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 |
Microsoft
MSFT
|
+$114M |
| 2 |
NVIDIA
NVDA
|
+$85.9M |
| 3 |
Citigroup
C
|
+$61.5M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
+$45.5M |
| 5 |
Pfizer
PFE
|
+$41.6M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$467M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$71.2M |
| 3 |
Meta Platforms (Facebook)
META
|
+$47.6M |
| 4 |
Intel
INTC
|
+$41.9M |
| 5 |
TSMC
TSM
|
+$35.9M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.51% |
| 2 | Financials | 0.35% |
| 3 | Consumer Discretionary | 0.3% |
| 4 | Healthcare | 0.25% |
| 5 | Industrials | 0.18% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
5126
PUT
Globalstar
GSAT
$10.8B
| $133K | ﹤0.01% |
5,600
+3,747
| +202% | +$90.3K |
|
5127
The Honest Company
HNST
$403M
| $133K | ﹤0.01% |
38,201
-5,425
| -12% | -$19.9K |
|
|
OPI
5128
PUT
DELISTED
Office Properties Income Trust
OPI
| $133K | ﹤0.01% |
9,500
+2,500
| +36% | +$46.9K |
|
|
PLG
5129
PUT
Platinum Group Metals
PLG
$165M
| $133K | ﹤0.01% |
81,900
-27,900
| -25% | -$41.7K |
|
5130
PUT
Outdoor Holding Co
POWW
$253M
| $133K | ﹤0.01% |
45,400
-32,100
| -41% | -$137K |
|
5131
PUT
Pilgrim's Pride
PPC
$6.65B
| $133K | ﹤0.01% |
5,800
+400
| +7% | +$11.6K |
|
|
EVOP
5132
PUT
DELISTED
EVO Payments, Inc. Class A Common Stock
EVOP
| $133K | ﹤0.01% |
+4,000
| New | +$124K |
|
5133
CALL
Community Bank
CBU
$3.5B
| $132K | ﹤0.01% |
+2,200
| New | +$145K |
|
5134
PUT
Fate Therapeutics
FATE
$291M
| $132K | ﹤0.01% |
5,900
+3,200
| +119% | +$92.5K |
|
5135
PUT
FTI Consulting
FCN
$4.37B
| $132K | ﹤0.01% |
800
-500
| -38% | -$84.1K |
|
5136
PUT
Focus Universal
FCUV
$8.08M
| $132K | ﹤0.01% |
53
+49
| +1,225% | +$158K |
|
|
FRGE
5137
PUT
DELISTED
Forge Global Holdings
FRGE
| $132K | ﹤0.01% |
5,060
+3,793
| +299% | +$261K |
|
5138
PUT
Green Brick Partners
GRBK
$3.09B
| $132K | ﹤0.01% |
6,200
+1,000
| +19% | +$24.7K |
|
5139
Humacyte
HUMA
$186M
| $132K | ﹤0.01% |
+40,725
| New | +$156K |
|
|
NIU
5140
PUT
Niu Technologies
NIU
$202M
| $132K | ﹤0.01% |
32,200
+29,200
| +973% | +$178K |
|
5141
CALL
Procept Biorobotics
PRCT
$1.05B
| $132K | ﹤0.01% |
3,200
+2,400
| +300% | +$95.7K |
|
5142
CALL
Spok Holdings
SPOK
$232M
| $132K | ﹤0.01% |
+17,400
| New | +$121K |
|
5143
United States 12 Month Natural Gas Fund
UNL
$13.5M
| $132K | ﹤0.01% |
6,025
+718
| +14% | +$17.3K |
|
|
LEV
5144
PUT
DELISTED
The Lion Electric Company
LEV
| $132K | ﹤0.01% |
46,500
+10,500
| +29% | +$44.9K |
|
|
GLOP
5145
CALL
DELISTED
GASLOG PARTNERS LP
GLOP
| $132K | ﹤0.01% |
25,600
-24,100
| -48% | -$137K |
|
|
NIB
5146
DELISTED
iPath Bloomberg Cocoa Subindex Total Return ETN due June 24, 2038
NIB
| $132K | ﹤0.01% |
5,374
+1,791
| +50% | +$44.6K |
|
5147
CALL
Advanced Energy
AEIS
$11.9B
| $131K | ﹤0.01% |
1,700
+1,500
| +750% | +$129K |
|
5148
PUT
Amplitude
AMPL
$1.26B
| $131K | ﹤0.01% |
8,500
-6,300
| -43% | -$101K |
|
5149
PUT
Crane NXT
CXT
$3.09B
| $131K | ﹤0.01% |
4,319
+3,167
| +275% | +$104K |
|
5150
CALL
Fulton Financial
FULT
$4.72B
| $131K | ﹤0.01% |
8,300
+8,100
| +4,050% | +$131K |
|
Similar funds
Simplex Trading's Q3 2022 Portfolio in Review
As of Q3 2022, Simplex Trading held 11,570 positions worth $88.5B, down 6% from $94.1B the previous quarter. Its ten largest holdings account for 38% of the portfolio.
Simplex Trading's Q3 2022 filing shows 1,564 new, 4,281 increased, 3,851 reduced and 1,575 closed positions. Its largest new stake was Microsoft: 432,062 shares worth $101M. The largest sale was Apple, an estimated $467M.
By sector, the portfolio is most concentrated in Technology at 0.51% of assets, down from 0.84% a quarter earlier, followed by Financials and Consumer Discretionary.
- Simplex Trading's largest Q3 2022 buy was Microsoft: 432,062 shares worth $101M.
- Simplex Trading added most to NVIDIA in Q3 2022, an estimated $85.9M increase.
- Simplex Trading's biggest Q3 2022 reduction was Apple, cutting an estimated $467M.
- Simplex Trading fully exited iShares Core S&P 500 ETF in Q3 2022, selling an estimated $34.3M.
- Simplex Trading's ten largest holdings make up 38% of its $88.5B portfolio in Q3 2022.
- Simplex Trading opened 1,564 new positions and closed 1,575 in Q3 2022.
- Simplex Trading's portfolio value fell 6% quarter-over-quarter to $88.5B.
Based on Simplex Trading's 13F filing for Q3 2022, filed 4 Nov 2022.