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 | |
|---|---|---|---|---|---|---|
2251
PUT
LPL Financial
LPLA
$26.3B
| $1.74M | ﹤0.01% |
9,500
-700
| -7% | -$122K |
|
|
RVNC
2252
PUT
DELISTED
Revance Therapeutics, Inc.
RVNC
| $1.74M | ﹤0.01% |
89,000
+77,400
| +667% | +$1.17M |
|
2253
CALL
Principal Financial Group
PFG
$23.6B
| $1.73M | ﹤0.01% |
23,600
+15,500
| +191% | +$1.12M |
|
|
CMBM
2254
CALL
DELISTED
Cambium Networks
CMBM
| $1.73M | ﹤0.01% |
+73,200
| New | +$1.77M |
|
2255
CALL
Endava
DAVA
$141M
| $1.73M | ﹤0.01% |
13,000
+2,400
| +23% | +$302K |
|
2256
Manchester United
MANU
$3.91B
| $1.73M | ﹤0.01% |
119,366
+98,035
| +460% | +$1.33M |
|
2257
PUT
Philips
PHG
$25.4B
| $1.73M | ﹤0.01% |
68,521
+17,312
| +34% | +$473K |
|
|
LONA
2258
CALL
LeonaBio Inc
LONA
$69.4M
| $1.73M | ﹤0.01% |
12,790
+5,760
| +82% | +$607K |
|
2259
Ambarella
AMBA
$2.99B
| $1.73M | ﹤0.01% |
16,450
+15,708
| +2,117% | +$2M |
|
|
BLDP
2260
Ballard Power Systems
BLDP
$874M
| $1.72M | ﹤0.01% |
148,193
+22,978
| +18% | +$245K |
|
2261
PUT
Brunswick
BC
$5.19B
| $1.72M | ﹤0.01% |
21,300
+400
| +2% | +$36.9K |
|
2262
CALL
ResMed
RMD
$28.3B
| $1.72M | ﹤0.01% |
7,100
+6,600
| +1,320% | +$1.6M |
|
2263
State Street Energy Select Sector SPDR ETF
XLE
$39.5B
| $1.72M | ﹤0.01% |
44,980
-282,278
| -86% | -$9.78M |
|
2264
BRC Inc
BRCC
$126M
| $1.72M | ﹤0.01% |
+82,238
| New | +$1.45M |
|
|
CALY
2265
PUT
Callaway Golf Company
CALY
$3.26B
| $1.72M | ﹤0.01% |
73,300
+19,900
| +37% | +$483K |
|
2266
Fluor
FLR
$7.29B
| $1.71M | ﹤0.01% |
59,717
+9,087
| +18% | +$219K |
|
|
LKFT
2267
PUT
Lakefront Biotherapeutics American Depositary Shares
LKFT
$1.82B
| $1.71M | ﹤0.01% |
27,600
+26,000
| +1,625% | +$1.59M |
|
|
SBNY
2268
DELISTED
Signature Bank
SBNY
| $1.71M | ﹤0.01% |
5,832
+1,400
| +32% | +$455K |
|
|
KZR
2269
PUT
DELISTED
Kezar Life Sciences
KZR
| $1.71M | ﹤0.01% |
10,290
+8,630
| +520% | +$1.24M |
|
|
CRON
2270
CALL
Cronos Group
CRON
$1.05B
| $1.71M | ﹤0.01% |
439,400
-56,700
| -11% | -$207K |
|
|
NTR
2271
PUT
DELISTED
NEW YORK MORTGAGE TRUST INC
NTR
| $1.71M | ﹤0.01% |
468,100
-232,900
| -33% | -$850K |
|
2272
CrowdStrike
CRWD
$187B
| $1.71M | ﹤0.01% |
30,064
-18,740
| -38% | -$873K |
|
|
FIRY
2273
CALL
Firy Inc
FIRY
$127M
| $1.71M | ﹤0.01% |
28,440
+615
| +2% | +$50.1K |
|
2274
PUT
Sprout Social
SPT
$455M
| $1.71M | ﹤0.01% |
21,300
+7,800
| +58% | +$534K |
|
2275
CALL
Raymond James Financial
RJF
$32.5B
| $1.7M | ﹤0.01% |
15,500
-5,200
| -25% | -$551K |
|
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.