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 | |
|---|---|---|---|---|---|---|
|
BNY
1026
PUT
Bank of New York Mellon
BNY
$108B
| $6.59M | 0.01% |
171,000
-6,300
| -4% | -$269K |
|
1027
CALL
Bausch Health
BHC
$1.65B
| $6.58M | 0.01% |
954,500
+260,800
| +38% | +$1.81M |
|
1028
CALL
Allstate
ALL
$66.9B
| $6.58M | 0.01% |
52,800
+21,100
| +67% | +$2.62M |
|
1029
CALL
SAP
SAP
$187B
| $6.57M | 0.01% |
80,900
-106,900
| -57% | -$9.44M |
|
1030
CALL
Seagate
STX
$193B
| $6.55M | 0.01% |
123,100
-48,800
| -28% | -$3.53M |
|
1031
CALL
Crown Castle
CCI
$32.7B
| $6.55M | 0.01% |
45,300
-11,600
| -20% | -$1.99M |
|
1032
State Street SPDR S&P Biotech ETF
XBI
$10.1B
| $6.54M | 0.01% |
+82,521
| New | +$6.96M |
|
1033
CALL
Tapestry
TPR
$28.8B
| $6.52M | 0.01% |
229,400
+68,900
| +43% | +$2.3M |
|
1034
PUT
RingCentral
RNG
$4.05B
| $6.49M | 0.01% |
162,500
+67,200
| +71% | +$3.22M |
|
1035
CALL
SentinelOne
S
$6.22B
| $6.47M | 0.01% |
253,300
+24,000
| +10% | +$630K |
|
|
HZNP
1036
CALL
DELISTED
Horizon Therapeutics Public Limited Company Ordinary Shares
HZNP
| $6.46M | 0.01% |
104,400
+73,500
| +238% | +$5.14M |
|
1037
PUT
Bunge Global
BG
$23.6B
| $6.45M | 0.01% |
78,100
+15,700
| +25% | +$1.46M |
|
1038
CALL
Gartner
IT
$9.41B
| $6.45M | 0.01% |
23,300
+1,500
| +7% | +$421K |
|
|
OSH
1039
CALL
DELISTED
Oak Street Health, Inc.
OSH
| $6.41M | 0.01% |
261,300
+151,700
| +138% | +$4.01M |
|
1040
CALL
Progressive
PGR
$124B
| $6.4M | 0.01% |
55,100
-46,100
| -46% | -$5.55M |
|
|
LNW
1041
CALL
DELISTED
Light & Wonder
LNW
| $6.39M | 0.01% |
149,100
+128,000
| +607% | +$6.33M |
|
1042
PUT
PennyMac Financial
PFSI
$4.38B
| $6.39M | 0.01% |
148,900
-1,300
| -0.9% | -$68K |
|
1043
CALL
Veru
VERU
$36.1M
| $6.38M | 0.01% |
55,370
+32,350
| +141% | +$4.67M |
|
1044
PUT
ClearShares Piton Intermediate Fixed Income ETF
PIFI
$97.5M
| $6.36M | 0.01% |
422,900
-143,300
| -25% | -$13.3M |
|
1045
CALL
Arbor Realty Trust
ABR
$960M
| $6.34M | 0.01% |
551,000
+375,400
| +214% | +$5.52M |
|
1046
CALL
Citizens Financial Group
CFG
$30.4B
| $6.33M | 0.01% |
184,400
+48,200
| +35% | +$1.78M |
|
1047
PUT
Ball Corp
BALL
$17B
| $6.3M | 0.01% |
130,300
-173,100
| -57% | -$10.6M |
|
1048
CALL
Starwood Property Trust
STWD
$6.12B
| $6.27M | 0.01% |
344,300
+138,500
| +67% | +$3.14M |
|
1049
CALL
ALPS REIT Dividend Dogs ETF
RDOG
$11.6M
| $6.27M | 0.01% |
171,100
-26,200
| -13% | -$1.14M |
|
1050
PUT
XPeng
XPEV
$11.8B
| $6.25M | 0.01% |
523,300
+133,800
| +34% | +$2.88M |
|
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.