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 | |
|---|---|---|---|---|---|---|
|
HSII
5776
CALL
DELISTED
Heidrick & Struggles
HSII
| $130K | ﹤0.01% |
3,300
-100,000
| -97% | -$4.23M |
|
5777
PUT
Hyliion Holdings
HYLN
$635M
| $130K | ﹤0.01% |
29,400
-62,200
| -68% | -$275K |
|
5778
Portland General Electric
POR
$5.8B
| $130K | ﹤0.01% |
+2,367
| New | +$125K |
|
5779
CALL
Thomson Reuters
TRI
$42.8B
| $130K | ﹤0.01% |
1,139
-664
| -37% | -$74.1K |
|
5780
CALL
Vanda Pharmaceuticals
VNDA
$307M
| $130K | ﹤0.01% |
11,500
-49,700
| -81% | -$653K |
|
|
SHPW
5781
CALL
DELISTED
Shapeways Holdings, Inc. Common Stock
SHPW
| $130K | ﹤0.01% |
5,725
-5,525
| -49% | -$131K |
|
|
CYXT
5782
CALL
DELISTED
Cyxtera Technologies, Inc. Class A Common Stock
CYXT
| $130K | ﹤0.01% |
10,700
-20,700
| -66% | -$243K |
|
|
AMWD
5783
DELISTED
American Woodmark
AMWD
| $129K | ﹤0.01% |
+2,642
| New | +$152K |
|
5784
Dynagas LNG Partners
DLNG
$132M
| $129K | ﹤0.01% |
+32,245
| New | +$98.6K |
|
5785
PUT
Diana Shipping
DSX
$302M
| $129K | ﹤0.01% |
31,214
+27,328
| +703% | +$95.7K |
|
|
GRFS
5786
PUT
Grifois
GRFS
$5.36B
| $129K | ﹤0.01% |
11,100
+2,600
| +31% | +$29.9K |
|
5787
Garrett Motion
GTX
$5.81B
| $129K | ﹤0.01% |
18,001
+11,330
| +170% | +$81.2K |
|
5788
CALL
Healthcare Services Group
HCSG
$1.6B
| $129K | ﹤0.01% |
7,000
+5,100
| +268% | +$88K |
|
5789
CALL
Liquidia Corp
LQDA
$7.48B
| $129K | ﹤0.01% |
18,100
+5,500
| +44% | +$34.6K |
|
5790
Terex
TEX
$7.18B
| $129K | ﹤0.01% |
3,619
-1,114
| -24% | -$46.1K |
|
5791
Procure Space ETF
UFO
$612M
| $129K | ﹤0.01% |
5,041
-618
| -11% | -$15.4K |
|
5792
Verisk Analytics
VRSK
$25.4B
| $129K | ﹤0.01% |
602
+303
| +101% | +$59.7K |
|
|
RNLX
5793
DELISTED
Renalytix plc American Depositary Shares
RNLX
| $129K | ﹤0.01% |
18,775
-573
| -3% | -$6.07K |
|
|
ESSC
5794
PUT
DELISTED
East Stone Acquisition Corporation Ordinary Shares
ESSC
| $129K | ﹤0.01% |
12,500
+2,200
| +21% | +$24.4K |
|
5795
G-III Apparel Group
GIII
$1.54B
| $128K | ﹤0.01% |
+4,749
| New | +$129K |
|
5796
Harmony Gold Mining
HMY
$9.84B
| $128K | ﹤0.01% |
+25,602
| New | +$109K |
|
5797
Outset Medical
OM
$84.7M
| $128K | ﹤0.01% |
+189
| New | +$114K |
|
5798
CALL
FreightCar America
RAIL
$261M
| $128K | ﹤0.01% |
21,700
+13,900
| +178% | +$57K |
|
5799
PUT
Veru
VERU
$36M
| $128K | ﹤0.01% |
2,670
+710
| +36% | +$38.6K |
|
5800
CALL
GeneDx Holdings
WGS
$1.93B
| $128K | ﹤0.01% |
1,270
-760
| -37% | -$84.5K |
|
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.