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 | |
|---|---|---|---|---|---|---|
2826
BioCryst Pharmaceuticals
BCRX
$2.37B
| $1.08M | ﹤0.01% |
66,185
+61,765
| +1,397% | +$991K |
|
2827
CALL
Cirrus Logic
CRUS
$6.74B
| $1.08M | ﹤0.01% |
12,700
-14,400
| -53% | -$1.24M |
|
2828
PUT
Madison Square Garden
MSGS
$9.54B
| $1.08M | ﹤0.01% |
6,000
+400
| +7% | +$68.1K |
|
|
RFP
2829
CALL
DELISTED
Resolute Forest Products Inc.
RFP
| $1.08M | ﹤0.01% |
83,400
+54,200
| +186% | +$729K |
|
2830
SGHC Ltd
SGHC
$7.3B
| $1.07M | ﹤0.01% |
+100,221
| New | +$866K |
|
2831
CALL
Stem
STEM
$49.2M
| $1.07M | ﹤0.01% |
4,875
-2,525
| -34% | -$588K |
|
|
ALTU
2832
CALL
DELISTED
Altitude Acquisition Corp
ALTU
| $1.07M | ﹤0.01% |
107,800
+400
| +0.4% | +$3.96K |
|
2833
PUT
Hewlett Packard
HPE
$63.2B
| $1.07M | ﹤0.01% |
64,000
-4,200
| -6% | -$70.4K |
|
2834
CALL
Huazhu Hotels Group
HTHT
$12.4B
| $1.07M | ﹤0.01% |
32,400
+26,100
| +414% | +$968K |
|
|
GOL
2835
DELISTED
Gol Linhas Aéreas Inteligentes S.A. American Depositary Shares (Each representing Ten Preferred Shares)
GOL
| $1.07M | ﹤0.01% |
148,399
+34,834
| +31% | +$222K |
|
2836
CALL
Molina Healthcare
MOH
$10.3B
| $1.07M | ﹤0.01% |
3,200
+2,700
| +540% | +$831K |
|
2837
CALL
Middleby
MIDD
$6.05B
| $1.06M | ﹤0.01% |
6,500
-8,900
| -58% | -$1.62M |
|
2838
CALL
UBS Group
UBS
$170B
| $1.06M | ﹤0.01% |
54,500
-74,900
| -58% | -$1.42M |
|
2839
PUT
Atkore
ATKR
$2.59B
| $1.06M | ﹤0.01% |
10,800
+2,900
| +37% | +$301K |
|
2840
PUT
Kanzhun
BZ
$6.89B
| $1.06M | ﹤0.01% |
42,700
+37,800
| +771% | +$1.1M |
|
|
MAG
2841
CALL
DELISTED
MAG Silver
MAG
| $1.06M | ﹤0.01% |
65,800
+16,800
| +34% | +$267K |
|
2842
CALL
United States Gasoline Fund
UGA
$142M
| $1.06M | ﹤0.01% |
19,100
+10,900
| +133% | +$555K |
|
2843
PUT
PPG Industries
PPG
$25.9B
| $1.06M | ﹤0.01% |
8,100
-18,800
| -70% | -$2.73M |
|
2844
NexGen Energy
NXE
$6.05B
| $1.06M | ﹤0.01% |
187,066
+120,858
| +183% | +$581K |
|
|
COOP
2845
DELISTED
Mr. Cooper
COOP
| $1.06M | ﹤0.01% |
+23,150
| New | +$1.05M |
|
|
TIGR
2846
UP Fintech Holding
TIGR
$845M
| $1.06M | ﹤0.01% |
+215,710
| New | +$968K |
|
2847
PUT
Toast
TOST
$16.8B
| $1.06M | ﹤0.01% |
48,600
+25,600
| +111% | +$578K |
|
2848
CALL
Sphere 3D
ANY
$14.6M
| $1.05M | ﹤0.01% |
7,179
-1,915
| -21% | -$312K |
|
|
PBT
2849
Permian Basin Royalty Trust
PBT
$1.36B
| $1.05M | ﹤0.01% |
84,349
-192,448
| -70% | -$2.48M |
|
2850
PUT
Southern Copper
SCCO
$141B
| $1.05M | ﹤0.01% |
14,994
+755
| +5% | +$48.3K |
|
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.