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 | |
|---|---|---|---|---|---|---|
2576
CALL
Gerdau
GGB
$9.44B
| $1.3M | ﹤0.01% |
255,150
-383,040
| -60% | -$1.65M |
|
2577
CALL
Organon & Co
OGN
$3.55B
| $1.3M | ﹤0.01% |
37,300
-49,700
| -57% | -$1.7M |
|
2578
PUT
Alcon
ALC
$33.1B
| $1.3M | ﹤0.01% |
16,400
+4,500
| +38% | +$348K |
|
|
ERF
2579
PUT
DELISTED
Enerplus Corporation
ERF
| $1.3M | ﹤0.01% |
102,400
+52,900
| +107% | +$642K |
|
|
NLSN
2580
PUT
DELISTED
Nielsen Holdings plc
NLSN
| $1.3M | ﹤0.01% |
47,700
+44,700
| +1,490% | +$888K |
|
2581
ProShares UltraPro Short Dow 30
SDOW
$171M
| $1.3M | ﹤0.01% |
11,495
+6,729
| +141% | +$789K |
|
2582
CALL
Centrus Energy
LEU
$3.22B
| $1.3M | ﹤0.01% |
38,500
+35,900
| +1,381% | +$1.51M |
|
2583
PUT
Senseonics Holdings Inc
SENS
$254M
| $1.3M | ﹤0.01% |
32,935
+25,315
| +332% | +$1.16M |
|
2584
CALL
Bio-Rad Laboratories Class A
BIO
$8.42B
| $1.29M | ﹤0.01% |
2,300
+500
| +28% | +$301K |
|
2585
PUT
Cerence
CRNC
$382M
| $1.29M | ﹤0.01% |
35,900
+8,200
| +30% | +$404K |
|
|
JMIA
2586
PUT
Jumia Technologies
JMIA
$726M
| $1.29M | ﹤0.01% |
135,100
+33,300
| +33% | +$297K |
|
2587
CALL
Albertsons Companies
ACI
$5.4B
| $1.29M | ﹤0.01% |
38,900
-9,400
| -19% | -$292K |
|
2588
Cencora
COR
$60.3B
| $1.29M | ﹤0.01% |
8,358
-959
| -10% | -$136K |
|
|
VBTX
2589
CALL
DELISTED
Veritex Holdings
VBTX
| $1.29M | ﹤0.01% |
33,900
+15,300
| +82% | +$615K |
|
2590
CALL
B&G Foods
BGS
$285M
| $1.29M | ﹤0.01% |
47,900
-3,200
| -6% | -$96.2K |
|
2591
CALL
LSB Industries
LXU
$881M
| $1.29M | ﹤0.01% |
59,200
+22,380
| +61% | +$330K |
|
2592
PUT
Otis Worldwide
OTIS
$27.4B
| $1.29M | ﹤0.01% |
16,800
-1,000
| -6% | -$79.9K |
|
2593
PUT
Perrigo
PRGO
$1.4B
| $1.29M | ﹤0.01% |
33,600
-28,000
| -45% | -$1.07M |
|
|
EVRI
2594
CALL
DELISTED
Everi Holdings
EVRI
| $1.29M | ﹤0.01% |
61,400
+44,800
| +270% | +$954K |
|
2595
iShares US Transportation ETF
IYT
$2.33B
| $1.29M | ﹤0.01% |
+19,100
| New | +$1.26M |
|
2596
PUT
Banco Santander
SAN
$194B
| $1.29M | ﹤0.01% |
381,200
-89,700
| -19% | -$314K |
|
2597
PUT
Main Street Capital
MAIN
$4.97B
| $1.29M | ﹤0.01% |
30,200
+16,900
| +127% | +$724K |
|
|
RVNC
2598
CALL
DELISTED
Revance Therapeutics, Inc.
RVNC
| $1.29M | ﹤0.01% |
66,000
+26,800
| +68% | +$406K |
|
2599
CALL
Spectrum Brands
SPB
$2.04B
| $1.29M | ﹤0.01% |
14,500
| – | – |
|
|
CTLT
2600
PUT
DELISTED
CATALENT, INC.
CTLT
| $1.29M | ﹤0.01% |
11,600
+10,500
| +955% | +$1.1M |
|
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.