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 | |
|---|---|---|---|---|---|---|
|
HOLX
1101
CALL
DELISTED
Hologic
HOLX
| $5.45M | 0.01% |
78,600
+8,400
| +12% | +$624K |
|
1102
CALL
Dynatrace
DT
$12.1B
| $5.44M | 0.01% |
137,900
-44,500
| -24% | -$1.77M |
|
1103
CALL
Silicon Motion
SIMO
$9.19B
| $5.42M | 0.01% |
64,800
+60,700
| +1,480% | +$5.11M |
|
1104
CALL
Cognizant
CTSH
$21.5B
| $5.41M | 0.01% |
80,200
-15,700
| -16% | -$1.2M |
|
1105
CALL
Ross Stores
ROST
$76.6B
| $5.41M | 0.01% |
77,000
+28,800
| +60% | +$2.56M |
|
1106
PUT
Live Nation Entertainment
LYV
$41.2B
| $5.4M | 0.01% |
65,400
-13,000
| -17% | -$1.25M |
|
1107
iShares JPMorgan USD Emerging Markets Bond ETF
EMB
$14.9B
| $5.39M | 0.01% |
63,158
+29,466
| +87% | +$2.66M |
|
|
SHNY
1108
PUT
DELISTED
Direxion Daily Silver Miners Index Bull 2X Shares
SHNY
| $5.39M | 0.01% |
149,400
-338,400
| -69% | -$12.2M |
|
1109
CALL
Star Bulk Carriers
SBLK
$3.14B
| $5.38M | 0.01% |
215,100
+81,600
| +61% | +$2.37M |
|
1110
CALL
VICI Properties
VICI
$29.4B
| $5.37M | 0.01% |
180,400
-91,600
| -34% | -$2.7M |
|
1111
CALL
PENN Entertainment
PENN
$2.74B
| $5.36M | 0.01% |
176,100
-182,600
| -51% | -$6.16M |
|
1112
PUT
State Street
STT
$50.9B
| $5.35M | 0.01% |
86,800
+73,000
| +529% | +$5.16M |
|
1113
CALL
SentinelOne
S
$6.22B
| $5.35M | 0.01% |
229,300
-85,900
| -27% | -$2.41M |
|
1114
CALL
Stellantis
STLA
$16.5B
| $5.34M | 0.01% |
432,100
-69,600
| -14% | -$984K |
|
1115
CALL
T. Rowe Price
TROW
$25B
| $5.34M | 0.01% |
47,000
+7,400
| +19% | +$941K |
|
1116
PUT
Williams-Sonoma
WSM
$26.7B
| $5.34M | 0.01% |
96,200
-2,000
| -2% | -$129K |
|
1117
CALL
Sprott Uranium Miners ETF
URNM
$1.78B
| $5.33M | 0.01% |
+186,400
| New | +$6.6M |
|
1118
PUT
Kulicke & Soffa
KLIC
$5.3B
| $5.32M | 0.01% |
124,200
+108,600
| +696% | +$5.38M |
|
|
LAC
1119
CALL
DELISTED
Lithium Americas Corp. Common Shares
LAC
| $5.3M | 0.01% |
263,300
-40,000
| -13% | -$1.02M |
|
1120
PUT
Tradeweb Markets
TW
$21.3B
| $5.29M | 0.01% |
77,500
+20,600
| +36% | +$1.5M |
|
1121
CALL
Ciena
CIEN
$55.3B
| $5.28M | 0.01% |
115,600
+81,600
| +240% | +$4.23M |
|
1122
PUT
Crown Holdings
CCK
$12.8B
| $5.28M | 0.01% |
57,300
+45,600
| +390% | +$4.87M |
|
1123
CALL
Gartner
IT
$9.41B
| $5.27M | 0.01% |
21,800
-3,900
| -15% | -$1.04M |
|
|
CTRA
1124
PUT
DELISTED
Coterra Energy
CTRA
| $5.27M | 0.01% |
204,300
+45,700
| +29% | +$1.39M |
|
1125
PUT
Omnicom Group
OMC
$22.7B
| $5.25M | 0.01% |
82,600
+71,300
| +631% | +$5.28M |
|
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.