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 | |
|---|---|---|---|---|---|---|
4826
PUT
Iridium Communications
IRDM
$5.02B
| $169K | ﹤0.01% |
4,500
+2,800
| +165% | +$104K |
|
|
KC
4827
CALL
Kingsoft Cloud Holdings
KC
$3.34B
| $169K | ﹤0.01% |
38,000
+27,400
| +258% | +$117K |
|
4828
PUT
Andersons Inc
ANDE
$2.41B
| $168K | ﹤0.01% |
5,100
+2,100
| +70% | +$89.3K |
|
4829
Community Health Systems
CYH
$393M
| $168K | ﹤0.01% |
+45,012
| New | +$317K |
|
|
GAN
4830
CALL
DELISTED
GAN Ltd
GAN
| $168K | ﹤0.01% |
56,900
+15,000
| +36% | +$55.5K |
|
|
GRFS
4831
PUT
Grifois
GRFS
$5.36B
| $168K | ﹤0.01% |
14,200
+3,100
| +28% | +$37K |
|
4832
PUT
Harrow
HROW
$1.45B
| $168K | ﹤0.01% |
23,200
-4,000
| -15% | -$27K |
|
|
TBHC
4833
DELISTED
The Brand House Collective
TBHC
| $168K | ﹤0.01% |
47,831
-7,562
| -14% | -$48.4K |
|
4834
PUT
Pilgrim's Pride
PPC
$6.51B
| $168K | ﹤0.01% |
5,400
+2,400
| +80% | +$70.6K |
|
|
LNAI
4835
PUT
Lunai Bioworks
LNAI
$8.8M
| $168K | ﹤0.01% |
1,091
+1,051
| +2,628% | +$481K |
|
4836
CALL
Alaunos Therapeutics
TCRT
$4.59M
| $168K | ﹤0.01% |
905
+288
| +47% | +$27.5K |
|
4837
ProShares Ultra Russell2000
UWM
$245M
| $168K | ﹤0.01% |
5,449
+3,935
| +260% | +$146K |
|
|
IS
4838
DELISTED
ironSource Ltd.
IS
| $168K | ﹤0.01% |
70,694
+49,466
| +233% | +$166K |
|
4839
PUT
Capricor Therapeutics
CAPR
$223M
| $167K | ﹤0.01% |
47,900
+23,900
| +100% | +$84.8K |
|
4840
Century Aluminum
CENX
$4.43B
| $167K | ﹤0.01% |
22,730
-5,598
| -20% | -$87K |
|
4841
CALL
Citius Pharmaceuticals
CTXR
$15.6M
| $167K | ﹤0.01% |
7,268
-148
| -2% | -$4.06K |
|
4842
CALL
Hawaiian Electric Industries
HE
$2.23B
| $167K | ﹤0.01% |
4,100
+1,800
| +78% | +$75.7K |
|
|
PCH
4843
CALL
DELISTED
PotlatchDeltic
PCH
| $167K | ﹤0.01% |
3,800
-11,200
| -75% | -$578K |
|
|
VPU
4844
Vanguard Utilities ETF
VPU
$8.46B
| $167K | ﹤0.01% |
1,097
+139
| +15% | +$21.9K |
|
|
SUM
4845
CALL
DELISTED
Summit Materials, Inc. Class A Common Stock
SUM
| $167K | ﹤0.01% |
7,322
-36,714
| -83% | -$975K |
|
|
CSSE
4846
DELISTED
Chicken Soup for the Soul Entertainment, Inc. Class A Common Stock
CSSE
| $167K | ﹤0.01% |
22,557
+18,556
| +464% | +$142K |
|
|
AHT
4847
PUT
Ashford Hospitality Trust
AHT
$20.9M
| $166K | ﹤0.01% |
2,780
-1,120
| -29% | -$75.5K |
|
|
AMWD
4848
DELISTED
American Woodmark
AMWD
| $166K | ﹤0.01% |
3,709
+1,067
| +40% | +$51.5K |
|
4849
Krispy Kreme
DNUT
$548M
| $166K | ﹤0.01% |
12,230
-96,573
| -89% | -$1.33M |
|
4850
PUT
Amdocs
DOX
$5.92B
| $166K | ﹤0.01% |
2,000
-1,000
| -33% | -$82.4K |
|
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.