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 | |
|---|---|---|---|---|---|---|
9151
Evogene
EVGN
$6M
| $7K | ﹤0.01% |
599
-762
| -56% | -$10.3K |
|
9152
PUT
Foghorn Therapeutics
FHTX
$301M
| $7K | ﹤0.01% |
500
-62,200
| -99% | -$854K |
|
9153
Fresenius Medical Care
FMS
$13.3B
| $7K | ﹤0.01% |
228
-590
| -72% | -$19.4K |
|
9154
CALL
Golub Capital BDC
GBDC
$3.37B
| $7K | ﹤0.01% |
500
-300
| -38% | -$4.64K |
|
9155
Genie Energy
GNE
$387M
| $7K | ﹤0.01% |
1,143
-886
| -44% | -$5.22K |
|
9156
PUT
GeoPark
GPRK
$596M
| $7K | ﹤0.01% |
500
+400
| +400% | +$5.63K |
|
9157
CALL
Goosehead Insurance
GSHD
$1.6B
| $7K | ﹤0.01% |
100
-200
| -67% | -$17.8K |
|
|
9158
PUT
Goosehead Insurance
GSHD
$1.6B
| $7K | ﹤0.01% |
100
-1,200
| -92% | -$107K |
|
9159
CALL
Health Catalyst
HCAT
$158M
| $7K | ﹤0.01% |
300
-1,600
| -84% | -$45.4K |
|
9160
PUT
HF Foods Group
HFFG
$87.2M
| $7K | ﹤0.01% |
1,200
| – | – |
|
9161
CALL
HNI Corp
HNI
$3.18B
| $7K | ﹤0.01% |
200
+100
| +100% | +$4.04K |
|
9162
CALL
Heritage Insurance Holdings
HRTG
$890M
| $7K | ﹤0.01% |
+1,000
| New | +$6.19K |
|
|
JG
9163
Aurora Mobile
JG
$29.7M
| $7K | ﹤0.01% |
328
-140
| -30% | -$2.84K |
|
|
KE
9164
CALL
Kimball Electronics
KE
$584M
| $7K | ﹤0.01% |
400
| – | – |
|
9165
Koppers
KOP
$967M
| $7K | ﹤0.01% |
280
-1,688
| -86% | -$49.8K |
|
9166
Korro Bio
KRRO
$150M
| $7K | ﹤0.01% |
74
-17
| -19% | -$3.25K |
|
9167
CALL
Lineage Cell Therapeutics
LCTX
$264M
| $7K | ﹤0.01% |
4,900
-76,700
| -94% | -$119K |
|
9168
Legacy Housing
LEGH
$649M
| $7K | ﹤0.01% |
351
+93
| +36% | +$2.3K |
|
9169
Lifestance Health
LFST
$4.16B
| $7K | ﹤0.01% |
714
-1,126
| -61% | -$9.88K |
|
9170
CALL
Lincoln Educational Services
LINC
$1.3B
| $7K | ﹤0.01% |
+1,100
| New | +$7.97K |
|
|
9171
PUT
Lincoln Educational Services
LINC
$1.3B
| $7K | ﹤0.01% |
1,000
| – | – |
|
|
LPRO
9172
PUT
Open Lending Corp
LPRO
$373M
| $7K | ﹤0.01% |
400
-3,600
| -90% | -$69.1K |
|
9173
Liquidity Services
LQDT
$1.23B
| $7K | ﹤0.01% |
416
-447
| -52% | -$8.08K |
|
9174
CALL
MediciNova
MNOV
$65.5M
| $7K | ﹤0.01% |
2,800
-100
| -3% | -$245 |
|
9175
CALL
Manitowoc
MTW
$524M
| $7K | ﹤0.01% |
500
+100
| +25% | +$1.72K |
|
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.