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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
FVRR icon
2601
PUT
Fiverr
FVRR
$398M
$1.01M ﹤0.01%
29,500
-34,700
-54% -$1.65M
TLRY icon
2602
Tilray
TLRY
$498M
$1.01M ﹤0.01%
32,518
+32,418
+32,418% +$1.53M
JPGE
2603
PUT
DELISTED
JPMorgan Diversified Return Global Equity ETF
JPGE
$1.01M ﹤0.01%
18,300
-12,700
-41% -$704K
UPWK icon
2604
CALL
Upwork
UPWK
$1.14B
$1.01M ﹤0.01%
49,000
+4,200
+9% +$82.6K
WWE
2605
CALL
DELISTED
World Wrestling Entertainment
WWE
$1.01M ﹤0.01%
16,200
+5,500
+51% +$340K
LSPD icon
2606
Lightspeed Commerce
LSPD
$1.35B
$1.01M ﹤0.01%
45,295
+19,556
+76% +$460K
TS icon
2607
CALL
Tenaris
TS
$28.5B
$1.01M ﹤0.01%
39,300
+12,700
+48% +$391K
AXSM icon
2608
Axsome Therapeutics
AXSM
$12.3B
$1.01M ﹤0.01%
26,340
+25,340
+2,534% +$801K
HAPN
2609
PUT
Happen Inc
HAPN
$2.16B
$1.01M ﹤0.01%
86,300
-45,900
-35% -$646K
SM icon
2610
CALL
SM Energy
SM
$7.26B
$1.01M ﹤0.01%
29,500
-30,000
-50% -$1.22M
DCP
2611
PUT
DELISTED
DCP Midstream, LP
DCP
$1.01M ﹤0.01%
34,100
+11,500
+51% +$393K
TFX icon
2612
PUT
Teleflex
TFX
$5.8B
$1.01M ﹤0.01%
4,100
+4,000
+4,000% +$1.17M
ABB
2613
CALL
DELISTED
ABB Ltd
ABB
$1.01M ﹤0.01%
37,700
-25,800
-41% -$766K
OPRX icon
2614
CALL
OptimizeRx
OPRX
$120M
$1M ﹤0.01%
36,700
+21,000
+134% +$622K
ANNX icon
2615
CALL
Annexon
ANNX
$841M
$1M ﹤0.01%
+266,000
New +$813K
FLG
2616
CALL
Flagstar Bank National Association
FLG
$5.74B
$1M ﹤0.01%
36,600
+15,100
+70% +$434K
RF icon
2617
Regions Financial
RF
$26.2B
$1M ﹤0.01%
53,394
-15,489
-22% -$320K
FDS icon
2618
PUT
Factset
FDS
$9.46B
$999K ﹤0.01%
2,600
-400
-13% -$157K
VZIO
2619
CALL
DELISTED
VIZIO Holding Corp.
VZIO
$999K ﹤0.01%
146,600
-1,900
-1% -$15.5K
FLR icon
2620
PUT
Fluor
FLR
$7.22B
$995K ﹤0.01%
40,900
-7,700
-16% -$207K
HAPN
2621
CALL
Happen Inc
HAPN
$2.16B
$995K ﹤0.01%
85,200
-72,300
-46% -$1.02M
FRSH icon
2622
PUT
Freshworks
FRSH
$2.99B
$994K ﹤0.01%
75,600
+31,300
+71% +$487K
SHLX
2623
DELISTED
Shell Midstream Partners, L.P.
SHLX
$993K ﹤0.01%
70,586
+40,591
+135% +$572K
PERI icon
2624
PUT
Perion Network
PERI
$371M
$992K ﹤0.01%
54,600
-9,500
-15% -$197K
LNW
2625
CALL
DELISTED
Light & Wonder
LNW
$991K ﹤0.01%
21,100
-19,500
-48% -$1.04M

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.