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 | |
|---|---|---|---|---|---|---|
2801
VF Corp
VFC
$6.95B
| $874K | ﹤0.01% |
+29,253
| New | +$1.26M |
|
2802
Maximus
MMS
$3.31B
| $873K | ﹤0.01% |
15,092
-11,602
| -43% | -$723K |
|
2803
CALL
MannKind Corp
MNKD
$1.21B
| $873K | ﹤0.01% |
282,600
+5,600
| +2% | +$21.1K |
|
2804
ProShares UltraShort Dow 30
DXD
$41.6M
| $872K | ﹤0.01% |
14,867
+10,631
| +251% | +$519K |
|
2805
CALL
Liberty Energy
LBRT
$2.9B
| $872K | ﹤0.01% |
68,800
+62,200
| +942% | +$840K |
|
2806
CALL
Universal Health Services
UHS
$9.76B
| $872K | ﹤0.01% |
9,900
-9,100
| -48% | -$940K |
|
|
HZON
2807
CALL
DELISTED
Horizon Acquisition Corporation II
HZON
| $872K | ﹤0.01% |
87,200
-32,300
| -27% | -$322K |
|
2808
CALL
Atkore
ATKR
$2.59B
| $871K | ﹤0.01% |
11,200
+5,000
| +81% | +$432K |
|
2809
CALL
Cimpress
CMPR
$2.43B
| $871K | ﹤0.01% |
+35,600
| New | +$1.22M |
|
2810
First Horizon
FHN
$12.3B
| $871K | ﹤0.01% |
38,047
-513
| -1% | -$11.7K |
|
2811
PUT
Theravance Biopharma
TBPH
$875M
| $871K | ﹤0.01% |
85,900
+79,800
| +1,308% | +$748K |
|
2812
PUT
Terex
TEX
$7.86B
| $871K | ﹤0.01% |
29,300
+900
| +3% | +$29.4K |
|
|
COOP
2813
PUT
DELISTED
Mr. Cooper
COOP
| $870K | ﹤0.01% |
21,500
-275,400
| -93% | -$11.7M |
|
2814
CALL
SouthState Bank Corp
SSB
$10.3B
| $870K | ﹤0.01% |
11,000
+2,500
| +29% | +$201K |
|
2815
PUT
Inspire Medical Systems
INSP
$1.48B
| $869K | ﹤0.01% |
4,900
-1,900
| -28% | -$382K |
|
2816
PUT
Invesco CurrencyShares Swiss Franc Trust
FXF
$410M
| $868K | ﹤0.01% |
9,600
+9,400
| +4,700% | +$870K |
|
2817
NXP Semiconductors
NXPI
$66B
| $866K | ﹤0.01% |
5,875
+3,318
| +130% | +$556K |
|
|
PDCE
2818
PUT
DELISTED
PDC Energy, Inc.
PDCE
| $866K | ﹤0.01% |
15,000
-40,900
| -73% | -$2.51M |
|
|
BBIG
2819
PUT
DELISTED
Vinco Ventures, Inc. Common Stock
BBIG
| $866K | ﹤0.01% |
7,885
-3,465
| -31% | -$69K |
|
|
AGEN
2820
CALL
Agenus
AGEN
$266M
| $865K | ﹤0.01% |
21,511
+18,347
| +580% | +$936K |
|
2821
CALL
Bruker
BRKR
$9.45B
| $864K | ﹤0.01% |
16,300
+7,500
| +85% | +$448K |
|
|
AVYA
2822
CALL
DELISTED
Avaya Holdings Corp. Common Stock
AVYA
| $864K | ﹤0.01% |
543,600
+311,600
| +134% | +$495K |
|
2823
Gen Digital
GEN
$16.6B
| $863K | ﹤0.01% |
42,887
+26,309
| +159% | +$608K |
|
2824
Levi Strauss
LEVI
$9.68B
| $863K | ﹤0.01% |
59,702
+37,039
| +163% | +$661K |
|
2825
LKQ Corp
LKQ
$6.83B
| $862K | ﹤0.01% |
18,294
+136
| +0.7% | +$7.11K |
|
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.