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
+6.46%
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
$122B
AUM Growth
+$7.84B
Cap. Flow
-$3.39B
Cap. Flow %
-2.78%
Top 10 Hldgs %
42.57%
Holding
10,535
New
1,474
Increased
3,350
Reduced
3,913
Closed
1,517

Top Buys

Rank Stock Value
1
MSFT icon
Microsoft
MSFT
+$53.9M
2
TLT icon
iShares 20+ Year Treasury Bond ETF
TLT
+$52.9M
3
NVDA icon
NVIDIA
NVDA
+$47.1M
4
PYPL icon
PayPal
PYPL
+$41.7M
5
GOOG icon
Alphabet (Google) Class C
GOOG
+$28.4M

Top Sells

Rank Stock Value
1
AAPL icon
Apple
AAPL
+$51.4M
2
WMT icon
Walmart Inc
WMT
+$46.4M
3
OIH icon
VanEck Oil Services ETF
OIH
+$34.2M
4
ADBE icon
Adobe
ADBE
+$33.5M
5
SBUX icon
Starbucks
SBUX
+$26.8M

Sector Composition

Rank Sector Weight
1 Technology 0.41%
2 Healthcare 0.21%
3 Consumer Discretionary 0.21%
4 Communication Services 0.2%
5 Financials 0.15%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
ATIP
10501
CALL
DELISTED
ATI Physical Therapy, Inc.
ATIP
– –
-814
Closed -$10K
ATIP
10502
DELISTED
ATI Physical Therapy, Inc.
ATIP
– –
-5
Closed –
ATIP
10503
PUT
DELISTED
ATI Physical Therapy, Inc.
ATIP
– –
-106
Closed -$1K
VSTO
10504
DELISTED
Vista Outdoor Inc.
VSTO
– –
-10,327
Closed -$279K
EBIX
10505
DELISTED
Ebix Inc
EBIX
– –
-14,688
Closed -$275K
PFSW
10506
DELISTED
PFSweb, Inc.
PFSW
– –
-40,241
Closed -$168K
PFSW
10507
PUT
DELISTED
PFSweb, Inc.
PFSW
– –
-24,300
Closed -$103K
UBA
10508
DELISTED
Urstadt Biddle Properties Inc. Class A
UBA
– –
-42
Closed -$784
GSP
10509
PUT
DELISTED
Barclays Bank PLC iPath Exchange Traded Notes due 2036 Linked to GSCI Total Return Index
GSP
– –
-2,100
Closed -$66K
CEMI
10510
CALL
DELISTED
Chembio diagnostics, Inc.
CEMI
– –
-3,700
Closed -$1K
CEMI
10511
DELISTED
Chembio diagnostics, Inc.
CEMI
– –
-2,036
Closed –
CEMI
10512
PUT
DELISTED
Chembio diagnostics, Inc.
CEMI
– –
-8,100
Closed -$3K
AAWW
10513
CALL
DELISTED
Atlas Air Worldwide Holdings, Inc.
AAWW
– –
-11,800
Closed -$53K
SBNY
10514
CALL
DELISTED
Signature Bank
SBNY
– –
-65,300
Closed -$11K
SBNY
10515
DELISTED
Signature Bank
SBNY
– –
-2,100
Closed –
QIWI
10516
DELISTED
QIWI PLC
QIWI
$0 ﹤0.01%
3,247
– –
BSQR
10517
DELISTED
BSQUARE Corporation
BSQR
– –
-644
Closed -$757
LAC
10518
DELISTED
Lithium Americas Corp. Common Shares
LAC
– –
-1,000
Closed -$20.6K
COW
10519
DELISTED
iPath Series B Bloomberg Livestock Subindex Total ReturnSM ETN
COW
– –
-468
Closed -$18K
GAZ
10520
CALL
DELISTED
iPath Series B Bloomberg Natural Gas Total Return Sub-Index ETN
GAZ
– –
-2,900
Closed -$31K
GAZ
10521
DELISTED
iPath Series B Bloomberg Natural Gas Total Return Sub-Index ETN
GAZ
– –
-12,066
Closed -$125K
417 418 419 420
421

Similar funds

Mitsubishi UFJ Asset Management
Mitsubishi UFJ Asset Management Tokyo, Japan $149B AUM 24.71% 1-Year Est. Return
Creative Planning
Creative Planning Overland Park, Kansas $147B AUM 18.73% 1-Year Est. Return
Jennison Associates
Jennison Associates New York $145B AUM 34.61% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
Sumitomo Mitsui Trust Group
Sumitomo Mitsui Trust Group Minato-Ku, Tokyo, Japan $154B AUM 29.96% 1-Year Est. Return
Canada Pension Plan Investment Board
Canada Pension Plan Investment Board Toronto Ontario, Ontario, Canada $155B AUM 29.93% 1-Year Est. Return
Victory Capital Management
Victory Capital Management San Antonio, Texas $156B AUM 27.51% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $140B AUM 27.84% 1-Year Est. Return

Simplex Trading's Q2 2023 Portfolio in Review

As of Q2 2023, Simplex Trading held 10,535 positions worth $122B, up 6.9% from $114B the previous quarter. Its ten largest holdings account for 43% of the portfolio.

Simplex Trading's Q2 2023 filing shows 1,474 new, 3,350 increased, 3,913 reduced and 1,517 closed positions. Its largest new stake was Microsoft: 171,935 shares worth $58.5M. The largest sale was Apple, an estimated $51.4M.

By sector, the portfolio is most concentrated in Technology at 0.41% of assets, down from 0.42% a quarter earlier, followed by Healthcare and Consumer Discretionary.

  • Simplex Trading's largest Q2 2023 buy was Microsoft: 171,935 shares worth $58.5M.
  • Simplex Trading added most to iShares 20+ Year Treasury Bond ETF in Q2 2023, an estimated $52.9M increase.
  • Simplex Trading's biggest Q2 2023 reduction was Adobe, cutting an estimated $33.5M.
  • Simplex Trading fully exited Apple in Q2 2023, selling an estimated $51.4M.
  • Simplex Trading's ten largest holdings make up 43% of its $122B portfolio in Q2 2023.
  • Simplex Trading opened 1,474 new positions and closed 1,517 in Q2 2023.
  • Simplex Trading's portfolio value rose 6.9% quarter-over-quarter to $122B.

Based on Simplex Trading's 13F filing for Q2 2023, filed 4 Aug 2023.