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 | |
|---|---|---|---|---|---|---|
4526
PUT
FTC Solar
FTCI
$41.6M
| $305K | ﹤0.01% |
+6,190
| New | +$309K |
|
|
POL
4527
CALL
DELISTED
Polished.com Inc.
POL
| $305K | ﹤0.01% |
3,178
-2,762
| -46% | -$271K |
|
4528
PUT
RPC Inc
RES
$1.13B
| $304K | ﹤0.01% |
28,500
+26,000
| +1,040% | +$207K |
|
4529
CALL
SES AI
SES
$187M
| $304K | ﹤0.01% |
33,700
+21,800
| +183% | +$164K |
|
4530
TripAdvisor
TRIP
$1.7B
| $304K | ﹤0.01% |
+11,225
| New | +$299K |
|
|
ENV
4531
DELISTED
ENVESTNET, INC.
ENV
| $304K | ﹤0.01% |
+4,094
| New | +$300K |
|
4532
Applovin
APP
$134B
| $303K | ﹤0.01% |
5,515
-7,383
| -57% | -$470K |
|
4533
PUT
Atossa Therapeutics
ATOS
$23M
| $303K | ﹤0.01% |
16,200
-4,913
| -23% | -$99.8K |
|
4534
CALL
Freedom Holding
FRHC
$9.44B
| $303K | ﹤0.01% |
5,100
+1,300
| +34% | +$81.3K |
|
4535
BRC Group Holdings
RILY
$264M
| $303K | ﹤0.01% |
4,342
-9,017
| -67% | -$610K |
|
4536
PUT
Trupanion
TRUP
$1.13B
| $303K | ﹤0.01% |
3,400
-1,100
| -24% | -$101K |
|
4537
PUT
Vuzix
VUZI
$178M
| $303K | ﹤0.01% |
46,000
+2,700
| +6% | +$17.8K |
|
4538
EQT Corp
EQT
$32.9B
| $302K | ﹤0.01% |
8,805
-41,915
| -83% | -$1.02M |
|
4539
CALL
SIGA Technologies
SIGA
$240M
| $302K | ﹤0.01% |
42,600
+28,100
| +194% | +$188K |
|
|
CLVS
4540
DELISTED
Clovis Oncology, Inc.
CLVS
| $302K | ﹤0.01% |
149,844
+115,303
| +334% | +$227K |
|
4541
First Interstate BancSystem
FIBK
$3.67B
| $301K | ﹤0.01% |
8,198
+8,197
| +819,700% | +$323K |
|
4542
PUT
Navient
NAVI
$819M
| $301K | ﹤0.01% |
17,700
-1,300
| -7% | -$23.9K |
|
4543
CALL
New Mountain Finance
NMFC
$654M
| $301K | ﹤0.01% |
21,800
-9,400
| -30% | -$127K |
|
4544
CALL
OGE Energy
OGE
$9.86B
| $301K | ﹤0.01% |
7,400
+3,800
| +106% | +$144K |
|
|
PGRE
4545
CALL
DELISTED
Paramount Group
PGRE
| $301K | ﹤0.01% |
27,600
+24,500
| +790% | +$239K |
|
4546
PUT
Targa Resources
TRGP
$56.8B
| $301K | ﹤0.01% |
4,000
-5,900
| -60% | -$373K |
|
|
VNET
4547
CALL
VNET Group
VNET
$1.79B
| $301K | ﹤0.01% |
51,700
-62,100
| -55% | -$477K |
|
|
WLL
4548
CALL
DELISTED
Whiting Petroleum Corporation
WLL
| $301K | ﹤0.01% |
3,700
-103,500
| -97% | -$7.82M |
|
|
4549
Occidental Petroleum
OXY
$55.7B
| $300K | ﹤0.01% |
5,300
-783,593
| -99% | -$34.7M |
|
4550
CALL
Pitney Bowes
PBI
$2.39B
| $300K | ﹤0.01% |
57,800
-16,500
| -22% | -$89.4K |
|
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.