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 | |
|---|---|---|---|---|---|---|
1001
CALL
Paycom
PAYC
$6.78B
| $6.86M | 0.01% |
20,800
+17,000
| +447% | +$5.85M |
|
1002
PUT
Riot Platforms
RIOT
$8.52B
| $6.85M | 0.01% |
977,000
+115,500
| +13% | +$813K |
|
1003
Halliburton
HAL
$27.9B
| $6.81M | 0.01% |
276,527
+67,363
| +32% | +$1.93M |
|
|
P
1004
PUT
Everpure Inc
P
$24.8B
| $6.81M | 0.01% |
248,700
+24,100
| +11% | +$681K |
|
1005
PUT
Sherwin-Williams
SHW
$78.3B
| $6.8M | 0.01% |
33,200
+23,900
| +257% | +$5.66M |
|
1006
Northrop Grumman
NOC
$77B
| $6.78M | 0.01% |
14,411
+3,669
| +34% | +$1.75M |
|
1007
CALL
Macy's
M
$6.15B
| $6.77M | 0.01% |
432,200
-442,900
| -51% | -$7.85M |
|
1008
CALL
Zoetis
ZTS
$31.6B
| $6.76M | 0.01% |
47,300
-46,700
| -50% | -$7.81M |
|
1009
PUT
Boston Properties
BXP
$11B
| $6.75M | 0.01% |
90,100
+82,800
| +1,134% | +$7.04M |
|
1010
PUT
FT Vest Gold Strategy Target Income ETF
IGLD
$507M
| $6.74M | 0.01% |
63,000
+27,500
| +77% | +$520K |
|
1011
PUT
Planet Fitness
PLNT
$4.23B
| $6.73M | 0.01% |
116,800
-19,300
| -14% | -$1.39M |
|
|
JWN
1012
CALL
DELISTED
Nordstrom
JWN
| $6.73M | 0.01% |
402,200
+87,100
| +28% | +$1.82M |
|
1013
CALL
Invesco CurrencyShares Japanese Yen Trust
FXY
$423M
| $6.71M | 0.01% |
103,800
+3,100
| +3% | +$210K |
|
1014
PUT
Air Products & Chemicals
APD
$66.3B
| $6.7M | 0.01% |
28,800
| – | – |
|
|
CYBR
1015
PUT
DELISTED
CyberArk
CYBR
| $6.7M | 0.01% |
44,700
+29,600
| +196% | +$4.23M |
|
1016
PUT
BHP
BHP
$213B
| $6.7M | 0.01% |
170,900
-20,300
| -11% | -$1.07M |
|
1017
Norwegian Cruise Line
NCLH
$8.89B
| $6.7M | 0.01% |
589,474
+43,065
| +8% | +$567K |
|
1018
Prudential Financial
PRU
$41.7B
| $6.69M | 0.01% |
77,990
+46,854
| +150% | +$4.51M |
|
1019
CALL
Vanguard Short-Term Treasury ETF
VGSH
$29.3B
| $6.67M | 0.01% |
98,300
+69,500
| +241% | +$4.07M |
|
1020
CALL
Synopsys
SNPS
$71.5B
| $6.66M | 0.01% |
21,800
-6,800
| -24% | -$2.3M |
|
1021
Dutch Bros
BROS
$8.78B
| $6.65M | 0.01% |
213,575
+213,292
| +75,368% | +$8.03M |
|
1022
CALL
VF Corp
VFC
$6.68B
| $6.63M | 0.01% |
221,600
+105,100
| +90% | +$4.53M |
|
1023
PUT
Eaton
ETN
$157B
| $6.63M | 0.01% |
49,700
-21,700
| -30% | -$3.04M |
|
1024
PUT
Realty Income
O
$61.2B
| $6.62M | 0.01% |
117,800
+22,100
| +23% | +$1.52M |
|
1025
Illumina
ILMN
$29.4B
| $6.61M | 0.01% |
35,597
+24,268
| +214% | +$4.8M |
|
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.