Simplex Trading Portfolio holdings
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.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$286M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$82.3M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$72.6M |
| 4 |
Alphabet (Google) Class C
GOOG
|
+$64.2M |
| 5 |
Intel
INTC
|
+$52.9M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$51.5M |
| 2 |
iShares Silver Trust
SLV
|
+$41.8M |
| 3 |
Ford
F
|
+$26.3M |
| 4 |
United Airlines
UAL
|
+$22.7M |
| 5 |
ExxonMobil
XOM
|
+$22.3M |
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 | |
|---|---|---|---|---|---|---|
5876
CALL
Curtiss-Wright
CW
$26.7B
| $79K | ﹤0.01% |
600
-200
| -25% | -$28.4K |
|
5877
IAMGOLD
IAG
$8.2B
| $79K | ﹤0.01% |
+49,645
| New | +$125K |
|
|
MREO
5878
Mereo BioPharma
MREO
$54.7M
| $79K | ﹤0.01% |
70,986
+69,977
| +6,935% | +$54.2K |
|
5879
PUT
Regal Rexnord
RRX
$13.7B
| $79K | ﹤0.01% |
+700
| New | +$89K |
|
5880
CALL
Sally Beauty Holdings
SBH
$1.43B
| $79K | ﹤0.01% |
6,700
-4,800
| -42% | -$69.7K |
|
5881
CALL
Sun Communities
SUI
$15.2B
| $79K | ﹤0.01% |
500
-2,300
| -82% | -$386K |
|
5882
PUT
TE Connectivity
TEL
$59.6B
| $79K | ﹤0.01% |
700
-1,000
| -59% | -$124K |
|
|
GTHX
5883
CALL
DELISTED
G1 Therapeutics, Inc. Common Stock
GTHX
| $79K | ﹤0.01% |
16,100
-33,200
| -67% | -$184K |
|
|
SILK
5884
DELISTED
Silk Road Medical, Inc. Common Stock
SILK
| $79K | ﹤0.01% |
2,192
+492
| +29% | +$17.9K |
|
|
DMTK
5885
CALL
DELISTED
DermTech, Inc. Common Stock
DMTK
| $79K | ﹤0.01% |
14,400
-12,100
| -46% | -$99.1K |
|
|
DS
5886
PUT
DELISTED
Drive Shack Inc.
DS
| $79K | ﹤0.01% |
58,200
-154,400
| -73% | -$220K |
|
5887
PUT
Aclaris Therapeutics
ACRS
$726M
| $78K | ﹤0.01% |
5,600
+3,900
| +229% | +$54.7K |
|
5888
PUT
Federal Agricultural Mortgage Class A
AGM.A
$1.67B
| $78K | ﹤0.01% |
800
-1,500
| -65% | -$149K |
|
5889
PUT
Autoliv
ALV
$9.02B
| $78K | ﹤0.01% |
1,100
| – | – |
|
5890
Arista Networks
ANET
$227B
| $78K | ﹤0.01% |
3,360
+1,412
| +72% | +$38.7K |
|
5891
CALL
Arrow Electronics
ARW
$11.1B
| $78K | ﹤0.01% |
700
-4,200
| -86% | -$490K |
|
5892
PUT
Brixmor Property Group
BRX
$9.67B
| $78K | ﹤0.01% |
3,900
+2,300
| +144% | +$54.4K |
|
5893
Clean Harbors
CLH
$16.5B
| $78K | ﹤0.01% |
891
-1,088
| -55% | -$105K |
|
5894
PUT
Sprinklr
CXM
$1.49B
| $78K | ﹤0.01% |
7,800
-4,500
| -37% | -$54.6K |
|
5895
PUT
Ecovyst
ECVT
$1.32B
| $78K | ﹤0.01% |
8,000
+6,600
| +471% | +$68.6K |
|
|
XRN
5896
Chiron Real Estate Inc
XRN
$514M
| $78K | ﹤0.01% |
+1,404
| New | +$94.6K |
|
5897
CALL
Humacyte
HUMA
$176M
| $78K | ﹤0.01% |
24,600
+17,300
| +237% | +$96.2K |
|
5898
CALL
Innoviva
INVA
$1.55B
| $78K | ﹤0.01% |
5,300
-600
| -10% | -$9.83K |
|
5899
PUT
Krystal Biotech
KRYS
$10.1B
| $78K | ﹤0.01% |
1,200
-600
| -33% | -$37.3K |
|
5900
National CineMedia
NCMI
$376M
| $78K | ﹤0.01% |
8,571
+2,668
| +45% | +$45.1K |
|
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.