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 | |
|---|---|---|---|---|---|---|
1826
Bunge Global
BG
$23.6B
| $2.61M | ﹤0.01% |
23,583
+10,755
| +84% | +$1.1M |
|
1827
PUT
Consolidated Edison
ED
$40.1B
| $2.61M | ﹤0.01% |
27,600
+10,300
| +60% | +$890K |
|
1828
CALL
CubeSmart
CUBE
$8.94B
| $2.61M | ﹤0.01% |
50,200
-3,000
| -6% | -$152K |
|
|
DCP
1829
CALL
DELISTED
DCP Midstream, LP
DCP
| $2.61M | ﹤0.01% |
77,700
+23,700
| +44% | +$729K |
|
1830
Elastic
ESTC
$9.47B
| $2.6M | ﹤0.01% |
29,282
+5,001
| +21% | +$447K |
|
1831
Coty
COTY
$2.4B
| $2.6M | ﹤0.01% |
289,518
-51,909
| -15% | -$463K |
|
1832
CALL
United Therapeutics
UTHR
$21.4B
| $2.6M | ﹤0.01% |
14,500
-200
| -1% | -$38.1K |
|
1833
CALL
Avantor
AVTR
$10.2B
| $2.6M | ﹤0.01% |
76,900
-96,100
| -56% | -$3.43M |
|
1834
Jazz Pharmaceuticals
JAZZ
$15.6B
| $2.6M | ﹤0.01% |
+16,700
| New | +$2.42M |
|
|
TDAY
1835
CALL
USA Today Co
TDAY
$953M
| $2.6M | ﹤0.01% |
576,100
+543,300
| +1,656% | +$2.76M |
|
1836
CALL
iQIYI
IQ
$954M
| $2.6M | ﹤0.01% |
571,900
+97,900
| +21% | +$408K |
|
|
RWT
1837
PUT
Redwood Trust
RWT
$556M
| $2.59M | ﹤0.01% |
246,300
-106,700
| -30% | -$1.21M |
|
1838
PUT
AES
AES
$10.6B
| $2.59M | ﹤0.01% |
100,700
+84,600
| +525% | +$1.91M |
|
|
TTCF
1839
CALL
DELISTED
Tattooed Chef, Inc Class A Common Stock
TTCF
| $2.59M | ﹤0.01% |
205,600
+33,300
| +19% | +$421K |
|
1840
PUT
STMicroelectronics
STM
$46.8B
| $2.58M | ﹤0.01% |
59,800
+2,300
| +4% | +$102K |
|
1841
PUT
Molson Coors Class B
TAP
$7.37B
| $2.58M | ﹤0.01% |
48,400
-3,300
| -6% | -$166K |
|
1842
CALL
Iron Mountain
IRM
$35.2B
| $2.58M | ﹤0.01% |
46,600
+34,500
| +285% | +$1.64M |
|
|
CANO
1843
CALL
DELISTED
Cano Health, Inc.
CANO
| $2.58M | ﹤0.01% |
4,057
+798
| +24% | +$503K |
|
1844
CALL
Virtu Financial
VIRT
$5.6B
| $2.58M | ﹤0.01% |
69,200
+24,400
| +54% | +$806K |
|
1845
CALL
Amplify Online Retail ETF
IBUY
$122M
| $2.57M | ﹤0.01% |
78,400
-3,300
| -4% | -$235K |
|
1846
CALL
Gold Fields
GFI
$42.4B
| $2.57M | ﹤0.01% |
166,400
+80,000
| +93% | +$1.03M |
|
|
TELL
1847
PUT
DELISTED
Tellurian Inc.
TELL
| $2.57M | ﹤0.01% |
484,900
-82,800
| -15% | -$279K |
|
1848
PUT
Boston Beer
SAM
$1.71B
| $2.56M | ﹤0.01% |
6,600
-5,200
| -44% | -$2.17M |
|
1849
CALL
DigitalBridge
DBRG
$2.99B
| $2.56M | ﹤0.01% |
88,900
+1,875
| +2% | +$54.6K |
|
1850
Playtika
PLTK
$851M
| $2.56M | ﹤0.01% |
132,284
+113,837
| +617% | +$2.03M |
|
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.