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 | |
|---|---|---|---|---|---|---|
1901
PUT
Chemours
CC
$2.33B
| $2.43M | ﹤0.01% |
77,300
-100
| -0.1% | -$3.13K |
|
1902
Canadian Solar
CSIQ
$944M
| $2.43M | ﹤0.01% |
68,803
+21,042
| +44% | +$635K |
|
1903
CALL
Itaú Unibanco
ITUB
$92B
| $2.43M | ﹤0.01% |
583,835
-346,925
| -37% | -$1.46M |
|
1904
PUT
Vroom Inc
VRM
$53.7M
| $2.43M | ﹤0.01% |
11,425
+9,872
| +636% | +$4.68M |
|
1905
CALL
BioMarin Pharmaceuticals
BMRN
$12.6B
| $2.43M | ﹤0.01% |
31,500
-15,800
| -33% | -$1.32M |
|
|
CDK
1906
DELISTED
CDK Global, Inc.
CDK
| $2.43M | ﹤0.01% |
+49,858
| New | +$2.23M |
|
1907
CALL
Carriage Services
CSV
$528M
| $2.42M | ﹤0.01% |
45,400
-18,200
| -29% | -$960K |
|
|
XM
1908
CALL
DELISTED
Qualtrics International Inc. Class A Common Stock
XM
| $2.42M | ﹤0.01% |
84,700
+67,700
| +398% | +$1.96M |
|
1909
PUT
Hertz
HTZ
$781M
| $2.42M | ﹤0.01% |
196,900
+33,600
| +21% | +$706K |
|
|
GOOS
1910
CALL
Canada Goose Holdings
GOOS
$758M
| $2.41M | ﹤0.01% |
91,700
+44,300
| +93% | +$1.27M |
|
1911
PUT
Franco-Nevada
FNV
$51B
| $2.41M | ﹤0.01% |
15,100
-16,600
| -52% | -$2.39M |
|
1912
Honeywell
HON
$65.9B
| $2.41M | ﹤0.01% |
13,127
-7,718
| -37% | -$1.43M |
|
|
LONA
1913
PUT
LeonaBio Inc
LONA
$74.6M
| $2.4M | ﹤0.01% |
17,810
+15,820
| +795% | +$1.67M |
|
1914
PUT
RUM Group Inc
RUM
$4.19B
| $2.4M | ﹤0.01% |
202,600
+188,200
| +1,307% | +$2.34M |
|
1915
iShares TIPS Bond ETF
TIP
$14.9B
| $2.4M | ﹤0.01% |
19,303
+19,148
| +12,354% | +$2.41M |
|
1916
CALL
Macerich
MAC
$6.69B
| $2.4M | ﹤0.01% |
153,400
+23,900
| +18% | +$383K |
|
1917
PUT
Plains All American Pipeline
PAA
$18.3B
| $2.4M | ﹤0.01% |
222,800
+130,300
| +141% | +$1.4M |
|
1918
Fiverr
FVRR
$324M
| $2.4M | ﹤0.01% |
31,509
+5,802
| +23% | +$460K |
|
|
TGH
1919
DELISTED
Textainer Group Holdings limited
TGH
| $2.4M | ﹤0.01% |
62,954
+54,959
| +687% | +$2.08M |
|
1920
Gen Digital
GEN
$17.8B
| $2.4M | ﹤0.01% |
+90,337
| New | +$2.48M |
|
1921
CALL
Tanger
SKT
$4.27B
| $2.39M | ﹤0.01% |
139,300
-11,100
| -7% | -$193K |
|
1922
iPath Bloomberg Commodity Index Total Return ETN due 12 June 2036
DJP
$883M
| $2.39M | ﹤0.01% |
64,753
+49,639
| +328% | +$1.67M |
|
|
SFIX
1923
CALL
Stitch Fix
SFIX
$391M
| $2.39M | ﹤0.01% |
237,300
+6,600
| +3% | +$91.2K |
|
|
TCN
1924
CALL
DELISTED
Tricon Residential Inc.
TCN
| $2.39M | ﹤0.01% |
+150,400
| New | +$2.29M |
|
|
LNW
1925
CALL
DELISTED
Light & Wonder
LNW
| $2.38M | ﹤0.01% |
40,600
+18,300
| +82% | +$1.11M |
|
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.