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 | |
|---|---|---|---|---|---|---|
1151
Qfin Holdings
QFIN
$1.61B
| $5.37M | 0.01% |
419,017
+411,384
| +5,390% | +$5.99M |
|
1152
Wheaton Precious Metals
WPM
$50.6B
| $5.37M | 0.01% |
165,942
+45,177
| +37% | +$1.48M |
|
1153
CALL
Royalty Pharma
RPRX
$26.1B
| $5.36M | 0.01% |
133,300
-23,200
| -15% | -$991K |
|
1154
CALL
monday.com
MNDY
$3.27B
| $5.35M | 0.01% |
47,200
+43,200
| +1,080% | +$5.12M |
|
|
NOVA
1155
CALL
DELISTED
Sunnova Energy
NOVA
| $5.34M | 0.01% |
241,800
+32,700
| +16% | +$793K |
|
1156
PUT
Manhattan Associates
MANH
$8.97B
| $5.32M | 0.01% |
40,000
+37,000
| +1,233% | +$5.01M |
|
1157
Caterpillar
CAT
$409B
| $5.31M | 0.01% |
+32,345
| New | +$5.91M |
|
|
GRMN
1158
CALL
Garmin
GRMN
$46.9B
| $5.3M | 0.01% |
66,000
-21,500
| -25% | -$2.03M |
|
1159
CALL
QuantumScape Corp
QS
$3B
| $5.3M | 0.01% |
630,200
+188,000
| +43% | +$2.02M |
|
1160
CALL
Albertsons Companies
ACI
$5.4B
| $5.29M | 0.01% |
213,000
+108,300
| +103% | +$2.96M |
|
1161
PUT
SS&C Technologies
SSNC
$17.8B
| $5.29M | 0.01% |
110,900
+109,600
| +8,431% | +$6.31M |
|
1162
PUT
LKQ Corp
LKQ
$6.58B
| $5.29M | 0.01% |
112,300
+68,100
| +154% | +$3.56M |
|
1163
Wynn Resorts
WYNN
$10.1B
| $5.28M | 0.01% |
+83,733
| New | +$5.22M |
|
1164
CALL
NetEase
NTES
$76.5B
| $5.27M | 0.01% |
69,700
-62,700
| -47% | -$5.52M |
|
1165
PUT
Cenovus Energy
CVE
$54.6B
| $5.27M | 0.01% |
342,700
+52,300
| +18% | +$929K |
|
1166
PUT
Brookfield
BN
$102B
| $5.25M | 0.01% |
281,850
+190,745
| +209% | +$4.94M |
|
1167
Macy's
M
$6.15B
| $5.24M | 0.01% |
334,566
+256,432
| +328% | +$4.54M |
|
1168
PUT
Molson Coors Class B
TAP
$7.68B
| $5.24M | 0.01% |
109,200
-2,200
| -2% | -$119K |
|
1169
CALL
e.l.f. Beauty
ELF
$4.56B
| $5.24M | 0.01% |
139,200
+47,200
| +51% | +$1.7M |
|
1170
PUT
Capri Holdings
CPRI
$1.77B
| $5.23M | 0.01% |
136,000
-45,300
| -25% | -$2.12M |
|
1171
CALL
Lamb Weston
LW
$6.85B
| $5.22M | 0.01% |
67,500
-44,400
| -40% | -$3.47M |
|
1172
Starbucks
SBUX
$118B
| $5.22M | 0.01% |
61,916
-163,667
| -73% | -$13.9M |
|
1173
PUT
Alcon
ALC
$33.1B
| $5.21M | 0.01% |
89,600
+75,000
| +514% | +$5.2M |
|
1174
PUT
Guardant Health
GH
$19.5B
| $5.21M | 0.01% |
96,800
+47,800
| +98% | +$2.45M |
|
|
MMP
1175
CALL
DELISTED
Magellan Midstream Partners, L.P.
MMP
| $5.21M | 0.01% |
109,600
+36,600
| +50% | +$1.84M |
|
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.