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 | Technology | 0.67% |
| 2 | Consumer Discretionary | 0.37% |
| 3 | Industrials | 0.24% |
| 4 | Healthcare | 0.22% |
| 5 | Financials | 0.19% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
RETA
1251
PUT
DELISTED
Reata Pharmaceuticals, Inc. Class A Common Stock
RETA
| $4.93M | ﹤0.01% |
150,500
+120,500
| +402% | +$3.58M |
|
1252
CALL
Canadian Imperial Bank of Commerce
CM
$106B
| $4.93M | ﹤0.01% |
81,000
+18,600
| +30% | +$1.17M |
|
1253
PUT
FuelCell Energy
FCEL
$1.86B
| $4.93M | ﹤0.01% |
28,513
-14,227
| -33% | -$2.25M |
|
1254
PUT
Methanex
MEOH
$4.49B
| $4.92M | ﹤0.01% |
90,200
-14,200
| -14% | -$694K |
|
1255
PUT
Euronet Worldwide
EEFT
$2.94B
| $4.92M | ﹤0.01% |
37,800
+11,900
| +46% | +$1.51M |
|
1256
Stellantis
STLA
$16.7B
| $4.91M | ﹤0.01% |
301,948
+160,254
| +113% | +$2.93M |
|
1257
PUT
Thor Industries
THO
$3.9B
| $4.91M | ﹤0.01% |
62,400
-47,900
| -43% | -$4.4M |
|
1258
CALL
Ventas
VTR
$47.6B
| $4.9M | ﹤0.01% |
79,300
+59,800
| +307% | +$3.27M |
|
1259
CALL
State Street
STT
$50.6B
| $4.9M | ﹤0.01% |
56,200
+23,900
| +74% | +$2.21M |
|
1260
PUT
Ally Financial
ALLY
$13.4B
| $4.89M | ﹤0.01% |
112,500
-90,000
| -44% | -$4.25M |
|
1261
iShares MSCI Emerging Markets ETF
EEM
$28.6B
| $4.89M | ﹤0.01% |
+108,275
| New | +$5.11M |
|
|
GTM
1262
PUT
ZoomInfo Technologies
GTM
$849M
| $4.89M | ﹤0.01% |
81,800
-42,500
| -34% | -$2.28M |
|
1263
PUT
Fiverr
FVRR
$370M
| $4.88M | ﹤0.01% |
64,200
-14,700
| -19% | -$1.17M |
|
1264
PUT
Manchester United
MANU
$3.85B
| $4.88M | ﹤0.01% |
337,200
+293,600
| +673% | +$4M |
|
1265
PUT
JetBlue
JBLU
$1.86B
| $4.88M | ﹤0.01% |
326,300
-27,800
| -8% | -$403K |
|
|
NVRO
1266
CALL
DELISTED
NEVRO CORP.
NVRO
| $4.86M | ﹤0.01% |
67,200
+34,000
| +102% | +$2.45M |
|
1267
CALL
PennyMac Financial
PFSI
$4.29B
| $4.86M | ﹤0.01% |
91,300
+28,800
| +46% | +$1.74M |
|
1268
CALL
BioCryst Pharmaceuticals
BCRX
$2.38B
| $4.86M | ﹤0.01% |
298,700
+115,300
| +63% | +$1.85M |
|
1269
PUT
Jazz Pharmaceuticals
JAZZ
$16B
| $4.84M | ﹤0.01% |
31,100
-1,300
| -4% | -$189K |
|
1270
PUT
Ferrari
RACE
$63.2B
| $4.84M | ﹤0.01% |
22,200
+15,900
| +252% | +$3.55M |
|
1271
PUT
Arista Networks
ANET
$222B
| $4.84M | ﹤0.01% |
139,200
-154,000
| -53% | -$4.87M |
|
1272
PUT
Duke Energy
DUK
$101B
| $4.83M | ﹤0.01% |
43,300
-92,000
| -68% | -$9.56M |
|
1273
GSK
GSK
$102B
| $4.83M | ﹤0.01% |
88,679
+58,613
| +195% | +$3.18M |
|
1274
Zimmer Biomet
ZBH
$17.3B
| $4.83M | ﹤0.01% |
+37,730
| New | +$4.55M |
|
1275
PUT
ICICI Bank
IBN
$105B
| $4.81M | ﹤0.01% |
254,200
+35,100
| +16% | +$701K |
|
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 deployed $17.5B of net new capital in Q1 2022, opening 1,603 new positions and adding to 4,441 existing holdings. Its largest new stake was iShares 20+ Year Treasury Bond ETF: 652,921 shares worth $86.2M.
By sector, the portfolio is most concentrated in Technology at 0.67% of assets, up from 0.61% a quarter earlier, followed by Consumer Discretionary and Industrials.
On the sell side, the largest reduction was Verizon, an estimated $42.5M trimmed.
- 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 1,603 new positions and closed 1,637 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.