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 | |
|---|---|---|---|---|---|---|
5001
CALL
Lipocine
LPCN
$17.1M
| $223K | ﹤0.01% |
9,576
+3,829
| +67% | +$80.1K |
|
5002
Navigator Holdings
NVGS
$1.35B
| $223K | ﹤0.01% |
+18,271
| New | +$184K |
|
5003
PUT
Ternium
TX
$9.43B
| $223K | ﹤0.01% |
4,900
-1,400
| -22% | -$59.6K |
|
5004
CALL
Viavi Solutions
VIAV
$7.95B
| $223K | ﹤0.01% |
13,900
+5,700
| +70% | +$94K |
|
|
ONEM
5005
CALL
DELISTED
1Life Healthcare
ONEM
| $223K | ﹤0.01% |
20,200
-2,300
| -10% | -$25.8K |
|
|
ESTE
5006
DELISTED
Earthstone Energy Inc. Class A Common Stock
ESTE
| $223K | ﹤0.01% |
17,684
+11,469
| +185% | +$150K |
|
5007
PUT
Funko
FNKO
$346M
| $222K | ﹤0.01% |
12,900
-3,200
| -20% | -$55.9K |
|
5008
CALL
ICU Medical
ICUI
$4.16B
| $222K | ﹤0.01% |
1,000
+900
| +900% | +$202K |
|
5009
PUT
TE Connectivity
TEL
$60B
| $222K | ﹤0.01% |
1,700
-300
| -15% | -$42.9K |
|
5010
iShares Global Timber & Forestry ETF
WOOD
$264M
| $222K | ﹤0.01% |
+2,496
| New | +$225K |
|
|
HLTH
5011
PUT
DELISTED
Cue Health Inc. Common Stock
HLTH
| $222K | ﹤0.01% |
34,500
+24,300
| +238% | +$220K |
|
|
PLXP
5012
CALL
DELISTED
PLx Pharma Inc. Common Stock
PLXP
| $222K | ﹤0.01% |
55,000
+23,200
| +73% | +$127K |
|
5013
CALL
Andersons Inc
ANDE
$2.39B
| $221K | ﹤0.01% |
4,400
+4,000
| +1,000% | +$168K |
|
5014
CALL
CAE Inc. Common Shares
CAE
$8.44B
| $221K | ﹤0.01% |
8,500
+8,300
| +4,150% | +$211K |
|
5015
CALL
Churchill Downs
CHDN
$6.17B
| $221K | ﹤0.01% |
2,000
-30,600
| -94% | -$3.36M |
|
5016
PUT
Genpact
G
$6.22B
| $221K | ﹤0.01% |
5,100
+4,000
| +364% | +$185K |
|
|
HEPA
5017
CALL
DELISTED
Hepion Pharmaceuticals
HEPA
| $221K | ﹤0.01% |
172
+32
| +23% | +$35.4K |
|
5018
PUT
Magnachip Semiconductor
MX
$110M
| $221K | ﹤0.01% |
13,100
-6,400
| -33% | -$115K |
|
|
OIG
5019
PUT
DELISTED
Orbital Infrastructure Group, Inc. Common Stock
OIG
| $221K | ﹤0.01% |
3,010
+240
| +9% | +$16.2K |
|
5020
PUT
Amplify Energy
AMPY
$158M
| $220K | ﹤0.01% |
40,000
-5,600
| -12% | -$25.9K |
|
5021
Clean Harbors
CLH
$17.2B
| $220K | ﹤0.01% |
+1,979
| New | +$195K |
|
5022
CALL
Dogness International Corp
DOGZ
$13.1M
| $220K | ﹤0.01% |
1,835
+1,085
| +145% | +$87.3K |
|
5023
PUT
loanDepot
LDI
$548M
| $220K | ﹤0.01% |
53,200
+12,700
| +31% | +$55.2K |
|
5024
CALL
Blue Owl Capital
OWL
$6.45B
| $220K | ﹤0.01% |
17,400
-6,600
| -28% | -$83.6K |
|
|
DOMA
5025
DELISTED
Doma Holdings, Inc.
DOMA
| $220K | ﹤0.01% |
4,059
+3,333
| +459% | +$267K |
|
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.