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 | |
|---|---|---|---|---|---|---|
|
TTM.RT
1851
PUT
DELISTED
TATA MOTORS LIMITED RT PUR ADR
TTM.RT
| $2.55M | ﹤0.01% |
91,400
-74,700
| -45% | -$2.09M |
|
|
BNY
1852
CALL
Bank of New York Mellon
BNY
$108B
| $2.55M | ﹤0.01% |
51,400
-113,800
| -69% | -$6.47M |
|
1853
PUT
Oneok
OKE
$58.7B
| $2.54M | ﹤0.01% |
36,000
-37,300
| -51% | -$2.39M |
|
|
CUTR
1854
DELISTED
Cutera, Inc.
CUTR
| $2.54M | ﹤0.01% |
+36,847
| New | +$1.49M |
|
|
CERN
1855
DELISTED
Cerner Corp
CERN
| $2.54M | ﹤0.01% |
27,166
+2,063
| +8% | +$191K |
|
|
ZEV
1856
CALL
DELISTED
Lightning eMotors, Inc.
ZEV
| $2.54M | ﹤0.01% |
22,275
+16,470
| +284% | +$1.77M |
|
|
NLSN
1857
CALL
DELISTED
Nielsen Holdings plc
NLSN
| $2.54M | ﹤0.01% |
93,200
-13,000
| -12% | -$258K |
|
1858
PUT
Synaptics
SYNA
$4.41B
| $2.53M | ﹤0.01% |
12,700
+10,600
| +505% | +$2.35M |
|
|
SAFE
1859
CALL
Safehold
SAFE
$1.19B
| $2.53M | ﹤0.01% |
22,188
+11,053
| +99% | +$1.29M |
|
|
SAGE
1860
PUT
DELISTED
Sage Therapeutics
SAGE
| $2.53M | ﹤0.01% |
76,400
+2,700
| +4% | +$102K |
|
1861
CALL
First Trust Consumer Discretionary AlphaDEX Fund
FXD
$263M
| $2.53M | ﹤0.01% |
35,500
-14,600
| -29% | -$830K |
|
1862
CALL
Asana
ASAN
$1.58B
| $2.53M | ﹤0.01% |
63,200
-35,900
| -36% | -$1.87M |
|
1863
Nokia
NOK
$50.8B
| $2.52M | ﹤0.01% |
+462,168
| New | +$2.56M |
|
|
DAY
1864
PUT
DELISTED
Dayforce
DAY
| $2.52M | ﹤0.01% |
36,900
-22,600
| -38% | -$1.67M |
|
1865
CALL
Equinix
EQIX
$107B
| $2.52M | ﹤0.01% |
3,400
+1,600
| +89% | +$1.15M |
|
1866
PUT
SandRidge Energy
SD
$510M
| $2.52M | ﹤0.01% |
157,200
+97,200
| +162% | +$1.25M |
|
1867
Direxion Daily FTSE China Bull 3X ETF
YINN
$660M
| $2.52M | ﹤0.01% |
27,255
+20,501
| +304% | +$2.98M |
|
1868
PUT
American Eagle Outfitters
AEO
$2.85B
| $2.52M | ﹤0.01% |
149,800
-1,300
| -0.9% | -$27.5K |
|
1869
PUT
Vulcan Materials
VMC
$36.3B
| $2.52M | ﹤0.01% |
13,700
+1,700
| +14% | +$317K |
|
1870
PUT
Helmerich & Payne
HP
$3.53B
| $2.52M | ﹤0.01% |
58,800
+3,100
| +6% | +$107K |
|
1871
CALL
Equity Residential
EQR
$25.4B
| $2.51M | ﹤0.01% |
27,900
+11,400
| +69% | +$1.01M |
|
1872
CALL
WIX.com
WIX
$2.15B
| $2.51M | ﹤0.01% |
24,000
-7,300
| -23% | -$797K |
|
|
KZR
1873
CALL
DELISTED
Kezar Life Sciences
KZR
| $2.5M | ﹤0.01% |
15,070
+13,730
| +1,025% | +$1.97M |
|
|
BAND
1874
CALL
Bandwidth Inc
BAND
$1.91B
| $2.49M | ﹤0.01% |
77,000
+70,300
| +1,049% | +$3.37M |
|
|
NNDM
1875
PUT
Nano Dimension
NNDM
$309M
| $2.49M | ﹤0.01% |
700,600
+52,800
| +8% | +$190K |
|
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.