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 | |
|---|---|---|---|---|---|---|
|
HUGS
7001
CALL
DELISTED
USHG Acquisition Corp.
HUGS
| $32K | ﹤0.01% |
3,300
+2,200
| +200% | +$21.6K |
|
|
MACK
7002
DELISTED
Merrimack Pharmaceuticals, Inc.
MACK
| $32K | ﹤0.01% |
8,692
-27,776
| -76% | -$128K |
|
7003
PUT
Acco Brands
ACCO
$390M
| $31K | ﹤0.01% |
6,500
-5,400
| -45% | -$34.2K |
|
7004
PUT
Andersons Inc
ANDE
$2.41B
| $31K | ﹤0.01% |
1,000
-4,100
| -80% | -$143K |
|
7005
Banco Bilbao Vizcaya Argentaria
BBVA
$154B
| $31K | ﹤0.01% |
7,127
-27,161
| -79% | -$123K |
|
|
BRFS
7006
DELISTED
BRF SA
BRFS
| $31K | ﹤0.01% |
13,398
+2,875
| +27% | +$8.5K |
|
|
CLSD
7007
PUT
DELISTED
Clearside Biomedical
CLSD
| $31K | ﹤0.01% |
1,867
-653
| -26% | -$14.3K |
|
7008
Salesforce
CRM
$151B
| $31K | ﹤0.01% |
216
+200
| +1,250% | +$33.9K |
|
7009
CALL
Dynagas LNG Partners
DLNG
$132M
| $31K | ﹤0.01% |
11,100
+4,700
| +73% | +$15.8K |
|
7010
PUT
Eastern Bankshares
EBC
$5.26B
| $31K | ﹤0.01% |
1,600
+400
| +33% | +$8K |
|
7011
Essential Properties Realty Trust
EPRT
$6.77B
| $31K | ﹤0.01% |
1,633
-589
| -27% | -$13.4K |
|
|
FRGE
7012
DELISTED
Forge Global Holdings
FRGE
| $31K | ﹤0.01% |
+1,199
| New | +$82.4K |
|
7013
Gladstone Capital
GLAD
$422M
| $31K | ﹤0.01% |
+1,845
| New | +$37.6K |
|
7014
PUT
Haleon
HLN
$43.5B
| $31K | ﹤0.01% |
+5,100
| New | +$33K |
|
7015
CALL
Herc Holdings
HRI
$5.02B
| $31K | ﹤0.01% |
300
-1,600
| -84% | -$178K |
|
|
7016
PUT
Herc Holdings
HRI
$5.02B
| $31K | ﹤0.01% |
300
-300
| -50% | -$33.4K |
|
|
JMIA
7017
Jumia Technologies
JMIA
$737M
| $31K | ﹤0.01% |
5,499
-19,722
| -78% | -$134K |
|
|
KC
7018
PUT
Kingsoft Cloud Holdings
KC
$3.34B
| $31K | ﹤0.01% |
15,700
+13,700
| +685% | +$42.7K |
|
7019
Karyopharm Therapeutics
KPTI
$43.5M
| $31K | ﹤0.01% |
388
-70
| -15% | -$5.23K |
|
7020
CALL
MGP Ingredients
MGPI
$379M
| $31K | ﹤0.01% |
+300
| New | +$32.2K |
|
7021
CALL
Everspin Technologies
MRAM
$341M
| $31K | ﹤0.01% |
5,500
-14,400
| -72% | -$91.7K |
|
|
MTLS
7022
CALL
Materialise
MTLS
$368M
| $31K | ﹤0.01% |
2,900
-100
| -3% | -$1.27K |
|
7023
PUT
NewtekOne
NEWT
$428M
| $31K | ﹤0.01% |
1,900
-4,900
| -72% | -$100K |
|
|
OLO
7024
DELISTED
Olo Inc
OLO
| $31K | ﹤0.01% |
+3,986
| New | +$38.1K |
|
|
OLP
7025
CALL
One Liberty Properties
OLP
$530M
| $31K | ﹤0.01% |
1,500
+800
| +114% | +$20.3K |
|
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.