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 | |
|---|---|---|---|---|---|---|
4201
PUT
Western Midstream Partners
WES
$19.4B
| $274K | ﹤0.01% |
11,300
+1,100
| +11% | +$28.1K |
|
4202
Ardelyx
ARDX
$1.24B
| $273K | ﹤0.01% |
463,944
+213,352
| +85% | +$157K |
|
4203
CALL
Traeger
COOK
$165M
| $273K | ﹤0.01% |
1,288
-136
| -10% | -$37.9K |
|
4204
CALL
California Resources
CRC
$4.49B
| $273K | ﹤0.01% |
7,100
-36,600
| -84% | -$1.57M |
|
4205
CALL
Ecopetrol
EC
$33.7B
| $273K | ﹤0.01% |
25,200
+9,200
| +58% | +$146K |
|
4206
Healthcare Realty
HR
$7.56B
| $273K | ﹤0.01% |
9,801
-16,759
| -63% | -$498K |
|
4207
CALL
Sabra Healthcare REIT
SBRA
$5.56B
| $273K | ﹤0.01% |
19,600
+7,800
| +66% | +$104K |
|
|
SJT
4208
PUT
San Juan Basin Royalty Trust
SJT
$119M
| $273K | ﹤0.01% |
31,500
+7,900
| +33% | +$85.8K |
|
|
ALTR
4209
PUT
DELISTED
Altair Engineering Inc
ALTR
| $273K | ﹤0.01% |
+5,200
| New | +$284K |
|
|
BNFT
4210
DELISTED
Benefitfocus, Inc.
BNFT
| $273K | ﹤0.01% |
35,141
+19,905
| +131% | +$196K |
|
4211
PUT
PCB Bancorp
PCB
$394M
| $272K | ﹤0.01% |
+14,600
| New | +$297K |
|
4212
CALL
Piper Sandler
PIPR
$4.99B
| $272K | ﹤0.01% |
9,600
+8,800
| +1,100% | +$266K |
|
4213
Weibo
WB
$1.97B
| $272K | ﹤0.01% |
11,799
-10,740
| -48% | -$241K |
|
|
CSSE
4214
PUT
DELISTED
Chicken Soup for the Soul Entertainment, Inc. Class A Common Stock
CSSE
| $272K | ﹤0.01% |
36,800
+35,800
| +3,580% | +$274K |
|
|
TRTN
4215
DELISTED
Triton International Limited
TRTN
| $272K | ﹤0.01% |
5,175
-43,507
| -89% | -$2.63M |
|
4216
CALL
Ameren
AEE
$30.4B
| $271K | ﹤0.01% |
3,000
-18,900
| -86% | -$1.75M |
|
|
EH
4217
CALL
EHang Holdings
EH
$375M
| $271K | ﹤0.01% |
29,400
+6,500
| +28% | +$61.2K |
|
4218
CALL
Global Net Lease
GNL
$1.87B
| $271K | ﹤0.01% |
19,200
+3,300
| +21% | +$47.2K |
|
|
HIVE
4219
PUT
HIVE Digital Technologies
HIVE
$679M
| $271K | ﹤0.01% |
90,700
+83,380
| +1,139% | +$482K |
|
4220
Magnite
MGNI
$2.83B
| $271K | ﹤0.01% |
30,590
-27,180
| -47% | -$291K |
|
4221
PUT
Planet Labs
PL
$6.94B
| $271K | ﹤0.01% |
62,700
-21,200
| -25% | -$109K |
|
4222
Sweetgreen
SG
$756M
| $271K | ﹤0.01% |
23,271
+9,609
| +70% | +$203K |
|
4223
PUT
WEC Energy
WEC
$36.3B
| $271K | ﹤0.01% |
2,700
-32,200
| -92% | -$3.26M |
|
|
AMPS
4224
PUT
DELISTED
Altus Power
AMPS
| $271K | ﹤0.01% |
43,000
+3,900
| +10% | +$26.1K |
|
|
ENLC
4225
PUT
DELISTED
ENLINK MIDSTREAM, LLC
ENLC
| $271K | ﹤0.01% |
31,900
+15,000
| +89% | +$151K |
|
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.