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 | |
|---|---|---|---|---|---|---|
|
SCIU
551
CALL
DELISTED
Global X Scientific Beta US ETF
SCIU
| $17.9M | 0.02% |
691,300
-23,400
| -3% | -$606K |
|
552
CALL
Cleveland-Cliffs
CLF
$6.25B
| $17.7M | 0.02% |
1,317,100
-349,700
| -21% | -$5.82M |
|
553
CALL
Southwest Airlines
LUV
$21.9B
| $17.7M | 0.02% |
574,900
-65,900
| -10% | -$2.47M |
|
554
Valero Energy
VLO
$90.6B
| $17.7M | 0.02% |
165,753
+39,910
| +32% | +$4.39M |
|
555
PUT
Capital One
COF
$123B
| $17.7M | 0.02% |
192,000
+5,400
| +3% | +$575K |
|
556
CALL
Lyft
LYFT
$5.32B
| $17.7M | 0.02% |
1,343,400
+312,200
| +30% | +$4.8M |
|
557
PUT
Li Auto
LI
$12.3B
| $17.7M | 0.02% |
767,200
-128,200
| -14% | -$3.99M |
|
558
CALL
Kohl's
KSS
$2.06B
| $17.6M | 0.02% |
701,400
-1,289,700
| -65% | -$37.6M |
|
559
PUT
Invesco S&P SmallCap Low Volatility ETF
XSLV
$246M
| $17.6M | 0.02% |
575,500
-332,300
| -37% | -$15.1M |
|
560
PUT
MGM Resorts International
MGM
$11.5B
| $17.6M | 0.02% |
590,700
+243,500
| +70% | +$7.92M |
|
561
PUT
Shell
SHEL
$243B
| $17.5M | 0.02% |
351,900
+13,800
| +4% | +$711K |
|
562
Blackstone
BX
$152B
| $17.5M | 0.02% |
+209,199
| New | +$20.3M |
|
|
PARA
563
DELISTED
Paramount Global Class B
PARA
| $17.5M | 0.02% |
917,452
+29,317
| +3% | +$704K |
|
564
PUT
Kroger
KR
$34.2B
| $17.4M | 0.02% |
398,700
-631,800
| -61% | -$30M |
|
|
HES
565
CALL
DELISTED
Hess
HES
| $17.4M | 0.02% |
159,200
+42,000
| +36% | +$4.65M |
|
566
PUT
State Street SPDR Portfolio Europe ETF
SPEU
$707M
| $17.3M | 0.02% |
550,800
+334,000
| +154% | +$10.9M |
|
|
K
567
PUT
DELISTED
Kellanova
K
| $17.2M | 0.02% |
262,416
-123,114
| -32% | -$8.46M |
|
|
SCIU
568
PUT
DELISTED
Global X Scientific Beta US ETF
SCIU
| $17.1M | 0.02% |
544,500
+74,900
| +16% | +$2.35M |
|
569
CALL
Hilton Worldwide
HLT
$72.9B
| $17.1M | 0.02% |
141,800
-6,600
| -4% | -$834K |
|
570
CALL
American Tower
AMT
$76.7B
| $17M | 0.02% |
79,200
-28,400
| -26% | -$7.3M |
|
571
CALL
ChargePoint
CHPT
$140M
| $17M | 0.02% |
57,550
+6,625
| +13% | +$2.01M |
|
572
CALL
Sony
SONY
$122B
| $16.9M | 0.02% |
1,317,500
+1,066,000
| +424% | +$17.1M |
|
573
CALL
Vanguard FTSE Europe ETF
VGK
$29.8B
| $16.9M | 0.02% |
403,600
-5,700
| -1% | -$297K |
|
|
EXE
574
PUT
Expand Energy Corp
EXE
$21.9B
| $16.9M | 0.02% |
178,900
+105,000
| +142% | +$9.86M |
|
575
PUT
Duke Energy
DUK
$101B
| $16.8M | 0.02% |
181,100
-46,000
| -20% | -$4.94M |
|
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.