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 | |
|---|---|---|---|---|---|---|
|
AAT
7076
American Assets Trust
AAT
$1.45B
| $51K | ﹤0.01% |
+1,348
| New | +$49.4K |
|
7077
PUT
Advanced Energy
AEIS
$11.6B
| $51K | ﹤0.01% |
600
+100
| +20% | +$8.66K |
|
7078
PUT
Amylyx Pharmaceuticals
AMLX
$2.26B
| $51K | ﹤0.01% |
+4,000
| New | +$90.3K |
|
7079
PUT
AdvanSix
ASIX
$541M
| $51K | ﹤0.01% |
1,000
-13,500
| -93% | -$602K |
|
7080
ASE Group
ASX
$77.3B
| $51K | ﹤0.01% |
+7,313
| New | +$53.7K |
|
7081
PUT
Credicorp
BAP
$31.8B
| $51K | ﹤0.01% |
300
+200
| +200% | +$30.2K |
|
|
BPMC
7082
CALL
DELISTED
Blueprint Medicines
BPMC
| $51K | ﹤0.01% |
800
-13,400
| -94% | -$962K |
|
|
BRFS
7083
PUT
DELISTED
BRF SA
BRFS
| $51K | ﹤0.01% |
13,000
+500
| +4% | +$1.85K |
|
7084
CALL
Certara
CERT
$1.26B
| $51K | ﹤0.01% |
2,400
-49,700
| -95% | -$1.19M |
|
|
CKPT
7085
DELISTED
Checkpoint Therapeutics
CKPT
| $51K | ﹤0.01% |
2,888
-7,859
| -73% | -$169K |
|
7086
Clearway Energy Class C
CWEN
$4.94B
| $51K | ﹤0.01% |
1,407
-3,603
| -72% | -$123K |
|
7087
CALL
Dime Commercial Bancshares
DCOM
$1.8B
| $51K | ﹤0.01% |
1,500
-12,100
| -89% | -$422K |
|
7088
CALL
Evolus
EOLS
$385M
| $51K | ﹤0.01% |
4,600
-18,600
| -80% | -$159K |
|
7089
PUT
Globus Medical
GMED
$10.7B
| $51K | ﹤0.01% |
700
-3,100
| -82% | -$215K |
|
|
HDSN
7090
PUT
Hudson Technologies
HDSN
$254M
| $51K | ﹤0.01% |
8,300
+3,800
| +84% | +$16.9K |
|
7091
CALL
Humacyte
HUMA
$176M
| $51K | ﹤0.01% |
7,300
+2,800
| +62% | +$16.3K |
|
7092
CALL
Lakeland Industries
LAKE
$113M
| $51K | ﹤0.01% |
2,700
-7,300
| -73% | -$146K |
|
7093
Liberty Latin America Class C
LILAK
$1.63B
| $51K | ﹤0.01% |
5,886
+5,256
| +834% | +$50K |
|
7094
CALL
Moelis & Co
MC
$4.97B
| $51K | ﹤0.01% |
1,100
+600
| +120% | +$31.2K |
|
7095
CALL
Mercury Systems
MRCY
$5.83B
| $51K | ﹤0.01% |
800
+200
| +33% | +$11.9K |
|
7096
CALL
MSC Industrial Direct
MSM
$6.89B
| $51K | ﹤0.01% |
600
-1,100
| -65% | -$89.1K |
|
7097
PUT
Nomura Holdings
NMR
$28.3B
| $51K | ﹤0.01% |
12,100
+400
| +3% | +$1.81K |
|
|
ONTF
7098
CALL
DELISTED
ON24
ONTF
| $51K | ﹤0.01% |
3,900
-14,200
| -78% | -$213K |
|
7099
Roivant Sciences
ROIV
$24.5B
| $51K | ﹤0.01% |
+10,522
| New | +$69.4K |
|
7100
PUT
Sotera Health
SHC
$5.09B
| $51K | ﹤0.01% |
+2,400
| New | +$50.9K |
|
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.