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 | |
|---|---|---|---|---|---|---|
2626
PUT
Zions Bancorporation
ZION
$10.1B
| $1.26M | ﹤0.01% |
19,200
+8,300
| +76% | +$568K |
|
2627
LXP Industrial Trust
LXP
$3.53B
| $1.26M | ﹤0.01% |
16,018
+14,633
| +1,057% | +$1.1M |
|
2628
CALL
Shoals Technologies Group
SHLS
$1.58B
| $1.25M | ﹤0.01% |
73,700
+65,800
| +833% | +$1.14M |
|
2629
CALL
Tapestry
TPR
$28.8B
| $1.25M | ﹤0.01% |
33,800
-2,100
| -6% | -$80.5K |
|
|
BIOR
2630
CALL
DELISTED
Biora Therapeutics, Inc. Common Stock
BIOR
| $1.25M | ﹤0.01% |
4,324
+1,201
| +38% | +$456K |
|
2631
PUT
Global X MSCI Norway ETF
NORW
$86.5M
| $1.25M | ﹤0.01% |
79,000
+61,500
| +351% | +$1.88M |
|
|
WOW
2632
PUT
DELISTED
WideOpenWest
WOW
| $1.25M | ﹤0.01% |
71,800
+23,800
| +50% | +$442K |
|
2633
Chemours
CC
$2.59B
| $1.25M | ﹤0.01% |
+39,771
| New | +$1.24M |
|
2634
JetBlue
JBLU
$1.96B
| $1.25M | ﹤0.01% |
83,663
-178,129
| -68% | -$2.58M |
|
|
TBHC
2635
PUT
DELISTED
The Brand House Collective
TBHC
| $1.25M | ﹤0.01% |
134,500
-9,800
| -7% | -$140K |
|
|
LSI
2636
CALL
DELISTED
Life Storage, Inc.
LSI
| $1.25M | ﹤0.01% |
8,900
+8,600
| +2,867% | +$1.16M |
|
2637
CALL
Nano X Imaging
NNOX
$62.4M
| $1.24M | ﹤0.01% |
114,800
-22,400
| -16% | -$239K |
|
2638
Vanguard Small-Cap Growth ETF
VBK
$23.2B
| $1.24M | ﹤0.01% |
+5,008
| New | +$1.23M |
|
2639
Natera
NTRA
$37.5B
| $1.24M | ﹤0.01% |
+30,483
| New | +$1.83M |
|
2640
Eli Lilly
LLY
$1.07T
| $1.24M | ﹤0.01% |
+4,324
| New | +$1.11M |
|
2641
PUT
Darling Ingredients
DAR
$9.93B
| $1.24M | ﹤0.01% |
15,400
+1,400
| +10% | +$97.5K |
|
|
DVAX
2642
PUT
DELISTED
Dynavax Technologies
DVAX
| $1.24M | ﹤0.01% |
114,200
-200
| -0.2% | -$2.43K |
|
2643
Rocket Lab Corp
RKLB
$39.9B
| $1.24M | ﹤0.01% |
153,557
-158,049
| -51% | -$1.47M |
|
2644
State Street SPDR S&P Homebuilders ETF
XHB
$1.74B
| $1.24M | ﹤0.01% |
+19,562
| New | +$1.41M |
|
|
SWN
2645
DELISTED
Southwestern Energy Company
SWN
| $1.24M | ﹤0.01% |
172,358
-21,135
| -11% | -$106K |
|
2646
CALL
Redwire
RDW
$2.08B
| $1.23M | ﹤0.01% |
145,600
+54,500
| +60% | +$333K |
|
|
CPE
2647
DELISTED
Callon Petroleum Company
CPE
| $1.23M | ﹤0.01% |
20,887
-25,082
| -55% | -$1.37M |
|
|
ATCO
2648
PUT
DELISTED
Atlas Corp.
ATCO
| $1.23M | ﹤0.01% |
84,100
+55,200
| +191% | +$818K |
|
2649
PUT
AtaiBeckley Inc
ATAI
$2.66B
| $1.23M | ﹤0.01% |
242,200
+110,400
| +84% | +$614K |
|
2650
PUT
Hycroft Mining Holding Corp
HYMC
$1.85B
| $1.23M | ﹤0.01% |
+53,570
| New | +$398K |
|
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.