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 |
Amazon
AMZN
|
+$170M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$71.3M |
| 3 |
AT&T
T
|
+$44.2M |
| 4 |
Meta Platforms (Facebook)
META
|
+$37.1M |
| 5 |
iShares MSCI Emerging Markets ETF
EEM
|
+$34.4M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Microsoft
MSFT
|
+$94.3M |
| 2 |
JPMorgan Chase
JPM
|
+$68.2M |
| 3 |
Citigroup
C
|
+$62.8M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
+$50.9M |
| 5 |
SPDR Gold Trust
GLD
|
+$46.3M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Consumer Discretionary | 0.38% |
| 2 | Technology | 0.35% |
| 3 | Communication Services | 0.24% |
| 4 | Healthcare | 0.2% |
| 5 | Consumer Staples | 0.13% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
2226
AB InBev
BUD
$158B
| $1.29M | ﹤0.01% |
+21,574
| New | +$1.16M |
|
2227
Masco
MAS
$16B
| $1.29M | ﹤0.01% |
27,765
+6,217
| +29% | +$300K |
|
2228
Occidental Petroleum
OXY
$57B
| $1.29M | ﹤0.01% |
20,542
+14,542
| +242% | +$990K |
|
2229
PUT
Polaris
PII
$4.15B
| $1.29M | ﹤0.01% |
12,800
-38,800
| -75% | -$4.04M |
|
2230
PUT
Omega Healthcare
OHI
$15.4B
| $1.29M | ﹤0.01% |
46,200
-29,600
| -39% | -$893K |
|
|
SUM
2231
PUT
DELISTED
Summit Materials, Inc. Class A Common Stock
SUM
| $1.29M | ﹤0.01% |
+45,500
| New | +$1.25M |
|
2232
PUT
Invesco Mortgage Capital
IVR
$776M
| $1.29M | ﹤0.01% |
101,300
+73,200
| +260% | +$895K |
|
2233
iShares Russell 1000 Growth ETF
IWF
$122B
| $1.29M | ﹤0.01% |
+24,076
| New | +$1.32M |
|
2234
PUT
Floor & Decor
FND
$5.81B
| $1.29M | ﹤0.01% |
18,500
-22,700
| -55% | -$1.65M |
|
2235
PUT
Melco Resorts & Entertainment
MLCO
$2.1B
| $1.29M | ﹤0.01% |
112,000
+77,300
| +223% | +$627K |
|
2236
PUT
iShares S&P GSCI Commodity-Indexed Trust
GSG
$1.02B
| $1.29M | ﹤0.01% |
60,600
+41,300
| +214% | +$887K |
|
|
VRNT
2237
CALL
DELISTED
Verint Systems
VRNT
| $1.28M | ﹤0.01% |
35,400
+32,300
| +1,042% | +$1.17M |
|
2238
CALL
Denison Mines
DNN
$2.63B
| $1.28M | ﹤0.01% |
1,116,100
-330,300
| -23% | -$391K |
|
2239
PUT
Factset
FDS
$9.05B
| $1.28M | ﹤0.01% |
3,200
+2,100
| +191% | +$894K |
|
2240
CALL
Equifax
EFX
$20.3B
| $1.28M | ﹤0.01% |
6,600
+2,400
| +57% | +$439K |
|
2241
Ericsson
ERIC
$30.7B
| $1.28M | ﹤0.01% |
+219,418
| New | +$1.32M |
|
|
GPP
2242
CALL
DELISTED
Green Plains Partners LP
GPP
| $1.28M | ﹤0.01% |
98,900
-41,500
| -30% | -$518K |
|
2243
PUT
Blink Charging
BLNK
$75.2M
| $1.28M | ﹤0.01% |
116,700
+19,300
| +20% | +$263K |
|
2244
CALL
Cracker Barrel
CBRL
$1.2B
| $1.28M | ﹤0.01% |
13,500
-24,900
| -65% | -$2.59M |
|
2245
CALL
Sweetgreen
SG
$713M
| $1.28M | ﹤0.01% |
148,900
+88,400
| +146% | +$1.29M |
|
|
AVEO
2246
CALL
DELISTED
AVEO Pharmaceuticals, Inc.
AVEO
| $1.27M | ﹤0.01% |
85,200
+27,900
| +49% | +$386K |
|
|
DM
2247
PUT
DELISTED
Desktop Metal, Inc.
DM
| $1.27M | ﹤0.01% |
93,550
-31,100
| -25% | -$648K |
|
2248
TechnipFMC
FTI
$30.6B
| $1.27M | ﹤0.01% |
104,315
-41,642
| -29% | -$466K |
|
2249
Renaissance IPO ETF
IPO
$154M
| $1.27M | ﹤0.01% |
+51,364
| New | +$1.38M |
|
2250
CALL
SM Energy
SM
$7.96B
| $1.27M | ﹤0.01% |
36,400
-8,300
| -19% | -$345K |
|
Similar funds
Simplex Trading's Q4 2022 Portfolio in Review
As of Q4 2022, Simplex Trading held 11,206 positions worth $91.9B, up 3.9% from $88.5B the previous quarter. Its ten largest holdings account for 34% of the portfolio.
Simplex Trading's Q4 2022 filing shows 1,219 new, 3,365 increased, 4,370 reduced and 1,942 closed positions. Its largest new stake was iShares MSCI Emerging Markets ETF: 932,756 shares worth $35.4M. The largest sale was Microsoft, an estimated $94.3M.
By sector, the portfolio is most concentrated in Consumer Discretionary at 0.38% of assets, up from 0.3% a quarter earlier, followed by Technology and Communication Services.
- Simplex Trading's largest Q4 2022 buy was iShares MSCI Emerging Markets ETF: 932,756 shares worth $35.4M.
- Simplex Trading added most to Amazon in Q4 2022, an estimated $170M increase.
- Simplex Trading's biggest Q4 2022 reduction was Microsoft, cutting an estimated $94.3M.
- Simplex Trading fully exited JPMorgan Chase in Q4 2022, selling an estimated $68.2M.
- Simplex Trading's ten largest holdings make up 34% of its $91.9B portfolio in Q4 2022.
- Simplex Trading opened 1,219 new positions and closed 1,942 in Q4 2022.
- Simplex Trading's portfolio value rose 3.9% quarter-over-quarter to $91.9B.
Based on Simplex Trading's 13F filing for Q4 2022, filed 2 Feb 2023.