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 | |
|---|---|---|---|---|---|---|
|
DNMR
3101
CALL
DELISTED
Danimer Scientific, Inc.
DNMR
| $663K | ﹤0.01% |
3,640
-1,505
| -29% | -$273K |
|
3102
PUT
Herbalife
HLF
$1.3B
| $662K | ﹤0.01% |
32,400
-17,900
| -36% | -$443K |
|
3103
CALL
InterDigital
IDCC
$6.72B
| $662K | ﹤0.01% |
10,900
+6,900
| +173% | +$423K |
|
|
MGI
3104
CALL
DELISTED
MoneyGram International, Inc. New
MGI
| $662K | ﹤0.01% |
66,200
-9,500
| -13% | -$95.7K |
|
3105
CALL
Independence Realty Trust
IRT
$3.93B
| $661K | ﹤0.01% |
31,900
+26,100
| +450% | +$628K |
|
3106
PUT
Sprout Social
SPT
$522M
| $661K | ﹤0.01% |
11,400
-9,900
| -46% | -$575K |
|
3107
CALL
Full Truck Alliance
YMM
$9.64B
| $661K | ﹤0.01% |
73,000
+68,800
| +1,638% | +$468K |
|
3108
CALL
Cirrus Logic
CRUS
$6.87B
| $660K | ﹤0.01% |
9,100
-3,600
| -28% | -$279K |
|
3109
CALL
UGI
UGI
$7.92B
| $660K | ﹤0.01% |
17,100
-3,600
| -17% | -$140K |
|
3110
CALL
Ardagh Metal Packaging
AMBP
$3.11B
| $659K | ﹤0.01% |
108,100
-166,000
| -61% | -$1.12M |
|
3111
CALL
MSCI
MSCI
$42.1B
| $659K | ﹤0.01% |
1,600
-100
| -6% | -$43.5K |
|
3112
CALL
PAR Technology
PAR
$707M
| $659K | ﹤0.01% |
17,600
+4,100
| +30% | +$147K |
|
3113
CALL
Travel + Leisure Co
TNL
$4.81B
| $659K | ﹤0.01% |
17,000
-3,300
| -16% | -$163K |
|
|
CDK
3114
DELISTED
CDK Global, Inc.
CDK
| $659K | ﹤0.01% |
12,044
-37,814
| -76% | -$2.04M |
|
3115
Cars.com
CARS
$705M
| $658K | ﹤0.01% |
69,848
+40,933
| +142% | +$442K |
|
|
FIRY
3116
CALL
Firy Inc
FIRY
$154M
| $658K | ﹤0.01% |
26,550
-1,890
| -7% | -$73.8K |
|
3117
CALL
Western Union
WU
$2.58B
| $657K | ﹤0.01% |
39,900
-120,800
| -75% | -$2.13M |
|
|
PDCO
3118
CALL
DELISTED
Patterson Companies, Inc.
PDCO
| $657K | ﹤0.01% |
21,700
+18,400
| +558% | +$576K |
|
|
DVAX
3119
PUT
DELISTED
Dynavax Technologies
DVAX
| $655K | ﹤0.01% |
52,100
-62,100
| -54% | -$660K |
|
3120
CALL
SouthState Bank Corp
SSB
$10.3B
| $655K | ﹤0.01% |
+8,500
| New | +$662K |
|
3121
CALL
Vuzix
VUZI
$187M
| $655K | ﹤0.01% |
92,300
-21,600
| -19% | -$127K |
|
|
ME
3122
CALL
DELISTED
23andMe Holding Co
ME
| $655K | ﹤0.01% |
13,220
+3,080
| +30% | +$178K |
|
|
TPGY
3123
CALL
DELISTED
TPG Pace Beneficial Finance Corp.
TPGY
| $655K | ﹤0.01% |
66,100
+52,400
| +382% | +$519K |
|
3124
PUT
BJs Wholesale Club
BJ
$12.4B
| $654K | ﹤0.01% |
10,500
-34,300
| -77% | -$2.16M |
|
3125
CALL
OppFi
OPFI
$824M
| $654K | ﹤0.01% |
198,800
-91,000
| -31% | -$293K |
|
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.