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
|
+$179M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$90.1M |
| 3 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$56M |
| 4 |
iShares Silver Trust
SLV
|
+$41.7M |
| 5 |
Advanced Micro Devices
AMD
|
+$39.8M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street Financial Select Sector SPDR ETF
XLF
|
+$42.8M |
| 2 |
Verizon
VZ
|
+$42.5M |
| 3 |
Occidental Petroleum
OXY
|
+$34.7M |
| 4 |
iShares China Large-Cap ETF
FXI
|
+$33M |
| 5 |
Direxion Daily S&P 500 Bull 3x ETF
SPXL
|
+$32.7M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Miscellaneous | 97.72% |
| 2 | Technology | 0.67% |
| 3 | Consumer Discretionary | 0.38% |
| 4 | Industrials | 0.24% |
| 5 | Healthcare | 0.22% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1451
CALL
Public Storage
PSA
$55.6B
| $3.94M | ﹤0.01% |
10,100
-7,500
| -43% | -$2.72M |
|
1452
PUT
Aflac
AFL
$58.8B
| $3.94M | ﹤0.01% |
61,200
-41,100
| -40% | -$2.57M |
|
1453
CALL
EXL Service
EXLS
$5.55B
| $3.94M | ﹤0.01% |
137,500
+137,000
| +27,400% | +$3.49M |
|
1454
CALL
iShares Convertible Bond ETF
ICVT
$7.89B
| $3.94M | ﹤0.01% |
117,400
+46,700
| +66% | +$3.87M |
|
1455
PUT
Transocean
RIG
$6.53B
| $3.94M | ﹤0.01% |
861,400
+288,100
| +50% | +$1.1M |
|
1456
UiPath
PATH
$7.87B
| $3.93M | ﹤0.01% |
181,870
+137,669
| +311% | +$4.64M |
|
|
FRC
1457
PUT
DELISTED
First Republic Bank
FRC
| $3.92M | ﹤0.01% |
24,200
+1,900
| +9% | +$332K |
|
|
VSTO
1458
DELISTED
Vista Outdoor Inc.
VSTO
| $3.92M | ﹤0.01% |
+109,835
| New | +$4.25M |
|
1459
PUT
iQIYI
IQ
$849M
| $3.91M | ﹤0.01% |
861,200
+257,900
| +43% | +$1.08M |
|
1460
Deutsche Bank
DB
$77.7B
| $3.91M | ﹤0.01% |
308,947
+299,008
| +3,008% | +$3.98M |
|
1461
CALL
F5
FFIV
$22.1B
| $3.91M | ﹤0.01% |
18,700
-300
| -2% | -$63K |
|
1462
CALL
Cincinnati Financial
CINF
$26.3B
| $3.9M | ﹤0.01% |
28,700
-9,600
| -25% | -$1.18M |
|
1463
PUT
Westlake Corp
WLK
$9.56B
| $3.9M | ﹤0.01% |
31,600
+9,300
| +42% | +$1.01M |
|
|
EMBJ
1464
PUT
Embraer S.A. ADS
EMBJ
$13.1B
| $3.89M | ﹤0.01% |
308,800
+192,100
| +165% | +$2.73M |
|
1465
PUT
Flex
FLEX
$40.5B
| $3.89M | ﹤0.01% |
278,007
+246,822
| +791% | +$3.15M |
|
1466
PUT
Scorpio Tankers
STNG
$4.12B
| $3.88M | ﹤0.01% |
181,700
+102,000
| +128% | +$1.63M |
|
|
HZNP
1467
CALL
DELISTED
Horizon Therapeutics Public Limited Company Ordinary Shares
HZNP
| $3.88M | ﹤0.01% |
36,900
+15,300
| +71% | +$1.49M |
|
1468
CALL
MBIA
MBI
$243M
| $3.88M | ﹤0.01% |
252,200
+222,600
| +752% | +$3.28M |
|
1469
CALL
PureCycle Technologies
PCT
$1.28B
| $3.88M | ﹤0.01% |
485,200
+375,700
| +343% | +$2.74M |
|
|
OSH
1470
CALL
DELISTED
Oak Street Health, Inc.
OSH
| $3.88M | ﹤0.01% |
144,200
+129,000
| +849% | +$2.72M |
|
1471
CALL
Sibanye-Stillwater
SBSW
$9.05B
| $3.87M | ﹤0.01% |
238,500
+110,400
| +86% | +$1.79M |
|
1472
iShares Russell 2000 Value ETF
IWN
$14.6B
| $3.87M | ﹤0.01% |
23,974
+23,967
| +342,386% | +$3.82M |
|
1473
PUT
Ross Stores
ROST
$73.7B
| $3.86M | ﹤0.01% |
42,700
-20,500
| -32% | -$1.95M |
|
1474
CALL
Corpay
CPAY
$27.3B
| $3.86M | ﹤0.01% |
15,500
-23,900
| -61% | -$5.66M |
|
1475
PUT
FMC
FMC
$1.62B
| $3.85M | ﹤0.01% |
29,300
-9,000
| -23% | -$1.06M |
|
Similar funds
Simplex Trading's Q1 2022 Portfolio in Review
As of Q1 2022, Simplex Trading held 12,038 positions worth $109B, up 10% from $99B the previous quarter. Its ten largest holdings account for 37% of the portfolio.
Simplex Trading's Q1 2022 filing shows 1,600 new, 4,440 increased, 4,085 reduced and 1,638 closed positions. Its largest new stake was iShares 20+ Year Treasury Bond ETF: 652,921 shares worth $86.2M. The largest sale was State Street Financial Select Sector SPDR ETF, an estimated $42.8M.
By sector, the portfolio is most concentrated in Miscellaneous at 98% of assets, up from 97% a quarter earlier, followed by Technology and Consumer Discretionary.
- Simplex Trading's largest Q1 2022 buy was iShares 20+ Year Treasury Bond ETF: 652,921 shares worth $86.2M.
- Simplex Trading added most to Apple in Q1 2022, an estimated $179M increase.
- Simplex Trading's biggest Q1 2022 reduction was Verizon, cutting an estimated $42.5M.
- Simplex Trading fully exited State Street Financial Select Sector SPDR ETF in Q1 2022, selling an estimated $42.8M.
- Simplex Trading's ten largest holdings make up 37% of its $109B portfolio in Q1 2022.
- Simplex Trading opened 1,600 new positions and closed 1,638 in Q1 2022.
- Simplex Trading's portfolio value rose 10% quarter-over-quarter to $109B.
Based on Simplex Trading's 13F filing for Q1 2022, filed 2 May 2022.