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 | |
|---|---|---|---|---|---|---|
7826
PUT
Alignment Healthcare
ALHC
$3.14B
| $28K | ﹤0.01% |
2,500
+2,100
| +525% | +$18.9K |
|
7827
PUT
AZZ Inc
AZZ
$4.38B
| $28K | ﹤0.01% |
+600
| New | +$29.7K |
|
7828
PUT
Clearwater Paper
CLW
$341M
| $28K | ﹤0.01% |
1,000
-6,800
| -87% | -$214K |
|
7829
Citius Pharmaceuticals
CTXR
$15.7M
| $28K | ﹤0.01% |
626
+594
| +1,856% | +$23.5K |
|
7830
CALL
DiaMedica Therapeutics
DMAC
$341M
| $28K | ﹤0.01% |
11,300
-11,000
| -49% | -$31.2K |
|
|
EARN
7831
CALL
Ellington Residential Mortgage REIT
EARN
$163M
| $28K | ﹤0.01% |
2,800
-400
| -13% | -$4.07K |
|
|
ESPR
7832
PUT
DELISTED
Esperion Therapeutics
ESPR
| $28K | ﹤0.01% |
6,100
-15,200
| -71% | -$65.2K |
|
7833
StealthGas
GASS
$332M
| $28K | ﹤0.01% |
11,965
+11,833
| +8,964% | +$26K |
|
7834
PUT
Geron
GERN
$821M
| $28K | ﹤0.01% |
20,600
-11,000
| -35% | -$12.3K |
|
|
IMCC
7835
IM Cannabis
IMCC
$1.02M
| $28K | ﹤0.01% |
224
+36
| +19% | +$4.91K |
|
|
ITOS
7836
CALL
DELISTED
iTeos Therapeutics
ITOS
| $28K | ﹤0.01% |
+900
| New | +$32.7K |
|
7837
KraneShares Electric Vehicles and Future Mobility Index ETF
KARS
$76.9M
| $28K | ﹤0.01% |
733
-1,186
| -62% | -$48.8K |
|
7838
Kinsale Capital Group
KNSL
$8.15B
| $28K | ﹤0.01% |
127
-4,185
| -97% | -$873K |
|
|
LGHL
7839
CALL
Lion Group Holding
LGHL
$851K
| – | – |
0
| – | – |
|
7840
CALL
ManpowerGroup
MAN
$2.43B
| $28K | ﹤0.01% |
300
-700
| -70% | -$71.3K |
|
7841
PUT
Manitowoc
MTW
$499M
| $28K | ﹤0.01% |
1,900
-5,100
| -73% | -$87.8K |
|
7842
NBT Bancorp
NBTB
$2.74B
| $28K | ﹤0.01% |
+783
| New | +$30.4K |
|
7843
CALL
Neurogene
NGNE
$656M
| $28K | ﹤0.01% |
770
+265
| +52% | +$15.5K |
|
7844
CALL
Nu Skin
NUS
$251M
| $28K | ﹤0.01% |
600
| – | – |
|
|
7845
PUT
Nu Skin
NUS
$251M
| $28K | ﹤0.01% |
600
-6,500
| -92% | -$322K |
|
7846
CALL
Northwest Bancshares
NWBI
$2.3B
| $28K | ﹤0.01% |
2,100
-21,800
| -91% | -$308K |
|
7847
Orion Energy Systems
OESX
$41.3M
| $28K | ﹤0.01% |
1,019
+655
| +180% | +$21K |
|
7848
PUT
OFS Capital
OFS
$44.3M
| $28K | ﹤0.01% |
2,200
| – | – |
|
7849
PUT
Omeros
OMER
$863M
| $28K | ﹤0.01% |
4,700
-63,700
| -93% | -$397K |
|
7850
CALL
OneSpaWorld
OSW
$2.62B
| $28K | ﹤0.01% |
2,800
+2,600
| +1,300% | +$26.5K |
|
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.