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 | |
|---|---|---|---|---|---|---|
6301
PUT
Compass Diversified
CODI
$758M
| $57K | ﹤0.01% |
2,700
+400
| +17% | +$9.1K |
|
6302
Copa Holdings
CPA
$5.76B
| $57K | ﹤0.01% |
912
+615
| +207% | +$43.4K |
|
6303
PUT
CareTrust REIT
CTRE
$9.91B
| $57K | ﹤0.01% |
3,100
-1,600
| -34% | -$28.4K |
|
6304
PUT
Donaldson
DCI
$10.9B
| $57K | ﹤0.01% |
1,200
-200
| -14% | -$10.1K |
|
6305
PUT
Healthpeak Properties
DOC
$15.1B
| $57K | ﹤0.01% |
2,200
-23,000
| -91% | -$697K |
|
6306
NeoGenomics
NEO
$1.96B
| $57K | ﹤0.01% |
6,995
-15,446
| -69% | -$147K |
|
6307
PUT
Omeros
OMER
$857M
| $57K | ﹤0.01% |
20,800
+16,100
| +343% | +$54.6K |
|
6308
Pultegroup
PHM
$24.1B
| $57K | ﹤0.01% |
1,444
-4,205
| -74% | -$177K |
|
6309
CALL
Sanmina
SANM
$9.95B
| $57K | ﹤0.01% |
1,400
-300
| -18% | -$12.4K |
|
6310
CALL
Saratoga Investment
SAR
$312M
| $57K | ﹤0.01% |
2,400
+200
| +9% | +$5.18K |
|
6311
State Street SPDR Bloomberg Short Term High Yield Bond ETF
SJNK
$4.89B
| $57K | ﹤0.01% |
+2,369
| New | +$59.8K |
|
6312
PUT
Shutterstock
SSTK
$198M
| $57K | ﹤0.01% |
+1,000
| New | +$67K |
|
6313
Upwork
UPWK
$1.13B
| $57K | ﹤0.01% |
+2,800
| New | +$55K |
|
|
EGIO
6314
CALL
DELISTED
Edgio, Inc. Common Stock
EGIO
| $57K | ﹤0.01% |
623
-1,372
| -69% | -$197K |
|
|
WEJO
6315
DELISTED
Wejo Group Limited Common Shares
WEJO
| $57K | ﹤0.01% |
48,283
+42,758
| +774% | +$99.9K |
|
|
MANT
6316
CALL
DELISTED
Mantech International Corp
MANT
| $57K | ﹤0.01% |
+600
| New | +$53.6K |
|
|
MANT
6317
DELISTED
Mantech International Corp
MANT
| $57K | ﹤0.01% |
+602
| New | +$53.8K |
|
|
PLAN
6318
PUT
DELISTED
Anaplan, Inc.
PLAN
| $57K | ﹤0.01% |
79,900
+42,000
| +111% | +$2.72M |
|
|
AFMD
6319
DELISTED
Affimed
AFMD
| $56K | ﹤0.01% |
+2,023
| New | +$69.3K |
|
6320
PUT
Ares Management
ARES
$28.9B
| $56K | ﹤0.01% |
1,000
-100
| -9% | -$6.92K |
|
6321
CALL
Badger Meter
BMI
$3.89B
| $56K | ﹤0.01% |
700
+500
| +250% | +$41.3K |
|
6322
Broadridge
BR
$17.8B
| $56K | ﹤0.01% |
393
-112
| -22% | -$16.3K |
|
6323
PUT
BuzzFeed
BZFD
$99M
| $56K | ﹤0.01% |
9,125
+8,900
| +3,956% | +$134K |
|
6324
PUT
CACI
CACI
$11B
| $56K | ﹤0.01% |
+200
| New | +$55.6K |
|
6325
CALL
Everest Group
EG
$14.5B
| $56K | ﹤0.01% |
+200
| New | +$56.5K |
|
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.