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 | 0.38% |
| 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 | |
|---|---|---|---|---|---|---|
6276
Limbach Holdings
LMB
$543M
| $91K | ﹤0.01% |
13,189
+1,774
| +16% | +$14K |
|
6277
PLAYSTUDIOS Inc
MYPS
$63.1M
| $91K | ﹤0.01% |
18,767
-695
| -4% | -$3.07K |
|
6278
ProPetro Holding
PUMP
$1.49B
| $91K | ﹤0.01% |
6,572
-95,510
| -94% | -$1.14M |
|
6279
CALL
Talkspace
TALK
$871M
| $91K | ﹤0.01% |
52,300
-5,500
| -10% | -$8.59K |
|
|
FREE
6280
DELISTED
Whole Earth Brands, Inc. Class A Common Stock
FREE
| $91K | ﹤0.01% |
+12,841
| New | +$115K |
|
|
OIG
6281
DELISTED
Orbital Infrastructure Group, Inc. Common Stock
OIG
| $91K | ﹤0.01% |
1,238
+1,053
| +569% | +$70.9K |
|
|
QIWI
6282
DELISTED
QIWI PLC
QIWI
| $91K | ﹤0.01% |
18,547
-4,210
| -18% | -$31.2K |
|
6283
CALL
AppFolio
APPF
$7.23B
| $90K | ﹤0.01% |
800
-500
| -38% | -$57.6K |
|
6284
PUT
A10 Networks
ATEN
$1.99B
| $90K | ﹤0.01% |
6,500
+4,200
| +183% | +$59K |
|
6285
PUT
CareTrust REIT
CTRE
$9.16B
| $90K | ﹤0.01% |
4,700
+1,300
| +38% | +$25.6K |
|
6286
ProShares UltraShort Euro
EUO
$33.1M
| $90K | ﹤0.01% |
3,312
-16,130
| -83% | -$429K |
|
6287
Federated Hermes
FHI
$4.79B
| $90K | ﹤0.01% |
2,650
+2,357
| +804% | +$80.2K |
|
6288
PUT
Flotek Industries
FTK
$1.3B
| $90K | ﹤0.01% |
11,950
+7,533
| +171% | +$53.7K |
|
6289
CALL
ICL Group
ICL
$7.16B
| $90K | ﹤0.01% |
7,500
+2,800
| +60% | +$29.6K |
|
|
JAMF
6290
DELISTED
Jamf
JAMF
| $90K | ﹤0.01% |
2,592
-6,362
| -71% | -$216K |
|
|
PWCM
6291
CALL
PowerCompute, Inc. Common Stock
PWCM
$1.18M
| $90K | ﹤0.01% |
210
-135
| -39% | -$69.4K |
|
6292
PUT
MDU Resources
MDU
$4.34B
| $90K | ﹤0.01% |
8,942
-6,574
| -42% | -$69.6K |
|
6293
CALL
Matrix Service
MTRX
$335M
| $90K | ﹤0.01% |
11,000
+8,500
| +340% | +$64.2K |
|
|
6294
CALL
PLAYSTUDIOS Inc
MYPS
$63.1M
| $90K | ﹤0.01% |
18,700
-38,500
| -67% | -$170K |
|
6295
PUT
Old Republic International
ORI
$10.3B
| $90K | ﹤0.01% |
3,500
-1,500
| -30% | -$38.7K |
|
|
ORLA
6296
CALL
DELISTED
Orla Mining
ORLA
| $90K | ﹤0.01% |
+18,900
| New | +$76K |
|
6297
PUT
INNOVATE Corp
VATE
$109M
| $90K | ﹤0.01% |
+2,450
| New | +$90.9K |
|
6298
XPEL
XPEL
$1.38B
| $90K | ﹤0.01% |
+1,723
| New | +$106K |
|
|
MMAT
6299
PUT
DELISTED
Meta Materials Inc. Common Stock
MMAT
| $90K | ﹤0.01% |
540
-107
| -17% | -$19.9K |
|
6300
PUT
Ares Management
ARES
$32.5B
| $89K | ﹤0.01% |
1,100
+700
| +175% | +$53.8K |
|
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 1,602 new positions and adding to 4,440 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 0.63% 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 1,602 new positions and closed 1,638 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.