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 | |
|---|---|---|---|---|---|---|
1201
CALL
Mettler-Toledo International
MTD
$26.8B
| $4.59M | ﹤0.01% |
4,000
+3,200
| +400% | +$4.02M |
|
1202
PUT
TPG
TPG
$6.87B
| $4.59M | ﹤0.01% |
192,200
+141,900
| +282% | +$3.83M |
|
1203
PUT
Generac Holdings
GNRC
$11.9B
| $4.59M | ﹤0.01% |
21,800
-11,400
| -34% | -$2.8M |
|
1204
CALL
Ericsson
ERIC
$30.7B
| $4.59M | ﹤0.01% |
619,900
-352,600
| -36% | -$2.88M |
|
1205
Nutrien
NTR
$32.7B
| $4.58M | ﹤0.01% |
57,443
+29,340
| +104% | +$2.85M |
|
1206
CALL
Playtika
PLTK
$1.4B
| $4.58M | ﹤0.01% |
345,600
+21,100
| +7% | +$329K |
|
1207
PUT
Deckers Outdoor
DECK
$13.3B
| $4.57M | ﹤0.01% |
107,400
-84,600
| -44% | -$3.69M |
|
|
HOLX
1208
PUT
DELISTED
Hologic
HOLX
| $4.57M | ﹤0.01% |
65,900
-62,400
| -49% | -$4.63M |
|
1209
CALL
Diageo
DEO
$46.2B
| $4.56M | ﹤0.01% |
26,200
-3,200
| -11% | -$609K |
|
1210
CALL
Cintas
CTAS
$82.4B
| $4.56M | ﹤0.01% |
48,800
-80,800
| -62% | -$7.87M |
|
1211
PUT
Johnson Controls International
JCI
$87.5B
| $4.54M | ﹤0.01% |
94,900
+30,900
| +48% | +$1.72M |
|
1212
PUT
Sabre
SABR
$656M
| $4.54M | ﹤0.01% |
778,200
+117,400
| +18% | +$980K |
|
1213
PUT
Vodafone
VOD
$34.9B
| $4.51M | ﹤0.01% |
289,400
+123,600
| +75% | +$1.97M |
|
1214
CALL
Bio-Rad Laboratories Class A
BIO
$8.42B
| $4.5M | ﹤0.01% |
9,100
+6,800
| +296% | +$3.54M |
|
1215
CALL
Innovative Industrial Properties
IIPR
$1.78B
| $4.5M | ﹤0.01% |
41,000
+37,300
| +1,008% | +$5.29M |
|
|
Y
1216
PUT
DELISTED
Alleghany Corp
Y
| $4.5M | ﹤0.01% |
5,400
-4,200
| -44% | -$3.51M |
|
|
PPLC
1217
CALL
DELISTED
PortfolioPlus S&P 500 ETF
PPLC
| $4.49M | ﹤0.01% |
525,200
-46,300
| -8% | -$396K |
|
1218
PUT
Cardinal Health
CAH
$53.4B
| $4.48M | ﹤0.01% |
85,800
-60,800
| -41% | -$3.46M |
|
1219
PUT
Chemours
CC
$2.59B
| $4.48M | ﹤0.01% |
139,900
+62,600
| +81% | +$2.3M |
|
1220
Booking.com
BKNG
$138B
| $4.47M | ﹤0.01% |
+63,900
| New | +$5.45M |
|
1221
Lam Research
LRCX
$382B
| $4.47M | ﹤0.01% |
104,900
-211,660
| -67% | -$10.1M |
|
1222
PUT
Dutch Bros
BROS
$8.78B
| $4.45M | ﹤0.01% |
140,700
+103,400
| +277% | +$4.24M |
|
1223
PUT
Advance Auto Parts
AAP
$3.37B
| $4.45M | ﹤0.01% |
25,700
+6,200
| +32% | +$1.23M |
|
|
BBBY
1224
PUT
Bed Bath & Beyond
BBBY
$473M
| $4.44M | ﹤0.01% |
195,470
+103,730
| +113% | +$3.12M |
|
1225
PUT
Coherent
COHR
$55.2B
| $4.44M | ﹤0.01% |
87,200
+59,000
| +209% | +$3.6M |
|
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.