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 | |
|---|---|---|---|---|---|---|
|
SVFAU
6651
PUT
DELISTED
SVF Investment Corp. Unit
SVFAU
| $43K | ﹤0.01% |
4,400
+4,200
| +2,100% | +$41.7K |
|
|
AKUS
6652
CALL
DELISTED
Akouos Inc
AKUS
| $43K | ﹤0.01% |
6,500
-4,800
| -42% | -$18K |
|
|
CRHC
6653
DELISTED
Cohn Robbins Holdings Corp.
CRHC
| $43K | ﹤0.01% |
+4,369
| New | +$42.3K |
|
|
ARBK
6654
PUT
Argo Blockchain
ARBK
$41.9M
| $42K | ﹤0.01% |
51
-118
| -70% | -$120K |
|
6655
CALL
Anterix
ATEX
$1.81B
| $42K | ﹤0.01% |
1,200
+1,100
| +1,100% | +$45.7K |
|
6656
BRC Inc
BRCC
$121M
| $42K | ﹤0.01% |
+5,538
| New | +$50.1K |
|
|
BRSP
6657
CALL
BrightSpire Capital
BRSP
$634M
| $42K | ﹤0.01% |
6,800
-7,000
| -51% | -$57.8K |
|
6658
CALL
Coca-Cola Europacific Partners
CCEP
$48.3B
| $42K | ﹤0.01% |
1,000
-29,900
| -97% | -$1.5M |
|
6659
CALL
Certara
CERT
$1.26B
| $42K | ﹤0.01% |
3,200
-13,500
| -81% | -$249K |
|
6660
iShares GSCI Commodity Dynamic Roll Strategy ETF
COMT
$1.18B
| $42K | ﹤0.01% |
1,201
+1,019
| +560% | +$39.1K |
|
6661
PUT
Cardiff Oncology
CRDF
$66.5M
| $42K | ﹤0.01% |
27,400
-27,000
| -50% | -$65K |
|
6662
CALL
America's Car Mart
CRMT
$26.6M
| $42K | ﹤0.01% |
700
+300
| +75% | +$26.9K |
|
6663
PUT
Fulcrum Therapeutics
FULC
$273M
| $42K | ﹤0.01% |
5,300
+2,700
| +104% | +$19.3K |
|
6664
CALL
National CineMedia
NCMI
$376M
| $42K | ﹤0.01% |
6,540
+6,210
| +1,882% | +$74.9K |
|
6665
NETSCOUT
NTCT
$2.96B
| $42K | ﹤0.01% |
1,345
-19,672
| -94% | -$644K |
|
6666
PUT
Porch Group
PRCH
$1.64B
| $42K | ﹤0.01% |
19,100
+600
| +3% | +$1.45K |
|
|
PVL
6667
PUT
Permianville Royalty Trust
PVL
$57.1M
| $42K | ﹤0.01% |
12,800
+2,600
| +25% | +$8.68K |
|
6668
PUT
RenaissanceRe
RNR
$13.3B
| $42K | ﹤0.01% |
300
-1,000
| -77% | -$139K |
|
|
SIFY
6669
PUT
Sify Technologies
SIFY
$1.06B
| $42K | ﹤0.01% |
4,167
-350
| -8% | -$4.44K |
|
6670
Terreno Realty
TRNO
$7.57B
| $42K | ﹤0.01% |
+807
| New | +$48.5K |
|
6671
PUT
Twist Bioscience
TWST
$5.7B
| $42K | ﹤0.01% |
1,200
+1,100
| +1,100% | +$46.7K |
|
6672
PUT
Wyndham Hotels & Resorts
WH
$5.56B
| $42K | ﹤0.01% |
700
-9,000
| -93% | -$603K |
|
6673
Yext
YEXT
$547M
| $42K | ﹤0.01% |
9,562
-83,730
| -90% | -$388K |
|
|
ZH
6674
Zhihu
ZH
$281M
| $42K | ﹤0.01% |
6,706
+3,936
| +142% | +$31.8K |
|
|
BGXX
6675
PUT
DELISTED
Bright Green Corporation Common Stock
BGXX
| $42K | ﹤0.01% |
39,300
+37,100
| +1,686% | +$57.4K |
|
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.