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 | |
|---|---|---|---|---|---|---|
|
JOYY
3276
CALL
JOYY Inc
JOYY
$3.77B
| $587K | ﹤0.01% |
22,600
+16,000
| +242% | +$439K |
|
|
SMAR
3277
PUT
DELISTED
Smartsheet Inc.
SMAR
| $587K | ﹤0.01% |
17,100
-16,700
| -49% | -$566K |
|
|
AZEK
3278
CALL
DELISTED
The AZEK Co
AZEK
| $586K | ﹤0.01% |
35,300
+7,500
| +27% | +$143K |
|
3279
PUT
Consensus Cloud Solutions
CCSI
$683M
| $586K | ﹤0.01% |
12,400
+10,100
| +439% | +$520K |
|
3280
CALL
Barclays
BCS
$91B
| $585K | ﹤0.01% |
91,500
-29,000
| -24% | -$223K |
|
3281
CALL
Red Rock Resorts
RRR
$3.87B
| $585K | ﹤0.01% |
17,100
+8,100
| +90% | +$307K |
|
|
CMPS
3282
CALL
Compass Pathways
CMPS
$1.46B
| $584K | ﹤0.01% |
54,500
+45,500
| +506% | +$682K |
|
3283
CALL
Omnicell
OMCL
$1.96B
| $583K | ﹤0.01% |
6,700
-19,800
| -75% | -$2.08M |
|
|
ORGN
3284
CALL
DELISTED
Origin Materials
ORGN
| $583K | ﹤0.01% |
3,770
+523
| +16% | +$92.6K |
|
3285
PUT
Oshkosh
OSK
$9.51B
| $583K | ﹤0.01% |
8,300
+4,800
| +137% | +$390K |
|
|
PACW
3286
DELISTED
PacWest Bancorp
PACW
| $583K | ﹤0.01% |
+25,812
| New | +$695K |
|
3287
General Dynamics
GD
$106B
| $582K | ﹤0.01% |
2,744
-1,386
| -34% | -$313K |
|
|
RC
3288
CALL
Ready Capital
RC
$261M
| $582K | ﹤0.01% |
57,400
-24,800
| -30% | -$321K |
|
3289
Perrigo
PRGO
$1.43B
| $581K | ﹤0.01% |
16,302
+11,102
| +214% | +$446K |
|
3290
PUT
Corpay
CPAY
$25.1B
| $581K | ﹤0.01% |
3,300
-5,000
| -60% | -$1.07M |
|
|
TBCH
3291
CALL
Turtle Beach Corp
TBCH
$258M
| $581K | ﹤0.01% |
85,300
-156,000
| -65% | -$1.63M |
|
|
FTCV
3292
DELISTED
FinTech Acquisition Corp. V Class A Common Stock
FTCV
| $580K | ﹤0.01% |
+58,300
| New | +$578K |
|
3293
PUT
Ethan Allen Interiors
ETD
$606M
| $579K | ﹤0.01% |
27,400
+18,400
| +204% | +$430K |
|
3294
Schwab US Dividend Equity ETF
SCHD
$104B
| $579K | ﹤0.01% |
26,181
+2,796
| +12% | +$67.9K |
|
3295
CALL
Alpha and Omega Semiconductor
AOSL
$863M
| $578K | ﹤0.01% |
18,800
+12,500
| +198% | +$463K |
|
3296
AppFolio
APPF
$6.31B
| $578K | ﹤0.01% |
5,529
-1,017
| -16% | -$104K |
|
3297
CALL
Arrowhead Research
ARWR
$12.1B
| $578K | ﹤0.01% |
17,500
+5,100
| +41% | +$206K |
|
|
JMIA
3298
PUT
Jumia Technologies
JMIA
$741M
| $578K | ﹤0.01% |
99,600
-14,700
| -13% | -$100K |
|
3299
PUT
PRA Group
PRAA
$688M
| $578K | ﹤0.01% |
+17,600
| New | +$655K |
|
3300
CALL
Quad
QUAD
$434M
| $578K | ﹤0.01% |
226,000
-103,300
| -31% | -$338K |
|
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.