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 | |
|---|---|---|---|---|---|---|
1301
CALL
Algonquin Power & Utilities
AQN
$4.37B
| $4.66M | ﹤0.01% |
300,300
+284,400
| +1,789% | +$4.1M |
|
1302
PUT
Centene
CNC
$33.1B
| $4.66M | ﹤0.01% |
55,300
-169,800
| -75% | -$13.9M |
|
|
HBI
1303
CALL
DELISTED
Hanesbrands
HBI
| $4.65M | ﹤0.01% |
312,600
+242,000
| +343% | +$3.81M |
|
|
NEWR
1304
PUT
DELISTED
New Relic, Inc.
NEWR
| $4.65M | ﹤0.01% |
69,600
+54,100
| +349% | +$4.43M |
|
1305
PUT
Universal Health Services
UHS
$10B
| $4.65M | ﹤0.01% |
32,100
+8,500
| +36% | +$1.18M |
|
1306
American Express
AXP
$220B
| $4.63M | ﹤0.01% |
+24,769
| New | +$4.47M |
|
1307
PUT
Waters Corp
WAT
$40.2B
| $4.62M | ﹤0.01% |
14,900
-3,500
| -19% | -$1.14M |
|
1308
CALL
Chubb
CB
$132B
| $4.62M | ﹤0.01% |
21,600
-22,200
| -51% | -$4.51M |
|
1309
PUT
CRISPR Therapeutics
CRSP
$5.39B
| $4.61M | ﹤0.01% |
73,500
-700
| -0.9% | -$44K |
|
|
FTCH
1310
PUT
DELISTED
Farfetch Limited Class A Ordinary Shares
FTCH
| $4.61M | ﹤0.01% |
305,000
+70,100
| +30% | +$1.36M |
|
1311
PUT
Sibanye-Stillwater
SBSW
$9.05B
| $4.61M | ﹤0.01% |
284,000
+127,200
| +81% | +$2.06M |
|
1312
CALL
Stratasys
SSYS
$701M
| $4.61M | ﹤0.01% |
181,400
-67,500
| -27% | -$1.63M |
|
1313
CALL
Service Corp International
SCI
$11.2B
| $4.6M | ﹤0.01% |
69,900
+40,800
| +140% | +$2.57M |
|
|
CTRA
1314
CALL
DELISTED
Coterra Energy
CTRA
| $4.6M | ﹤0.01% |
170,500
-77,600
| -31% | -$1.81M |
|
1315
XPeng
XPEV
$10.5B
| $4.59M | ﹤0.01% |
166,435
+91,317
| +122% | +$3.24M |
|
1316
PUT
Star Bulk Carriers
SBLK
$3.62B
| $4.59M | ﹤0.01% |
154,600
+94,700
| +158% | +$2.48M |
|
1317
CALL
Fiverr
FVRR
$333M
| $4.58M | ﹤0.01% |
60,200
-21,000
| -26% | -$1.66M |
|
1318
CALL
Nu Holdings
NU
$74.2B
| $4.58M | ﹤0.01% |
593,200
+517,600
| +685% | +$4.15M |
|
1319
CALL
Crocs
CROX
$5.63B
| $4.58M | ﹤0.01% |
59,900
-119,900
| -67% | -$11.3M |
|
1320
CALL
Louisiana-Pacific
LPX
$4.77B
| $4.57M | ﹤0.01% |
73,600
+53,300
| +263% | +$3.67M |
|
1321
Danaher
DHR
$146B
| $4.57M | ﹤0.01% |
17,576
+10,661
| +154% | +$2.67M |
|
1322
CALL
Baker Hughes
BKR
$63B
| $4.57M | ﹤0.01% |
125,400
+11,200
| +10% | +$340K |
|
1323
CALL
Vertiv
VRT
$108B
| $4.56M | ﹤0.01% |
326,000
+259,500
| +390% | +$4.61M |
|
1324
Ventas
VTR
$46.3B
| $4.56M | ﹤0.01% |
73,905
+27,344
| +59% | +$1.49M |
|
1325
PUT
International Flavors & Fragrances
IFF
$22B
| $4.56M | ﹤0.01% |
34,700
+27,000
| +351% | +$3.59M |
|
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.