Chemicals
APD
$66.3B
$13.9M 0.01%
57,800
+37,400
+183% +$9.09M
SPOT icon
656
PUT
Spotify
SPOT
$99.2B
$13.9M 0.01%
147,900
-25,500
-15% -$2.88M
LMT icon
657
Lockheed Martin
LMT
$134B
$13.8M 0.01%
32,164
+28,667
+820% +$12.6M
P
658
CALL
Everpure Inc
P
$24.8B
$13.8M 0.01%
537,400
+284,000
+112% +$7.86M
GS icon
659
Goldman Sachs
GS
$313B
$13.8M 0.01%
46,441
+14,189
+44% +$4.42M
NFLX icon
660
Netflix
NFLX
$292B
$13.8M 0.01%
786,900
+604,670
+332% +$13.4M
CZR icon
661
CALL
Caesars Entertainment
CZR
$6.1B
$13.7M 0.01%
358,800
+137,200
+62% +$7.64M
U icon
662
CALL
Unity
U
$12.5B
$13.7M 0.01%
372,900
+146,500
+65% +$8.32M
VALE icon
663
CALL
Vale
VALE
$62.9B
$13.7M 0.01%
936,400
-447,300
-32% -$7.64M
LYFT icon
664
CALL
Lyft
LYFT
$5.39B
$13.7M 0.01%
1,031,200
+497,000
+93% +$11.6M
DLR icon
665
PUT
Digital Realty Trust
DLR
$73.7B
$13.7M 0.01%
105,400
+52,400
+99% +$7.24M
WHR icon
666
PUT
Whirlpool
WHR
$2.42B
$13.6M 0.01%
87,600
+27,000
+45% +$4.7M
Z icon
667
PUT
Zillow
Z
$7.04B
$13.5M 0.01%
424,000
-67,900
-14% -$2.73M
IPFF
668
CALL
DELISTED
iShares International Preferred Stock ETF
IPFF
$13.4M 0.01%
282,800
+41,600
+17% +$1.98M
KMB icon
669
CALL
Kimberly-Clark
KMB
$36.4B
$13.4M 0.01%
99,300
-22,200
-18% -$2.92M
TECK icon
670
CALL
Teck Resources
TECK
$29.5B
$13.4M 0.01%
438,800
+12,300
+3% +$485K
ICE icon
671
PUT
Intercontinental Exchange
ICE
$82.4B
$13.4M 0.01%
142,600
+73,000
+105% +$7.8M
TIP icon
672
iShares TIPS Bond ETF
TIP
$14.5B
$13.4M 0.01%
117,478
+98,175
+509% +$11.6M
SSO icon
673
CALL
ProShares Ultra S&P500
SSO
$7.82B
$13.4M 0.01%
729,600
+423,000
+138% +$11.3M
IPOD
674
CALL
DELISTED
Social Capital Hedosophia Holdings Corp. IV
IPOD
$13.4M 0.01%
1,347,500
+520,200
+63% +$5.23M
VLO icon
675
Valero Energy
VLO
$89.8B
$13.4M 0.01%
125,843
+125,618
+55,830% +$14.9M

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.