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 | |
|---|---|---|---|---|---|---|
|
WEBR
3901
PUT
DELISTED
Weber Inc.
WEBR
| $260K | ﹤0.01% |
32,300
-273,000
| -89% | -$1.91M |
|
3902
CALL
Getty Images
GETY
$171M
| $259K | ﹤0.01% |
46,800
-12,900
| -22% | -$72.2K |
|
3903
PUT
Legend Biotech
LEGN
$3.68B
| $259K | ﹤0.01% |
5,200
+400
| +8% | +$19.4K |
|
|
PCH
3904
CALL
DELISTED
PotlatchDeltic
PCH
| $259K | ﹤0.01% |
5,900
+2,800
| +90% | +$127K |
|
3905
CALL
RXO
RXO
$3.73B
| $259K | ﹤0.01% |
+15,100
| New | +$268K |
|
|
TRUE
3906
DELISTED
TrueCar
TRUE
| $259K | ﹤0.01% |
+103,234
| New | +$215K |
|
3907
CALL
BRC Inc
BRCC
$118M
| $258K | ﹤0.01% |
42,300
-22,600
| -35% | -$147K |
|
3908
Emcor
EME
$31.4B
| $258K | ﹤0.01% |
+1,745
| New | +$248K |
|
3909
Kohl's
KSS
$2.16B
| $258K | ﹤0.01% |
10,237
-161,246
| -94% | -$4.57M |
|
3910
iShares MSCI Hong Kong ETF
EWH
$1.24B
| $257K | ﹤0.01% |
+12,269
| New | +$235K |
|
3911
PUT
Clean Energy Fuels
CLNE
$421M
| $256K | ﹤0.01% |
49,400
+6,800
| +16% | +$41.8K |
|
3912
CALL
LiveWire
LVWR
$399M
| $256K | ﹤0.01% |
52,900
-25,600
| -33% | -$171K |
|
3913
CALL
Regis Corp
RGS
$68.2M
| $256K | ﹤0.01% |
10,525
-1,365
| -11% | -$32.5K |
|
|
ARNC
3914
PUT
DELISTED
Arconic Corporation
ARNC
| $256K | ﹤0.01% |
12,100
-53,200
| -81% | -$1.11M |
|
3915
PUT
National Beverage
FIZZ
$3.05B
| $255K | ﹤0.01% |
5,500
+2,700
| +96% | +$127K |
|
3916
PUT
Jazz Pharmaceuticals
JAZZ
$16.1B
| $255K | ﹤0.01% |
12,600
-15,700
| -55% | -$2.3M |
|
3917
SkinHealth Systems
SKIN
$90.5M
| $255K | ﹤0.01% |
28,078
-50,828
| -64% | -$549K |
|
|
OSG
3918
CALL
DELISTED
Overseas Shipholding Group Inc.
OSG
| $255K | ﹤0.01% |
88,500
+33,700
| +61% | +$97.8K |
|
|
VSTO
3919
PUT
DELISTED
Vista Outdoor Inc.
VSTO
| $255K | ﹤0.01% |
10,500
-158,800
| -94% | -$4.17M |
|
3920
HF Sinclair
DINO
$16.1B
| $254K | ﹤0.01% |
4,913
+2,636
| +116% | +$152K |
|
3921
Funko
FNKO
$355M
| $254K | ﹤0.01% |
+23,350
| New | +$328K |
|
3922
Smith & Wesson
SWBI
$657M
| $254K | ﹤0.01% |
29,333
-20,460
| -41% | -$215K |
|
|
UNIT
3923
CALL
Uniti Group
UNIT
$2.53B
| $254K | ﹤0.01% |
46,100
-109,600
| -70% | -$752K |
|
3924
CALL
Adient
ADNT
$1.7B
| $253K | ﹤0.01% |
7,300
-4,000
| -35% | -$140K |
|
3925
CALL
Agilysys
AGYS
$3.12B
| $253K | ﹤0.01% |
3,200
+3,100
| +3,100% | +$198K |
|
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.