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 | |
|---|---|---|---|---|---|---|
1476
CALL
Elastic
ESTC
$6.1B
| $3.09M | ﹤0.01% |
45,700
+20,700
| +83% | +$1.51M |
|
1477
PUT
Flex
FLEX
$43.4B
| $3.09M | ﹤0.01% |
283,580
+5,573
| +2% | +$69K |
|
1478
CALL
Amplify Online Retail ETF
IBUY
$106M
| $3.09M | ﹤0.01% |
169,800
+91,400
| +117% | +$4.67M |
|
1479
PUT
Regions Financial
RF
$26.3B
| $3.09M | ﹤0.01% |
164,800
-188,200
| -53% | -$3.88M |
|
1480
PUT
SL Green Realty
SLG
$3.88B
| $3.09M | ﹤0.01% |
66,900
+55,900
| +508% | +$3.56M |
|
1481
CALL
Stryker
SYK
$127B
| $3.08M | ﹤0.01% |
15,500
-14,300
| -48% | -$3.36M |
|
1482
CALL
HCA Healthcare
HCA
$84.8B
| $3.08M | ﹤0.01% |
18,300
-38,400
| -68% | -$8.25M |
|
|
SIX
1483
CALL
DELISTED
Six Flags Entertainment Corp.
SIX
| $3.07M | ﹤0.01% |
141,700
+78,500
| +124% | +$2.5M |
|
1484
CALL
CoStar Group
CSGP
$11.3B
| $3.07M | ﹤0.01% |
50,800
-20,300
| -29% | -$1.23M |
|
1485
CALL
Takeda Pharmaceutical
TAK
$55.1B
| $3.06M | ﹤0.01% |
218,100
+8,300
| +4% | +$118K |
|
1486
CALL
Baker Hughes
BKR
$56.8B
| $3.06M | ﹤0.01% |
106,000
-19,400
| -15% | -$656K |
|
1487
CALL
Honda
HMC
$36.5B
| $3.04M | ﹤0.01% |
126,100
+99,300
| +371% | +$2.54M |
|
1488
CALL
International Paper
IP
$22.3B
| $3.04M | ﹤0.01% |
72,900
-105,900
| -59% | -$4.91M |
|
1489
Amylyx Pharmaceuticals
AMLX
$2.05B
| $3.04M | ﹤0.01% |
158,090
+152,892
| +2,941% | +$1.82M |
|
1490
CALL
Eastman Chemical
EMN
$7.8B
| $3.04M | ﹤0.01% |
33,900
+16,300
| +93% | +$1.69M |
|
|
SI
1491
CALL
DELISTED
Silvergate Capital Corporation
SI
| $3.03M | ﹤0.01% |
56,600
+28,300
| +100% | +$2.64M |
|
1492
United Parks & Resorts
PRKS
$2.11B
| $3.03M | ﹤0.01% |
68,557
+42,771
| +166% | +$2.49M |
|
1493
PUT
JetBlue
JBLU
$1.96B
| $3.02M | ﹤0.01% |
361,500
+35,200
| +11% | +$376K |
|
1494
CALL
Idexx Laboratories
IDXX
$42.9B
| $3.02M | ﹤0.01% |
8,600
+5,600
| +187% | +$2.28M |
|
1495
CALL
Omnicell
OMCL
$1.86B
| $3.01M | ﹤0.01% |
26,500
+25,700
| +3,213% | +$2.95M |
|
1496
PUT
First Trust Consumer Discretionary AlphaDEX Fund
FXD
$263M
| $3M | ﹤0.01% |
69,000
+43,600
| +172% | +$2.18M |
|
1497
PUT
Alnylam Pharmaceuticals
ALNY
$36.3B
| $3M | ﹤0.01% |
20,600
-5,100
| -20% | -$724K |
|
1498
CALL
Jackson Financial
JXN
$8.32B
| $3M | ﹤0.01% |
112,200
+106,700
| +1,940% | +$3.89M |
|
|
SIVB
1499
CALL
DELISTED
SVB Financial Group
SIVB
| $3M | ﹤0.01% |
7,600
-13,400
| -64% | -$6.31M |
|
1500
PUT
Relmada Therapeutics
RLMD
$544M
| $3M | ﹤0.01% |
157,900
+105,400
| +201% | +$2.3M |
|
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.