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
+4.79%
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
$179B
AUM Growth
+$8.24B
Cap. Flow
+$1.08B
Cap. Flow %
0.6%
Top 10 Hldgs %
48.72%
Holding
10,008
New
1,520
Increased
3,222
Reduced
3,616
Closed
1,504

Top Buys

Rank Stock Value
1
AAPL icon
Apple
AAPL
+$552M
2
MSTR icon
Strategy Inc
MSTR
+$85.8M
3
MSTX
Defiance Daily Target 2x Long MSTR ETF
MSTX
+$48.1M
4
INTC icon
Intel
INTC
+$45.4M
5
UBER icon
Uber
UBER
+$43M

Top Sells

Rank Stock Value
1
NVDA icon
NVIDIA
NVDA
+$133M
2
PDD icon
Pinduoduo
PDD
+$82.6M
3
BA icon
Boeing
BA
+$49.8M
4
KWEB icon
KraneShares CSI China Internet ETF
KWEB
+$45.1M
5
MSFT icon
Microsoft
MSFT
+$41M

Sector Composition

Rank Sector Weight
1 Technology 0.68%
2 Consumer Discretionary 0.23%
3 Healthcare 0.19%
4 Financials 0.13%
5 Communication Services 0.11%
Name Market Value Portfolio Weight Shares or Principal Change
in Stake 		Capital Flow
TEL icon
9601
TE Connectivity
TEL
$58.5B
– –
-1,579
Closed -$235K
TEO icon
9602
Telecom Argentina
TEO
$6.03B
– –
-791
Closed -$8.73K
TERN
9603
DELISTED
Terns Pharmaceuticals
TERN
– –
-3,690
Closed -$25K
TEVA icon
9604
Teva Pharmaceuticals
TEVA
$35.1B
– –
-57,994
Closed -$1.06M
TEX icon
9605
Terex
TEX
$7.66B
– –
-2,504
Closed -$131K
TFC icon
9606
Truist Financial
TFC
$63.2B
– –
-86,033
Closed -$3.84M
TFII icon
9607
CALL
TFI International
TFII
$12.5B
– –
-1,600
Closed -$219K
TFIN icon
9608
PUT
Triumph Financial Inc
TFIN
$1.93B
– –
-5,200
Closed -$413K
TFSL icon
9609
CALL
TFS Financial
TFSL
$5.12B
– –
-10,800
Closed -$138K
TFPM icon
9610
Triple Flag Precious Metals
TFPM
$6.04B
– –
-1,430
Closed -$23.7K
TGLS icon
9611
PUT
Tecnoglass
TGLS
$2.01B
– –
-15,000
Closed -$1.03M
TGS icon
9612
Transportadora de Gas del Sur
TGS
$4.74B
– –
-412
Closed -$10.4K
THRY icon
9613
PUT
Thryv Holdings
THRY
$169M
– –
-300
Closed -$5K
THTX
9614
DELISTED
Theratechnologies
THTX
– –
-4,423
Closed -$5K
TIGO icon
9615
CALL
Millicom
TIGO
$16.4B
– –
-2,500
Closed -$67K
TILE icon
9616
CALL
Interface
TILE
$1.9B
– –
-100
Closed -$1K
TILE icon
9617
PUT
Interface
TILE
$1.9B
– –
-300
Closed -$5K
TIPT icon
9618
CALL
Tiptree Inc
TIPT
$671M
– –
-6,900
Closed -$135K
TJX icon
9619
TJX Companies
TJX
$172B
– –
-13,704
Closed -$1.64M
TKC icon
9620
CALL
Turkcell
TKC
$5.11B
– –
-500
Closed -$3K
TKC icon
9621
PUT
Turkcell
TKC
$5.11B
– –
-200
Closed -$1K
TLH icon
9622
iShares 10-20 Year Treasury Bond ETF
TLH
$11B
– –
-2,171
Closed -$237K
TLPH icon
9623
Talphera
TLPH
$67M
$0 ﹤0.01%
+363
New +$283
TLSA icon
9624
Tiziana Life Sciences
TLSA
$120M
– –
-6,308
Closed -$5.84K
TM icon
9625
Toyota
TM
$213B
– –
-11,116
Closed -$1.96M
383 384
385
386 387

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 Q4 2024 Portfolio in Review

As of Q4 2024, Simplex Trading held 10,008 positions worth $179B, up 4.8% from $170B the previous quarter. Its ten largest holdings account for 49% of the portfolio.

Simplex Trading's Q4 2024 filing shows 1,520 new, 3,222 increased, 3,616 reduced and 1,504 closed positions. Its largest new stake was Strategy Inc: 285,022 shares worth $82.5M. The largest sale was NVIDIA, an estimated $133M.

By sector, the portfolio is most concentrated in Technology at 0.68% of assets, up from 0.4% a quarter earlier, followed by Consumer Discretionary and Healthcare.

  • Simplex Trading's largest Q4 2024 buy was Strategy Inc: 285,022 shares worth $82.5M.
  • Simplex Trading added most to Apple in Q4 2024, an estimated $552M increase.
  • Simplex Trading's biggest Q4 2024 reduction was NVIDIA, cutting an estimated $133M.
  • Simplex Trading fully exited Pinduoduo in Q4 2024, selling an estimated $82.6M.
  • Simplex Trading's ten largest holdings make up 49% of its $179B portfolio in Q4 2024.
  • Simplex Trading opened 1,520 new positions and closed 1,504 in Q4 2024.
  • Simplex Trading's portfolio value rose 4.8% quarter-over-quarter to $179B.

Based on Simplex Trading's 13F filing for Q4 2024, filed 11 Feb 2025.