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 | |
|---|---|---|---|---|---|---|
2801
CALL
Teekay Tankers
TNK
$2.65B
| $848K | ﹤0.01% |
48,100
-59,300
| -55% | -$1.06M |
|
2802
PUT
Integer Holdings
ITGR
$3.4B
| $847K | ﹤0.01% |
12,000
+6,400
| +114% | +$489K |
|
2803
CALL
American Express Global Business Travel
GBTG
$4.92B
| $845K | ﹤0.01% |
134,000
-201,200
| -60% | -$1.76M |
|
|
CHNG
2804
DELISTED
Change Healthcare Inc. Common Stock
CHNG
| $845K | ﹤0.01% |
36,651
+4,522
| +14% | +$106K |
|
2805
PUT
Vir Biotechnology
VIR
$1.48B
| $843K | ﹤0.01% |
33,100
-7,300
| -18% | -$170K |
|
2806
PUT
Blackbaud
BLKB
$1.67B
| $842K | ﹤0.01% |
14,500
+14,400
| +14,400% | +$837K |
|
2807
First Horizon
FHN
$12.3B
| $842K | ﹤0.01% |
38,560
+11,104
| +40% | +$250K |
|
|
ABK
2808
CALL
DELISTED
Ambac Financial Group
ABK
| $842K | ﹤0.01% |
74,200
+15,900
| +27% | +$180K |
|
2809
Guardant Health
GH
$19.1B
| $841K | ﹤0.01% |
20,866
+2,273
| +12% | +$113K |
|
|
TGH
2810
PUT
DELISTED
Textainer Group Holdings limited
TGH
| $841K | ﹤0.01% |
30,700
-5,900
| -16% | -$190K |
|
2811
CALL
Bakkt Inc
BKKT
$327M
| $840K | ﹤0.01% |
16,000
-2,908
| -15% | -$245K |
|
2812
Northern Oil and Gas
NOG
$2.16B
| $838K | ﹤0.01% |
+33,210
| New | +$965K |
|
2813
PUT
Vulcan Materials
VMC
$37.4B
| $838K | ﹤0.01% |
5,900
-7,800
| -57% | -$1.29M |
|
2814
PUT
FTAI Aviation
FTAI
$21.2B
| $837K | ﹤0.01% |
50,704
-17,214
| -25% | -$305K |
|
2815
CALL
Republic Services
RSG
$67B
| $837K | ﹤0.01% |
6,400
+2,300
| +56% | +$302K |
|
2816
CALL
Agree Realty
ADC
$9.72B
| $836K | ﹤0.01% |
11,600
+7,300
| +170% | +$507K |
|
2817
CALL
Safety Insurance
SAFT
$1.51B
| $835K | ﹤0.01% |
8,600
-100
| -1% | -$9K |
|
|
DAWN
2818
PUT
DELISTED
Day One Biopharmaceuticals
DAWN
| $834K | ﹤0.01% |
+46,600
| New | +$481K |
|
2819
PUT
Blackstone Mortgage Trust
BXMT
$2.83B
| $832K | ﹤0.01% |
30,100
+8,300
| +38% | +$251K |
|
2820
CALL
Coursera
COUR
$1.7B
| $832K | ﹤0.01% |
58,700
-63,500
| -52% | -$1.13M |
|
2821
PUT
ING
ING
$95B
| $832K | ﹤0.01% |
83,900
+10,300
| +14% | +$105K |
|
2822
Banco Santander
SAN
$199B
| $832K | ﹤0.01% |
297,232
+51,312
| +21% | +$157K |
|
2823
CALL
DHT Holdings
DHT
$2.99B
| $831K | ﹤0.01% |
135,700
+12,000
| +10% | +$70.5K |
|
|
TRTN
2824
PUT
DELISTED
Triton International Limited
TRTN
| $831K | ﹤0.01% |
15,800
-3,500
| -18% | -$212K |
|
|
ISEE
2825
PUT
DELISTED
IVERIC bio, Inc. Common Stock
ISEE
| $831K | ﹤0.01% |
86,400
+71,800
| +492% | +$901K |
|
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.