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 | |
|---|---|---|---|---|---|---|
|
LGMK
4651
CALL
DELISTED
LogicMark
LGMK
| $193K | ﹤0.01% |
356
-3
| -0.8% | -$2.23K |
|
4652
PUT
New Fortress Energy
NFE
$93.4M
| $193K | ﹤0.01% |
4,900
+100
| +2% | +$4.31K |
|
4653
PUT
Varonis Systems
VRNS
$4.55B
| $193K | ﹤0.01% |
6,600
-2,100
| -24% | -$78.1K |
|
|
PRVB
4654
DELISTED
Provention Bio, Inc. Common Stock
PRVB
| $193K | ﹤0.01% |
48,366
+24,629
| +104% | +$117K |
|
4655
PUT
AerSale
ASLE
$290M
| $192K | ﹤0.01% |
13,300
-2,700
| -17% | -$39.2K |
|
4656
PUT
Emergent Biosolutions
EBS
$367M
| $192K | ﹤0.01% |
6,200
+3,700
| +148% | +$126K |
|
4657
ProShares UltraShort Euro
EUO
$34.9M
| $192K | ﹤0.01% |
6,328
+3,016
| +91% | +$89K |
|
|
FINV
4658
CALL
FinVolution Group
FINV
$1.14B
| $192K | ﹤0.01% |
40,500
-116,200
| -74% | -$469K |
|
4659
CALL
Owlet
OWLT
$150M
| $192K | ﹤0.01% |
8,093
+5,622
| +228% | +$278K |
|
4660
CALL
The RealReal
REAL
$1.44B
| $192K | ﹤0.01% |
77,500
+2,600
| +3% | +$11.6K |
|
|
IDEX
4661
CALL
DELISTED
Ideanomics, Inc. Common Stock
IDEX
| $192K | ﹤0.01% |
2,323
-1,356
| -37% | -$122K |
|
4662
Quest Diagnostics
DGX
$25.7B
| $191K | ﹤0.01% |
1,437
-6,937
| -83% | -$945K |
|
4663
CALL
Federal Realty Investment Trust
FRT
$10.8B
| $191K | ﹤0.01% |
2,000
-900
| -31% | -$101K |
|
4664
PUT
NWPX Infrastructure Inc
NWPX
$1.19B
| $191K | ﹤0.01% |
6,400
+4,100
| +178% | +$122K |
|
4665
PUT
U-Haul Holding Co
UHAL
$13.7B
| $191K | ﹤0.01% |
4,000
+2,000
| +100% | +$103K |
|
|
VSXY
4666
Victoria's Secret
VSXY
$7.04B
| $191K | ﹤0.01% |
6,839
+130
| +2% | +$5.63K |
|
4667
CALL
W.R. Berkley
WRB
$27B
| $191K | ﹤0.01% |
4,200
-375
| -8% | -$17.1K |
|
|
UFOX
4668
Defiance Space and Connective Tech ETF
UFOX
$834M
| $191K | ﹤0.01% |
6,075
-770
| -11% | -$26.4K |
|
|
RTLR
4669
PUT
DELISTED
Rattler Midstream LP Common Units
RTLR
| $191K | ﹤0.01% |
14,000
-27,700
| -66% | -$409K |
|
4670
CALL
Ameriprise Financial
AMP
$48.3B
| $190K | ﹤0.01% |
800
-1,200
| -60% | -$321K |
|
4671
CALL
Gaotu Techedu
GOTU
$434M
| $190K | ﹤0.01% |
97,400
-283,700
| -74% | -$455K |
|
4672
CALL
Relay Therapeutics
RLAY
$4.11B
| $190K | ﹤0.01% |
+11,400
| New | +$244K |
|
4673
10x Genomics
TXG
$5.99B
| $190K | ﹤0.01% |
+4,203
| New | +$218K |
|
|
ZUO
4674
CALL
DELISTED
Zuora, Inc.
ZUO
| $190K | ﹤0.01% |
21,300
-14,800
| -41% | -$164K |
|
4675
PUT
Assured Guaranty
AGO
$3.69B
| $189K | ﹤0.01% |
3,400
-2,100
| -38% | -$121K |
|
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.