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 | |
|---|---|---|---|---|---|---|
1376
General Motors
GM
$74.7B
| $3.92M | ﹤0.01% |
122,265
-347,740
| -74% | -$12.8M |
|
1377
Direxion Daily Junior Gold Miners Index Bear 2X ETF
JDST
$30.4M
| $3.92M | ﹤0.01% |
1,374
-375
| -21% | -$1.06M |
|
1378
CALL
Boston Beer
SAM
$1.88B
| $3.92M | ﹤0.01% |
12,100
+4,000
| +49% | +$1.38M |
|
1379
CALL
Sabre
SABR
$656M
| $3.92M | ﹤0.01% |
760,200
+193,400
| +34% | +$1.29M |
|
1380
Veru
VERU
$36.1M
| $3.91M | ﹤0.01% |
33,944
+32,842
| +2,980% | +$4.74M |
|
1381
CALL
Sundial Growers
SNDL
$325M
| $3.91M | ﹤0.01% |
1,792,600
+1,574,660
| +723% | +$4.4M |
|
1382
CALL
Alnylam Pharmaceuticals
ALNY
$36.3B
| $3.9M | ﹤0.01% |
19,500
-600
| -3% | -$114K |
|
1383
CALL
Trump Media & Technology Group
DJT
$2.37B
| $3.9M | ﹤0.01% |
232,100
-73,600
| -24% | -$1.94M |
|
1384
CALL
Super Micro Computer
SMCI
$19.5B
| $3.89M | ﹤0.01% |
706,000
+665,000
| +1,622% | +$3.79M |
|
1385
CALL
VICI Properties
VICI
$29.4B
| $3.89M | ﹤0.01% |
130,200
-50,200
| -28% | -$1.66M |
|
1386
PUT
Itaú Unibanco
ITUB
$91.3B
| $3.88M | ﹤0.01% |
854,055
+769,873
| +915% | +$3.28M |
|
|
SI
1387
CALL
DELISTED
Silvergate Capital Corporation
SI
| $3.87M | ﹤0.01% |
51,400
-5,200
| -9% | -$443K |
|
1388
CALL
Wendy's
WEN
$1.33B
| $3.87M | ﹤0.01% |
207,000
+88,200
| +74% | +$1.78M |
|
1389
Fortinet
FTNT
$112B
| $3.87M | ﹤0.01% |
78,676
+30,008
| +62% | +$1.63M |
|
1390
CALL
AngloGold Ashanti
AU
$40.3B
| $3.86M | ﹤0.01% |
279,400
+85,400
| +44% | +$1.22M |
|
1391
CALL
Omega Healthcare
OHI
$15.4B
| $3.86M | ﹤0.01% |
130,900
+17,200
| +15% | +$539K |
|
1392
CALL
RUM Group Inc
RUM
$1.57B
| $3.85M | ﹤0.01% |
314,000
+177,800
| +131% | +$1.95M |
|
1393
Cardinal Health
CAH
$53.4B
| $3.84M | ﹤0.01% |
57,621
+8,838
| +18% | +$560K |
|
|
FITB
1394
PUT
Fifth Third Bancorp
FITB
$52B
| $3.84M | ﹤0.01% |
120,200
+55,400
| +85% | +$1.91M |
|
1395
HDFC Bank
HDB
$119B
| $3.84M | ﹤0.01% |
131,518
+97,182
| +283% | +$2.99M |
|
1396
CALL
Silicon Motion
SIMO
$9.19B
| $3.84M | ﹤0.01% |
58,900
-5,900
| -9% | -$462K |
|
1397
PUT
Brunswick
BC
$5.19B
| $3.83M | ﹤0.01% |
58,600
+48,400
| +475% | +$3.63M |
|
1398
CALL
British American Tobacco
BTI
$132B
| $3.83M | ﹤0.01% |
108,000
-55,300
| -34% | -$2.22M |
|
1399
PUT
Infosys
INFY
$45B
| $3.83M | ﹤0.01% |
225,800
+28,200
| +14% | +$527K |
|
1400
CALL
Hyatt Hotels
H
$17.6B
| $3.83M | ﹤0.01% |
47,300
-16,900
| -26% | -$1.44M |
|
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.