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 | |
|---|---|---|---|---|---|---|
|
GTY
4251
CALL
Getty Realty Corp
GTY
$2.16B
| $196K | ﹤0.01% |
5,800
+1,100
| +23% | +$34.7K |
|
4252
PUT
Medifast
MED
$107M
| $196K | ﹤0.01% |
1,700
-1,300
| -43% | -$151K |
|
|
CSSE
4253
CALL
DELISTED
Chicken Soup for the Soul Entertainment, Inc. Class A Common Stock
CSSE
| $196K | ﹤0.01% |
38,300
-87,000
| -69% | -$553K |
|
4254
CALL
Bit Digital
BTBT
$428M
| $195K | ﹤0.01% |
326,400
+33,600
| +11% | +$31.4K |
|
4255
Fusion Fuel Green
HTOO
$8.51M
| $195K | ﹤0.01% |
1,261
+466
| +59% | +$73.2K |
|
4256
PUT
Oxford Industries
OXM
$581M
| $195K | ﹤0.01% |
2,100
-13,100
| -86% | -$1.31M |
|
|
RDFN
4257
CALL
DELISTED
Redfin
RDFN
| $195K | ﹤0.01% |
46,200
-268,400
| -85% | -$1.26M |
|
|
WCN
4258
Waste Connections
WCN
$43.6B
| $195K | ﹤0.01% |
+1,474
| New | +$200K |
|
|
FSP
4259
Franklin Street Properties
FSP
$49.8M
| $194K | ﹤0.01% |
71,261
+48,717
| +216% | +$135K |
|
4260
PUT
Verisk Analytics
VRSK
$27.9B
| $194K | ﹤0.01% |
1,100
-500
| -31% | -$87.9K |
|
|
DX
4261
CALL
Dynex Capital
DX
$3.17B
| $193K | ﹤0.01% |
15,200
-8,900
| -37% | -$110K |
|
4262
CALL
H.B. Fuller
FUL
$3B
| $193K | ﹤0.01% |
+2,700
| New | +$195K |
|
|
IGMS
4263
DELISTED
IGM Biosciences
IGMS
| $193K | ﹤0.01% |
11,383
-20,385
| -64% | -$408K |
|
4264
PUT
Kilroy Realty
KRC
$4.59B
| $193K | ﹤0.01% |
5,000
+4,700
| +1,567% | +$194K |
|
|
TEAD
4265
PUT
Teads Holding Co
TEAD
$76.2M
| $193K | ﹤0.01% |
53,400
-99,500
| -65% | -$390K |
|
4266
Zillow
Z
$7.78B
| $193K | ﹤0.01% |
5,999
-195,604
| -97% | -$6.48M |
|
|
DSKE
4267
DELISTED
Daseke, Inc. Common Stock
DSKE
| $193K | ﹤0.01% |
34,092
-37,444
| -52% | -$221K |
|
|
ROI
4268
PUT
DELISTED
WISDOMTREE LARGECAP GROWTH FUND
ROI
| $193K | ﹤0.01% |
5,700
+5,600
| +5,600% | +$190K |
|
4269
PUT
Consumer Portfolio Services
CPSS
$209M
| $192K | ﹤0.01% |
21,700
+14,400
| +197% | +$103K |
|
4270
CALL
Globe Life
GL
$14B
| $192K | ﹤0.01% |
1,600
-1,500
| -48% | -$172K |
|
|
IMVP
4271
Invesco India ETF
IMVP
$124M
| $192K | ﹤0.01% |
9,037
+8,908
| +6,905% | +$215K |
|
|
SCPH
4272
DELISTED
scPharmaceuticals
SCPH
| $192K | ﹤0.01% |
26,849
+5,630
| +27% | +$34.4K |
|
4273
PUT
Astec Industries
ASTE
$1.17B
| $191K | ﹤0.01% |
+4,700
| New | +$190K |
|
4274
PUT
Corsair Gaming
CRSR
$1.1B
| $191K | ﹤0.01% |
14,100
-58,300
| -81% | -$848K |
|
4275
CALL
FIGS
FIGS
$1.76B
| $191K | ﹤0.01% |
28,500
-168,700
| -86% | -$1.21M |
|
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.