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 | |
|---|---|---|---|---|---|---|
|
AZRE
5651
DELISTED
Azure Power Global Limited
AZRE
| $91K | ﹤0.01% |
16,554
+16,165
| +4,156% | +$149K |
|
|
CVM.WS
5652
PUT
DELISTED
Cel-Sci Corp Series S
CVM.WS
| $91K | ﹤0.01% |
29,600
-15,900
| -35% | -$48.9K |
|
5653
CALL
Alarm.com
ALRM
$2.8B
| $90K | ﹤0.01% |
1,400
+1,200
| +600% | +$82.3K |
|
5654
PUT
Ardagh Metal Packaging
AMBP
$3.04B
| $90K | ﹤0.01% |
18,600
+10,600
| +133% | +$64.6K |
|
5655
Evertec
EVTC
$1.93B
| $90K | ﹤0.01% |
+2,901
| New | +$102K |
|
|
GBIO
5656
CALL
DELISTED
Generation Bio
GBIO
| $90K | ﹤0.01% |
1,700
| – | – |
|
|
GPMT
5657
CALL
Granite Point Mortgage Trust
GPMT
$71.9M
| $90K | ﹤0.01% |
14,000
-14,000
| -50% | -$133K |
|
5658
PUT
Inovio Pharmaceuticals
INO
$70M
| $90K | ﹤0.01% |
4,350
+833
| +24% | +$21.3K |
|
5659
KNOT Offshore Partners
KNOP
$361M
| $90K | ﹤0.01% |
+6,439
| New | +$107K |
|
5660
PUT
M/I Homes
MHO
$3.81B
| $90K | ﹤0.01% |
2,500
+2,400
| +2,400% | +$104K |
|
5661
PUT
National Health Investors
NHI
$3.64B
| $90K | ﹤0.01% |
1,600
-5,700
| -78% | -$359K |
|
5662
PUT
NexGen Energy
NXE
$6.65B
| $90K | ﹤0.01% |
24,700
-500
| -2% | -$2.01K |
|
5663
CALL
Ocean Power Technologies
OPTT
$48.6M
| $90K | ﹤0.01% |
110,000
+91,700
| +501% | +$85.5K |
|
5664
CALL
SCYNEXIS
SCYX
$51.2M
| $90K | ﹤0.01% |
4,713
+913
| +24% | +$17.9K |
|
|
TWO
5665
PUT
Two Harbors Investment
TWO
$1.26B
| $90K | ﹤0.01% |
6,850
-550
| -7% | -$10.7K |
|
5666
Angi Inc
ANGI
$194M
| $89K | ﹤0.01% |
3,043
-5,910
| -66% | -$260K |
|
5667
PUT
Cardlytics
CDLX
$23.8M
| $89K | ﹤0.01% |
950
+940
| +9,400% | +$134K |
|
5668
CALL
Gossamer Bio
GOSS
$86.9M
| $89K | ﹤0.01% |
7,500
-200
| -3% | -$2.48K |
|
5669
PUT
GrowGeneration
GRWG
$88.9M
| $89K | ﹤0.01% |
25,700
-11,600
| -31% | -$53.6K |
|
5670
Heron Therapeutics
HRTX
$95.5M
| $89K | ﹤0.01% |
21,124
+2,223
| +12% | +$8.7K |
|
5671
Marathon Petroleum
MPC
$86.9B
| $89K | ﹤0.01% |
900
| – | – |
|
5672
iShares National Muni Bond ETF
MUB
$45.4B
| $89K | ﹤0.01% |
+876
| New | +$93.1K |
|
5673
CALL
Nordic American Tanker
NAT
$1.3B
| $89K | ﹤0.01% |
33,500
-78,000
| -70% | -$207K |
|
5674
PUT
Ocular Therapeutix
OCUL
$1.87B
| $89K | ﹤0.01% |
21,600
+20,900
| +2,986% | +$105K |
|
5675
CALL
Pilgrim's Pride
PPC
$6.33B
| $89K | ﹤0.01% |
3,900
-9,000
| -70% | -$260K |
|
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.