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 | |
|---|---|---|---|---|---|---|
851
PUT
GSK
GSK
$102B
| $9.84M | 0.01% |
180,640
+20,720
| +13% | +$1.13M |
|
852
Procter & Gamble
PG
$342B
| $9.84M | 0.01% |
64,366
+11,938
| +23% | +$1.87M |
|
853
PUT
Williams Companies
WMB
$92B
| $9.84M | 0.01% |
294,400
+256,900
| +685% | +$7.85M |
|
854
CALL
Peabody Energy
BTU
$2.9B
| $9.82M | 0.01% |
400,300
+166,000
| +71% | +$2.81M |
|
855
CALL
STMicroelectronics
STM
$47.7B
| $9.78M | 0.01% |
226,200
+138,800
| +159% | +$6.13M |
|
856
CALL
National Grid
NGG
$82B
| $9.76M | 0.01% |
141,181
+121,282
| +609% | +$8.04M |
|
857
BILL Holdings
BILL
$4.11B
| $9.69M | 0.01% |
42,720
+24,696
| +137% | +$5.15M |
|
858
Las Vegas Sands
LVS
$30.5B
| $9.6M | 0.01% |
246,948
-125,090
| -34% | -$5.19M |
|
859
CALL
Corteva
CTVA
$59.4B
| $9.57M | 0.01% |
166,500
+142,900
| +606% | +$7.3M |
|
860
CALL
Fortinet
FTNT
$111B
| $9.57M | 0.01% |
140,000
+18,500
| +15% | +$1.15M |
|
|
GGPI
861
CALL
DELISTED
Gores Guggenheim, Inc. Class A Common Stock
GGPI
| $9.54M | 0.01% |
839,400
-130,800
| -13% | -$1.45M |
|
862
PUT
Pan American Silver
PAAS
$18.6B
| $9.54M | 0.01% |
349,500
+75,000
| +27% | +$1.85M |
|
|
BHVN
863
PUT
DELISTED
Biohaven Pharmaceutical Holding Company Ltd.
BHVN
| $9.53M | 0.01% |
80,400
-29,200
| -27% | -$3.64M |
|
864
PUT
UiPath
PATH
$5.28B
| $9.53M | 0.01% |
441,400
+292,400
| +196% | +$9.85M |
|
865
PUT
NCR Voyix
VYX
$1.05B
| $9.5M | 0.01% |
385,332
+312,797
| +431% | +$7.69M |
|
866
CALL
Citizens Financial Group
CFG
$30.3B
| $9.45M | 0.01% |
208,400
+61,700
| +42% | +$3.17M |
|
|
COOP
867
PUT
DELISTED
Mr. Cooper
COOP
| $9.41M | 0.01% |
206,000
+92,000
| +81% | +$4.18M |
|
868
CALL
FIVE9
FIVN
$1.67B
| $9.41M | 0.01% |
85,200
-6,700
| -7% | -$780K |
|
869
CALL
Darden Restaurants
DRI
$22.2B
| $9.39M | 0.01% |
70,600
+23,600
| +50% | +$3.26M |
|
|
FLNA
870
PUT
Filana Therapeutics
FLNA
$45M
| $9.36M | 0.01% |
251,900
+89,500
| +55% | +$3.79M |
|
871
PUT
Tilray
TLRY
$493M
| $9.34M | 0.01% |
120,270
-3,110
| -3% | -$195K |
|
872
PUT
Phillips 66
PSX
$83B
| $9.32M | 0.01% |
107,900
-54,600
| -34% | -$4.59M |
|
873
PUT
Danaos Corp
DAC
$2.5B
| $9.3M | 0.01% |
90,700
+23,600
| +35% | +$2.15M |
|
874
PUT
KE Holdings
BEKE
$17.8B
| $9.28M | 0.01% |
750,200
+113,800
| +18% | +$2.03M |
|
875
CALL
Canadian Solar
CSIQ
$997M
| $9.26M | 0.01% |
261,900
+122,900
| +88% | +$3.71M |
|
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.