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 | |
|---|---|---|---|---|---|---|
3251
CALL
Sprout Social
SPT
$522M
| $586K | ﹤0.01% |
10,100
-5,000
| -33% | -$291K |
|
3252
CALL
BigBear.ai
BBAI
$1.32B
| $584K | ﹤0.01% |
158,700
+31,800
| +25% | +$248K |
|
|
SBNY
3253
DELISTED
Signature Bank
SBNY
| $584K | ﹤0.01% |
3,259
-2,573
| -44% | -$576K |
|
3254
PUT
Fidelity National Financial
FNF
$14.6B
| $583K | ﹤0.01% |
16,432
+6,968
| +74% | +$272K |
|
|
WEBR
3255
PUT
DELISTED
Weber Inc.
WEBR
| $583K | ﹤0.01% |
80,900
-42,100
| -34% | -$352K |
|
3256
Innoviz Technologies
INVZ
$99.5M
| $582K | ﹤0.01% |
148,557
-34,351
| -19% | -$134K |
|
3257
CALL
SandRidge Energy
SD
$485M
| $582K | ﹤0.01% |
37,200
+22,700
| +157% | +$455K |
|
3258
CALL
Brookfield Renewable
BEP
$9.7B
| $581K | ﹤0.01% |
16,700
+9,200
| +123% | +$331K |
|
|
FL
3259
DELISTED
Foot Locker
FL
| $581K | ﹤0.01% |
23,028
-119,859
| -84% | -$3.58M |
|
3260
Revolve Group
RVLV
$1.92B
| $581K | ﹤0.01% |
+22,443
| New | +$829K |
|
3261
Outdoor Holding Co
POWW
$256M
| $580K | ﹤0.01% |
150,884
+32,783
| +28% | +$136K |
|
3262
PUT
ProPetro Holding
PUMP
$1.31B
| $578K | ﹤0.01% |
57,800
+49,600
| +605% | +$652K |
|
|
AMRS
3263
PUT
DELISTED
Amyris Inc.
AMRS
| $578K | ﹤0.01% |
312,800
+146,800
| +88% | +$432K |
|
3264
CALL
Solid Power
SLDP
$475M
| $576K | ﹤0.01% |
107,100
+52,600
| +97% | +$411K |
|
3265
PUT
B&G Foods
BGS
$297M
| $575K | ﹤0.01% |
24,200
-5,000
| -17% | -$124K |
|
3266
CALL
International Money Express
IMXI
$398M
| $575K | ﹤0.01% |
28,100
+6,400
| +29% | +$128K |
|
3267
CALL
Rambus
RMBS
$9.49B
| $575K | ﹤0.01% |
26,800
+10,800
| +68% | +$267K |
|
3268
CALL
TC Energy
TRP
$70.5B
| $575K | ﹤0.01% |
11,100
+9,000
| +429% | +$502K |
|
3269
First Trust Health Care AlphaDEX Fund
FXH
$1.05B
| $574K | ﹤0.01% |
5,572
-78
| -1% | -$8.4K |
|
3270
Alliance Resource Partners
ARLP
$3.33B
| $573K | ﹤0.01% |
+31,452
| New | +$570K |
|
3271
PUT
Workhorse Group
WKHS
$32.4M
| $573K | ﹤0.01% |
74
-10
| -12% | -$94.4K |
|
|
DO
3272
PUT
DELISTED
Diamond Offshore Drilling, Inc.
DO
| $573K | ﹤0.01% |
+97,300
| New | +$727K |
|
3273
PUT
Energy Fuels
UUUU
$2.83B
| $572K | ﹤0.01% |
116,500
+24,100
| +26% | +$171K |
|
3274
PUT
Boot Barn
BOOT
$4.81B
| $571K | ﹤0.01% |
8,300
-3,400
| -29% | -$291K |
|
3275
PUT
Lamb Weston
LW
$7.51B
| $571K | ﹤0.01% |
8,000
-1,600
| -17% | -$106K |
|
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.