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 | |
|---|---|---|---|---|---|---|
8476
PUT
Nelnet
NNI
$4.92B
| $8K | ﹤0.01% |
100
-600
| -86% | -$49.8K |
|
8477
PUT
Oil States International
OIS
$483M
| $8K | ﹤0.01% |
1,500
-100
| -6% | -$698 |
|
|
ONL
8478
PUT
Orion Office REIT
ONL
$148M
| $8K | ﹤0.01% |
800
-4,700
| -85% | -$60.7K |
|
8479
PUT
OneSpan
OSPN
$572M
| $8K | ﹤0.01% |
700
+500
| +250% | +$6.59K |
|
|
PPBT
8480
PUT
Purple Biotech
PPBT
$1.28M
| $8K | ﹤0.01% |
18
-17
| -49% | -$10.2K |
|
8481
CALL
RAVE Restaurant Group
RAVE
$43.9M
| $8K | ﹤0.01% |
7,800
-1,900
| -20% | -$1.88K |
|
8482
RBC Bearings
RBC
$18.2B
| $8K | ﹤0.01% |
+46
| New | +$8.17K |
|
|
LNAI
8483
Lunai Bioworks
LNAI
$10.2M
| $8K | ﹤0.01% |
55
+47
| +588% | +$21.5K |
|
8484
Rackspace Technology
RXT
$967M
| $8K | ﹤0.01% |
+1,235
| New | +$11.1K |
|
8485
Singularity Future Technology
SGLY
$4M
| $8K | ﹤0.01% |
+21
| New | +$17.2K |
|
8486
CALL
SK Telecom
SKM
$11.8B
| $8K | ﹤0.01% |
+400
| New | +$10.1K |
|
8487
CALL
SEACOR Marine Holdings
SMHI
$216M
| $8K | ﹤0.01% |
1,400
+1,200
| +600% | +$9.49K |
|
8488
CALL
Neuronetics
STIM
$130M
| $8K | ﹤0.01% |
+2,600
| New | +$7.55K |
|
8489
PUT
Supernus Pharmaceuticals
SUPN
$2.77B
| $8K | ﹤0.01% |
300
-800
| -73% | -$22.9K |
|
8490
iShares MSCI Thailand ETF
THD
$364M
| $8K | ﹤0.01% |
118
-600
| -84% | -$44.1K |
|
8491
CALL
Titan Machinery
TITN
$458M
| $8K | ﹤0.01% |
400
-2,000
| -83% | -$49.9K |
|
8492
Turkcell
TKC
$4.78B
| $8K | ﹤0.01% |
+3,436
| New | +$11.1K |
|
8493
CALL
TROOPS Inc
TROO
$214M
| $8K | ﹤0.01% |
4,000
-300
| -7% | -$901 |
|
|
8494
PUT
TROOPS Inc
TROO
$214M
| $8K | ﹤0.01% |
4,000
+700
| +21% | +$2.1K |
|
8495
Travelzoo
TZOO
$77.8M
| $8K | ﹤0.01% |
1,374
+976
| +245% | +$6.41K |
|
8496
VEON
VEON
$3.57B
| $8K | ﹤0.01% |
702
-1,791
| -72% | -$23.9K |
|
|
8497
PUT
VEON
VEON
$3.57B
| $8K | ﹤0.01% |
708
-128
| -15% | -$1.71K |
|
8498
PUT
Vista Gold
VGZ
$245M
| $8K | ﹤0.01% |
12,100
+7,800
| +181% | +$6.62K |
|
8499
VolitionRx Ltd
VNRX
$10.3M
| $8K | ﹤0.01% |
201
-56
| -22% | -$2.82K |
|
8500
CALL
Wintrust Financial
WTFC
$10.9B
| $8K | ﹤0.01% |
+100
| New | +$8.61K |
|
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.