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 | |
|---|---|---|---|---|---|---|
|
PLL
3076
CALL
DELISTED
Piedmont Lithium
PLL
| $700K | ﹤0.01% |
13,100
+2,000
| +18% | +$103K |
|
3077
PUT
Taylor Morrison
TMHC
| $699K | ﹤0.01% |
30,000
+11,800
| +65% | +$306K |
|
3078
CALL
McCormick & Company Non-Voting
MKC
$13.9B
| $698K | ﹤0.01% |
9,800
+2,700
| +38% | +$226K |
|
3079
PUT
FMC
FMC
$1.37B
| $697K | ﹤0.01% |
6,600
-5,400
| -45% | -$583K |
|
3080
CALL
Global Net Lease
GNL
$1.86B
| $697K | ﹤0.01% |
65,500
+46,300
| +241% | +$645K |
|
3081
CALL
Signet Jewelers
SIG
$3.81B
| $697K | ﹤0.01% |
12,200
-13,600
| -53% | -$819K |
|
3082
Tilray
TLRY
$498M
| $696K | ﹤0.01% |
25,325
-7,193
| -22% | -$252K |
|
3083
PUT
Nordic American Tanker
NAT
$1.35B
| $695K | ﹤0.01% |
260,400
+145,700
| +127% | +$387K |
|
|
NVTA
3084
CALL
DELISTED
Invitae Corporation
NVTA
| $695K | ﹤0.01% |
282,600
+158,400
| +128% | +$481K |
|
3085
CALL
United Natural Foods
UNFI
$3.07B
| $694K | ﹤0.01% |
20,200
-4,700
| -19% | -$200K |
|
|
CCEC
3086
Capital Clean Energy Carriers
CCEC
$1.36B
| $694K | ﹤0.01% |
51,900
-54,939
| -51% | -$800K |
|
|
CVSA
3087
CALL
Covista Inc
CVSA
$4.3B
| $692K | ﹤0.01% |
19,000
+1,500
| +9% | +$57.3K |
|
3088
iQIYI
IQ
$1.21B
| $692K | ﹤0.01% |
+255,590
| New | +$948K |
|
|
ALLG
3089
CALL
DELISTED
Allego N.V.
ALLG
| $691K | ﹤0.01% |
+158,600
| New | +$704K |
|
3090
Caleres
CAL
$447M
| $690K | ﹤0.01% |
+28,523
| New | +$754K |
|
3091
PUT
Cars.com
CARS
$705M
| $690K | ﹤0.01% |
60,000
-58,000
| -49% | -$685K |
|
3092
PUT
Lakeland Industries
LAKE
$106M
| $690K | ﹤0.01% |
59,900
-100
| -0.2% | -$1.43K |
|
3093
PUT
B&G Foods
BGS
$297M
| $689K | ﹤0.01% |
41,800
+17,600
| +73% | +$391K |
|
3094
CALL
Buckle
BKE
$2.35B
| $687K | ﹤0.01% |
21,700
+7,000
| +48% | +$220K |
|
|
KZR
3095
PUT
DELISTED
Kezar Life Sciences
KZR
| $687K | ﹤0.01% |
7,990
-3,040
| -28% | -$295K |
|
3096
CALL
LivePerson
LPSN
$22.9M
| $687K | ﹤0.01% |
4,867
-1,480
| -23% | -$284K |
|
3097
CALL
Amcor
AMCR
$21.6B
| $685K | ﹤0.01% |
12,780
+3,860
| +43% | +$237K |
|
3098
PUT
Murphy Oil
MUR
$5.25B
| $685K | ﹤0.01% |
19,500
-30,900
| -61% | -$1.07M |
|
3099
CALL
Saia
SAIA
$10.9B
| $684K | ﹤0.01% |
3,600
+2,600
| +260% | +$551K |
|
3100
Concentrix
CNXC
$1.55B
| $683K | ﹤0.01% |
+6,125
| New | +$784K |
|
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.