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 | |
|---|---|---|---|---|---|---|
5951
CALL
Global Partners
GLP
$1.68B
| $114K | ﹤0.01% |
4,200
+200
| +5% | +$5.26K |
|
5952
CALL
Innoviva
INVA
$1.55B
| $114K | ﹤0.01% |
5,900
-14,000
| -70% | -$250K |
|
5953
PUT
Kelly Services Class A
KELYA
$514M
| $114K | ﹤0.01% |
5,300
+700
| +15% | +$13.6K |
|
5954
MeiraGTx Holdings
MGTX
$1.09B
| $114K | ﹤0.01% |
8,293
+4,132
| +99% | +$63.6K |
|
5955
PUT
ProPetro Holding
PUMP
$1.36B
| $114K | ﹤0.01% |
8,200
-64,500
| -89% | -$771K |
|
|
SA
5956
PUT
Seabridge Gold
SA
$2.78B
| $114K | ﹤0.01% |
6,200
-16,300
| -72% | -$278K |
|
|
STKL
5957
CALL
DELISTED
SunOpta
STKL
| $114K | ﹤0.01% |
22,900
-78,300
| -77% | -$413K |
|
|
SJR
5958
CALL
DELISTED
Shaw Communications Inc.
SJR
| $114K | ﹤0.01% |
3,700
| – | – |
|
|
VLTA
5959
CALL
DELISTED
Volta Inc.
VLTA
| $114K | ﹤0.01% |
37,400
+6,200
| +20% | +$29.8K |
|
5960
PUT
Akebia Therapeutics
AKBA
$354M
| $113K | ﹤0.01% |
158,100
+141,100
| +830% | +$302K |
|
|
CIVI
5961
CALL
DELISTED
Civitas Resources
CIVI
| $113K | ﹤0.01% |
1,900
-900
| -32% | -$48.9K |
|
5962
CALL
Enova International
ENVA
$6.33B
| $113K | ﹤0.01% |
3,000
-3,400
| -53% | -$137K |
|
5963
PUT
US Global Investors
GROW
$35.5M
| $113K | ﹤0.01% |
21,900
+6,100
| +39% | +$31.9K |
|
5964
MarineMax
HZO
$759M
| $113K | ﹤0.01% |
2,826
+1,080
| +62% | +$50.7K |
|
5965
CALL
Samsara
IOT
$21.7B
| $113K | ﹤0.01% |
7,100
+4,200
| +145% | +$80.1K |
|
5966
CALL
Nordson
NDSN
$16.6B
| $113K | ﹤0.01% |
500
+300
| +150% | +$68.9K |
|
5967
PUT
Patria Investments
PAX
$1.75B
| $113K | ﹤0.01% |
6,400
+500
| +8% | +$8.33K |
|
5968
CALL
TechTarget
TTGT
$325M
| $113K | ﹤0.01% |
1,400
-3,500
| -71% | -$282K |
|
|
GGRP
5969
PUT
Glimpse Group
GGRP
$18.8M
| $113K | ﹤0.01% |
+17,800
| New | +$145K |
|
5970
CALL
Cactus
WHD
$5.21B
| $113K | ﹤0.01% |
2,000
+1,900
| +1,900% | +$94.2K |
|
|
FFAI
5971
Faraday Future Intelligent Electric
FFAI
$15.2M
| – | – |
0
| – | – |
|
|
FRBK
5972
DELISTED
Republic First Bancorp Inc
FRBK
| $113K | ﹤0.01% |
22,075
+21,095
| +2,153% | +$101K |
|
5973
CALL
ADMA Biologics
ADMA
$1.96B
| $112K | ﹤0.01% |
61,600
-19,500
| -24% | -$30.4K |
|
5974
PUT
Century Communities
CCS
$1.91B
| $112K | ﹤0.01% |
2,100
-5,400
| -72% | -$347K |
|
|
CGC
5975
Canopy Growth
CGC
$387M
| $112K | ﹤0.01% |
1,480
+1,469
| +13,355% | +$112K |
|
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.