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 | |
|---|---|---|---|---|---|---|
1251
EPAM Systems
EPAM
$4.69B
| $4.21M | ﹤0.01% |
14,287
-518
| -3% | -$158K |
|
1252
CALL
Lithia Motors
LAD
$7.78B
| $4.2M | ﹤0.01% |
15,300
+5,500
| +56% | +$1.6M |
|
1253
PUT
PACCAR
PCAR
$69.6B
| $4.2M | ﹤0.01% |
76,500
-5,250
| -6% | -$296K |
|
1254
PUT
United Microelectronic
UMC
$48.9B
| $4.2M | ﹤0.01% |
620,300
+14,100
| +2% | +$116K |
|
1255
CALL
KB Home
KBH
$3.48B
| $4.2M | ﹤0.01% |
147,400
-21,200
| -13% | -$677K |
|
1256
PUT
Freshpet
FRPT
$2.83B
| $4.19M | ﹤0.01% |
80,800
+77,700
| +2,506% | +$5.99M |
|
1257
CALL
Synchrony
SYF
$23.7B
| $4.19M | ﹤0.01% |
151,700
+92,000
| +154% | +$3.19M |
|
1258
CALL
Keurig Dr Pepper
KDP
$40.4B
| $4.17M | ﹤0.01% |
117,900
+56,100
| +91% | +$2.04M |
|
1259
PUT
Tractor Supply
TSCO
$16.3B
| $4.17M | ﹤0.01% |
107,500
+64,500
| +150% | +$2.62M |
|
|
ANSS
1260
PUT
DELISTED
Ansys
ANSS
| $4.16M | ﹤0.01% |
17,400
+17,100
| +5,700% | +$4.52M |
|
1261
PUT
Methanex
MEOH
$4.32B
| $4.16M | ﹤0.01% |
108,700
+18,500
| +21% | +$911K |
|
1262
CALL
Sony
SONY
$123B
| $4.11M | ﹤0.01% |
251,500
-280,000
| -53% | -$4.96M |
|
1263
CALL
AerCap
AER
$23.9B
| $4.11M | ﹤0.01% |
100,400
-17,900
| -15% | -$829K |
|
1264
CALL
Whirlpool
WHR
$2.42B
| $4.1M | ﹤0.01% |
26,500
-6,600
| -20% | -$1.15M |
|
1265
PUT
Vanguard FTSE Europe ETF
VGK
$30B
| $4.1M | ﹤0.01% |
77,800
-289,700
| -79% | -$16.8M |
|
1266
CALL
Trimble
TRMB
$12.3B
| $4.09M | ﹤0.01% |
70,300
+26,800
| +62% | +$1.76M |
|
1267
CALL
Ally Financial
ALLY
$13.1B
| $4.08M | ﹤0.01% |
121,700
+38,700
| +47% | +$1.55M |
|
1268
Roblox
RBLX
$34B
| $4.08M | ﹤0.01% |
+124,055
| New | +$4.17M |
|
1269
CALL
Martin Marietta Materials
MLM
$33.6B
| $4.07M | ﹤0.01% |
13,600
-2,600
| -16% | -$887K |
|
1270
CALL
Fluor
FLR
$7.29B
| $4.06M | ﹤0.01% |
166,900
-700
| -0.4% | -$18.8K |
|
1271
PUT
Duolingo
DUOL
$5.7B
| $4.05M | ﹤0.01% |
46,300
+32,000
| +224% | +$2.83M |
|
1272
CALL
Service Corp International
SCI
$11.4B
| $4.05M | ﹤0.01% |
58,600
-11,300
| -16% | -$773K |
|
1273
PUT
Genuine Parts
GPC
$17.1B
| $4.04M | ﹤0.01% |
30,400
+25,100
| +474% | +$3.34M |
|
1274
CALL
Algonquin Power & Utilities
AQN
$4.69B
| $4.03M | ﹤0.01% |
300,300
| – | – |
|
1275
PUT
Monster Beverage
MNST
$91.4B
| $4.03M | ﹤0.01% |
87,000
+75,800
| +677% | +$3.3M |
|
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.