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 | |
|---|---|---|---|---|---|---|
|
MRSH
1151
CALL
Marsh
MRSH
$86.3B
| $4.98M | 0.01% |
32,100
+12,100
| +61% | +$1.94M |
|
1152
PUT
RingCentral
RNG
$4.05B
| $4.98M | 0.01% |
95,300
+58,900
| +162% | +$4.47M |
|
1153
CALL
dLocal
DLO
$4.26B
| $4.98M | 0.01% |
189,700
+78,900
| +71% | +$2.02M |
|
1154
PUT
Wolfspeed
WOLF
$1.2B
| $4.97M | 0.01% |
78,400
+25,400
| +48% | +$2.11M |
|
1155
PUT
American Water Works
AWK
$26.3B
| $4.94M | 0.01% |
33,200
+21,600
| +186% | +$3.29M |
|
1156
CALL
Tapestry
TPR
$28.8B
| $4.9M | 0.01% |
160,500
+126,700
| +375% | +$4.15M |
|
1157
CALL
Ovintiv
OVV
$17.5B
| $4.9M | 0.01% |
110,800
+52,600
| +90% | +$2.71M |
|
|
NVMI
1158
PUT
Nova
NVMI
$13.9B
| $4.89M | 0.01% |
55,200
+46,500
| +534% | +$4.63M |
|
1159
Direxion Daily Junior Gold Miners Index Bear 2X ETF
JDST
$30.4M
| $4.88M | 0.01% |
1,749
+1,238
| +242% | +$2.36M |
|
1160
PUT
ChargePoint
CHPT
$133M
| $4.87M | 0.01% |
17,785
-1,965
| -10% | -$545K |
|
1161
EOG Resources
EOG
$78B
| $4.87M | 0.01% |
+44,055
| New | +$5.47M |
|
1162
CALL
Citizens Financial Group
CFG
$30.4B
| $4.86M | 0.01% |
136,200
-72,200
| -35% | -$2.85M |
|
1163
PUT
Lear
LEA
$7.19B
| $4.86M | 0.01% |
38,600
-400
| -1% | -$52.8K |
|
1164
Vale
VALE
$62.9B
| $4.86M | 0.01% |
332,094
+30,116
| +10% | +$514K |
|
1165
CALL
Digital Turbine
APPS
$1.02B
| $4.85M | 0.01% |
277,800
+72,400
| +35% | +$1.96M |
|
1166
CALL
argenx
ARGX
$57.4B
| $4.85M | 0.01% |
12,800
+6,100
| +91% | +$1.96M |
|
1167
PUT
Quanta Services
PWR
$93.9B
| $4.84M | 0.01% |
38,600
+23,100
| +149% | +$2.84M |
|
|
CFLT
1168
CALL
DELISTED
Confluent
CFLT
| $4.83M | 0.01% |
208,000
+53,800
| +35% | +$1.45M |
|
1169
CALL
Hewlett Packard
HPE
$63.2B
| $4.83M | 0.01% |
364,500
+113,700
| +45% | +$1.72M |
|
1170
CALL
BioNTech
BNTX
$22.6B
| $4.83M | 0.01% |
32,400
-51,500
| -61% | -$7.87M |
|
1171
PUT
Blue Owl Capital
OWL
$6.39B
| $4.81M | 0.01% |
479,800
+373,400
| +351% | +$4.48M |
|
1172
CALL
PennyMac Financial
PFSI
$4.38B
| $4.8M | 0.01% |
109,900
+18,600
| +20% | +$878K |
|
1173
CALL
KE Holdings
BEKE
$16.8B
| $4.8M | 0.01% |
267,200
-20,400
| -7% | -$287K |
|
|
CLR
1174
PUT
DELISTED
CONTINENTAL RESOURCES INC.
CLR
| $4.8M | 0.01% |
73,400
+2,400
| +3% | +$152K |
|
|
NVO
1175
CALL
Novo Nordisk
NVO
$216B
| $4.77M | 0.01% |
85,600
+27,800
| +48% | +$1.54M |
|
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.