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 | |
|---|---|---|---|---|---|---|
3176
Unity
U
$13.9B
| $624K | ﹤0.01% |
16,972
-57,483
| -77% | -$3.26M |
|
3177
PUT
Fortuna Silver Mines
FSM
$2.55B
| $623K | ﹤0.01% |
219,600
-38,600
| -15% | -$134K |
|
|
BRG
3178
PUT
DELISTED
Bluerock Residential Growth REIT, Inc.
BRG
| $623K | ﹤0.01% |
23,700
-4,300
| -15% | -$114K |
|
3179
CALL
Assurant
AIZ
$14B
| $622K | ﹤0.01% |
3,600
-2,600
| -42% | -$471K |
|
3180
PUT
Jacobs Solutions
J
$16.6B
| $622K | ﹤0.01% |
5,924
-25,630
| -81% | -$2.87M |
|
3181
PUT
Playboy Inc
PLBY
$141M
| $622K | ﹤0.01% |
97,200
+18,700
| +24% | +$171K |
|
3182
PUT
Dentsply Sirona
XRAY
$2.7B
| $621K | ﹤0.01% |
17,400
+11,100
| +176% | +$449K |
|
|
BLDP
3183
CALL
Ballard Power Systems
BLDP
$808M
| $620K | ﹤0.01% |
98,500
-4,300
| -4% | -$34.4K |
|
|
CTLP
3184
PUT
DELISTED
Cantaloupe
CTLP
| $620K | ﹤0.01% |
110,800
+2,700
| +2% | +$14.3K |
|
3185
LPL Financial
LPLA
$27.4B
| $620K | ﹤0.01% |
3,365
+2,035
| +153% | +$386K |
|
3186
PUT
Frontier Group Holdings
ULCC
$1.43B
| $620K | ﹤0.01% |
66,200
+66,000
| +33,000% | +$668K |
|
|
RDFN
3187
PUT
DELISTED
Redfin
RDFN
| $619K | ﹤0.01% |
75,200
+32,400
| +76% | +$371K |
|
|
RSX
3188
DELISTED
VanEck Russia ETF
RSX
| $619K | ﹤0.01% |
109,620
-139,300
| -56% | -$787K |
|
|
VG
3189
PUT
DELISTED
Vonage Holdings Corporation
VG
| $619K | ﹤0.01% |
32,900
+5,200
| +19% | +$99.5K |
|
3190
Deckers Outdoor
DECK
$14.2B
| $618K | ﹤0.01% |
14,538
-43,380
| -75% | -$1.89M |
|
3191
VanEck Pharmaceutical ETF
PPH
$987M
| $618K | ﹤0.01% |
8,051
+7,961
| +8,846% | +$622K |
|
3192
Kinross Gold
KGC
$28.1B
| $617K | ﹤0.01% |
172,405
-220,897
| -56% | -$1.07M |
|
3193
Pegasystems
PEGA
$4.85B
| $616K | ﹤0.01% |
25,792
+14,522
| +129% | +$434K |
|
|
BIG
3194
PUT
DELISTED
Big Lots, Inc.
BIG
| $616K | ﹤0.01% |
29,400
-15,500
| -35% | -$456K |
|
3195
CALL
Ryman Hospitality Properties
RHP
$8.58B
| $615K | ﹤0.01% |
8,100
-2,900
| -26% | -$256K |
|
|
CMA
3196
DELISTED
Comerica
CMA
| $614K | ﹤0.01% |
8,371
-465
| -5% | -$37.6K |
|
3197
PUT
Ericsson
ERIC
$32.7B
| $614K | ﹤0.01% |
83,000
-243,600
| -75% | -$1.99M |
|
3198
Applovin
APP
$140B
| $613K | ﹤0.01% |
17,824
+12,309
| +223% | +$495K |
|
|
EGIO
3199
DELISTED
Edgio, Inc. Common Stock
EGIO
| $612K | ﹤0.01% |
6,627
-4,714
| -42% | -$679K |
|
3200
HubSpot
HUBS
$12.2B
| $611K | ﹤0.01% |
2,033
-2,476
| -55% | -$904K |
|
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.