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 | |
|---|---|---|---|---|---|---|
2801
CALL
Mettler-Toledo International
MTD
$26.8B
| $1.1M | ﹤0.01% |
800
-1,800
| -69% | -$2.6M |
|
2802
CALL
Insmed
INSM
$23.2B
| $1.1M | ﹤0.01% |
46,700
+23,500
| +101% | +$546K |
|
|
PTR
2803
CALL
DELISTED
PETROCHINA COMPANY LIMITED ADS (REP 100 H SHARES)
PTR
| $1.1M | ﹤0.01% |
21,700
+14,200
| +189% | +$722K |
|
2804
Global Payments
GPN
$22.1B
| $1.09M | ﹤0.01% |
8,008
-2,190
| -21% | -$306K |
|
|
MPT
2805
Medical Properties Trust
MPT
$2.89B
| $1.09M | ﹤0.01% |
51,832
+18,886
| +57% | +$407K |
|
2806
CALL
Schrodinger
SDGR
$1.12B
| $1.09M | ﹤0.01% |
32,100
-14,400
| -31% | -$437K |
|
2807
CALL
Ocugen
OCGN
$410M
| $1.09M | ﹤0.01% |
331,700
-64,500
| -16% | -$227K |
|
|
PING
2808
DELISTED
Ping Identity Holding Corp.
PING
| $1.09M | ﹤0.01% |
39,859
+22,456
| +129% | +$472K |
|
|
SWN
2809
CALL
DELISTED
Southwestern Energy Company
SWN
| $1.09M | ﹤0.01% |
152,300
-143,800
| -49% | -$724K |
|
|
ASTR
2810
CALL
DELISTED
Astra Space, Inc. Class A Common Stock
ASTR
| $1.09M | ﹤0.01% |
18,840
+16,560
| +726% | +$1.09M |
|
2811
CALL
Aspen Aerogels
ASPN
$387M
| $1.09M | ﹤0.01% |
31,600
+15,900
| +101% | +$516K |
|
2812
CALL
TETRA Technologies
TTI
$1.23B
| $1.09M | ﹤0.01% |
264,700
+224,600
| +560% | +$718K |
|
|
POLY
2813
CALL
DELISTED
Plantronics, Inc.
POLY
| $1.09M | ﹤0.01% |
27,600
+23,900
| +646% | +$680K |
|
|
OTLY
2814
CALL
Oatly Group
OTLY
$417M
| $1.09M | ﹤0.01% |
10,845
-10,135
| -48% | -$1.34M |
|
2815
Direxion Daily CSI China Internet Index Bull 2X ETF
CWEB
$218M
| $1.08M | ﹤0.01% |
17,490
+12,214
| +232% | +$1.24M |
|
2816
Perrigo
PRGO
$1.4B
| $1.08M | ﹤0.01% |
28,166
-19,352
| -41% | -$737K |
|
2817
CALL
Xylem
XYL
$28.5B
| $1.08M | ﹤0.01% |
12,700
+6,700
| +112% | +$642K |
|
|
RADI
2818
CALL
DELISTED
Radius Global Infrastructure, Inc. Class A Common Stock
RADI
| $1.08M | ﹤0.01% |
75,800
+68,400
| +924% | +$953K |
|
2819
PUT
Henry Schein
HSIC
$9.74B
| $1.08M | ﹤0.01% |
12,400
+10,400
| +520% | +$847K |
|
|
LSI
2820
PUT
DELISTED
Life Storage, Inc.
LSI
| $1.08M | ﹤0.01% |
7,700
+7,500
| +3,750% | +$1.01M |
|
2821
CALL
Vermilion Energy
VET
$1.73B
| $1.08M | ﹤0.01% |
51,400
+25,100
| +95% | +$445K |
|
|
VRNT
2822
PUT
DELISTED
Verint Systems
VRNT
| $1.08M | ﹤0.01% |
20,900
-25,100
| -55% | -$1.29M |
|
2823
PUT
Ascendis Pharma A/S
ASND
$16.7B
| $1.08M | ﹤0.01% |
9,200
+8,100
| +736% | +$938K |
|
2824
Teucrium Corn Fund
CORN
$190M
| $1.08M | ﹤0.01% |
39,736
+4,523
| +13% | +$109K |
|
2825
iShares MSCI Singapore ETF
EWS
$1.01B
| $1.08M | ﹤0.01% |
+51,681
| New | +$1.08M |
|
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.