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 | |
|---|---|---|---|---|---|---|
726
CALL
BHP
BHP
$230B
| $12.4M | 0.01% |
180,369
+35,199
| +24% | +$2.14M |
|
727
PUT
Peabody Energy
BTU
$3.52B
| $12.4M | 0.01% |
506,400
+296,700
| +141% | +$5.03M |
|
728
PUT
KLA
KLAC
$242B
| $12.4M | 0.01% |
339,000
-163,000
| -32% | -$6.1M |
|
729
CALL
Prudential Financial
PRU
$42.1B
| $12.4M | 0.01% |
105,000
-24,500
| -19% | -$2.79M |
|
730
PUT
Ameriprise Financial
AMP
$49.5B
| $12.4M | 0.01% |
41,300
+31,600
| +326% | +$9.56M |
|
731
PUT
Cheniere Energy
LNG
$60.3B
| $12.4M | 0.01% |
89,300
+9,800
| +12% | +$1.19M |
|
732
CALL
British American Tobacco
BTI
$119B
| $12.4M | 0.01% |
293,600
+182,600
| +165% | +$7.78M |
|
733
CALL
Paychex
PAYX
$43.3B
| $12.4M | 0.01% |
90,700
-9,100
| -9% | -$1.12M |
|
734
PUT
Energy Transfer Partners
ET
$74B
| $12.3M | 0.01% |
1,097,400
+463,700
| +73% | +$4.6M |
|
735
CALL
Bath & Body Works
BBWI
$3.93B
| $12.3M | 0.01% |
256,600
+81,800
| +47% | +$4.41M |
|
736
CALL
Philips
PHG
$25.3B
| $12.2M | 0.01% |
485,459
+413,064
| +571% | +$11.3M |
|
737
PUT
Fortinet
FTNT
$115B
| $12.2M | 0.01% |
179,000
+36,500
| +26% | +$2.27M |
|
738
RH
RH
$2.8B
| $12.2M | 0.01% |
+37,512
| New | +$15M |
|
|
HIMX
739
CALL
Himax Technologies
HIMX
$2.39B
| $12.2M | 0.01% |
1,125,800
+566,600
| +101% | +$6.46M |
|
740
PUT
TJX Companies
TJX
$145B
| $12.2M | 0.01% |
201,800
+93,700
| +87% | +$6.27M |
|
741
CALL
SentinelOne
S
$6.92B
| $12.2M | 0.01% |
315,200
+219,400
| +229% | +$8.97M |
|
742
PUT
Bausch Health
BHC
$2.45B
| $12.2M | 0.01% |
533,200
+206,300
| +63% | +$5.04M |
|
743
PUT
Steel Dynamics
STLD
$34.7B
| $12.1M | 0.01% |
144,900
+69,500
| +92% | +$4.69M |
|
744
PUT
CSX Corp
CSX
$91.5B
| $12.1M | 0.01% |
322,200
+64,400
| +25% | +$2.28M |
|
745
CALL
AutoZone
AZO
$48.7B
| $12.1M | 0.01% |
5,900
-56,200
| -90% | -$110M |
|
746
CALL
Bilibili
BILI
$6.37B
| $12M | 0.01% |
470,000
+160,600
| +52% | +$5.17M |
|
|
NXH
747
CALL
Neighborhood Intelligence Inc
NXH
$377M
| $12M | 0.01% |
300,300
+202,070
| +206% | +$8.98M |
|
748
Medtronic
MDT
$120B
| $12M | 0.01% |
108,226
-130,574
| -55% | -$13.8M |
|
749
PUT
Darden Restaurants
DRI
$24.6B
| $12M | 0.01% |
90,300
-16,300
| -15% | -$2.25M |
|
750
CALL
Sunrun
RUN
$2.14B
| $12M | 0.01% |
394,600
-237,600
| -38% | -$6.63M |
|
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.