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 | |
|---|---|---|---|---|---|---|
|
TELL
1951
DELISTED
Tellurian Inc.
TELL
| $2.32M | ﹤0.01% |
437,250
+209,723
| +92% | +$706K |
|
|
ICPT
1952
PUT
DELISTED
Intercept Pharmaceuticals, Inc.
ICPT
| $2.31M | ﹤0.01% |
142,300
+77,700
| +120% | +$1.22M |
|
|
WRK
1953
CALL
DELISTED
WestRock Company
WRK
| $2.31M | ﹤0.01% |
49,200
+12,500
| +34% | +$571K |
|
1954
Kinross Gold
KGC
$36B
| $2.31M | ﹤0.01% |
393,302
+78,389
| +25% | +$437K |
|
1955
Cintas
CTAS
$80.5B
| $2.31M | ﹤0.01% |
21,732
+4,224
| +24% | +$411K |
|
1956
PUT
MBIA
MBI
$236M
| $2.31M | ﹤0.01% |
150,200
+77,800
| +107% | +$1.15M |
|
1957
CALL
Weyerhaeuser
WY
$16.4B
| $2.31M | ﹤0.01% |
61,000
-134,000
| -69% | -$5.31M |
|
1958
CALL
Logitech
LOGI
$14.1B
| $2.31M | ﹤0.01% |
31,300
-83,700
| -73% | -$6.49M |
|
1959
Direxion Daily MSCI Brazil Bull 2X ETF
BRZU
$116M
| $2.31M | ﹤0.01% |
19,555
+14,849
| +316% | +$1.3M |
|
1960
CALL
News Corp Class B
NWS
$17.9B
| $2.3M | ﹤0.01% |
103,800
-51,700
| -33% | -$1.16M |
|
1961
PUT
Cboe Global Markets
CBOE
$30.7B
| $2.3M | ﹤0.01% |
20,100
+8,400
| +72% | +$995K |
|
1962
CALL
Deckers Outdoor
DECK
$11.2B
| $2.3M | ﹤0.01% |
50,400
+27,000
| +115% | +$1.34M |
|
1963
Direxion Daily S&P Biotech Bull 3X ETF
LABU
$555M
| $2.3M | ﹤0.01% |
7,331
+3,691
| +101% | +$1.39M |
|
1964
CALL
Freshworks
FRSH
$3.16B
| $2.29M | ﹤0.01% |
127,800
+18,200
| +17% | +$370K |
|
1965
CALL
Natural Resource Partners
NRP
$1.5B
| $2.29M | ﹤0.01% |
53,600
+53,400
| +26,700% | +$2.02M |
|
1966
CALL
CNX Resources
CNX
$5.53B
| $2.29M | ﹤0.01% |
110,500
-20,000
| -15% | -$333K |
|
|
JMIA
1967
CALL
Jumia Technologies
JMIA
$974M
| $2.29M | ﹤0.01% |
238,800
+21,500
| +10% | +$192K |
|
|
OPTU
1968
CALL
Optimum Communications Inc
OPTU
$370M
| $2.29M | ﹤0.01% |
183,100
+78,900
| +76% | +$1.05M |
|
1969
CALL
NetApp
NTAP
$37.1B
| $2.28M | ﹤0.01% |
27,500
-2,600
| -9% | -$226K |
|
1970
3D Systems Corp
DDD
$565M
| $2.28M | ﹤0.01% |
136,697
+48,292
| +55% | +$840K |
|
|
TEN
1971
PUT
DELISTED
Tenneco Inc. Class A Voting Common Stock
TEN
| $2.28M | ﹤0.01% |
124,400
+83,300
| +203% | +$1.19M |
|
1972
Exelixis
EXEL
$14.5B
| $2.28M | ﹤0.01% |
100,457
+67,935
| +209% | +$1.33M |
|
1973
CALL
Aurinia Pharmaceuticals
AUPH
$2.15B
| $2.28M | ﹤0.01% |
183,900
-138,800
| -43% | -$2.15M |
|
1974
PUT
Tanger
SKT
$4.28B
| $2.27M | ﹤0.01% |
132,400
+43,000
| +48% | +$748K |
|
1975
CALL
EVgo
EVGO
$200M
| $2.27M | ﹤0.01% |
176,700
-29,800
| -14% | -$299K |
|
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.