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 | |
|---|---|---|---|---|---|---|
751
PUT
Veeva Systems
VEEV
$29.4B
| $12.6M | 0.01% |
78,300
+35,800
| +84% | +$6.12M |
|
|
COUP
752
DELISTED
Coupa Software Incorporated
COUP
| $12.6M | 0.01% |
159,522
+158,632
| +17,824% | +$9.49M |
|
753
PUT
Waste Management
WM
$95.3B
| $12.6M | 0.01% |
80,200
+21,900
| +38% | +$3.52M |
|
754
CALL
Kroger
KR
$34.1B
| $12.6M | 0.01% |
282,200
-32,200
| -10% | -$1.48M |
|
755
CALL
SolarEdge
SEDG
$2.75B
| $12.6M | 0.01% |
44,400
-11,300
| -20% | -$3M |
|
756
PUT
Travelers Companies
TRV
$78.6B
| $12.5M | 0.01% |
66,700
-17,600
| -21% | -$3.17M |
|
757
PUT
Madrigal Pharmaceuticals
MDGL
$12.6B
| $12.5M | 0.01% |
42,900
+36,600
| +581% | +$3.58M |
|
758
CALL
Clorox
CLX
$11.4B
| $12.4M | 0.01% |
88,500
-5,500
| -6% | -$781K |
|
759
Uber
UBER
$140B
| $12.3M | 0.01% |
+498,532
| New | +$13.6M |
|
760
CALL
Alnylam Pharmaceuticals
ALNY
$35.8B
| $12.3M | 0.01% |
51,700
+32,200
| +165% | +$6.87M |
|
|
SI
761
CALL
DELISTED
Silvergate Capital Corporation
SI
| $12.3M | 0.01% |
705,600
+654,200
| +1,273% | +$26M |
|
762
CALL
CF Industries
CF
$19.3B
| $12.3M | 0.01% |
143,900
-9,600
| -6% | -$975K |
|
763
PUT
KE Holdings
BEKE
$17.8B
| $12.2M | 0.01% |
876,700
+449,600
| +105% | +$6.25M |
|
764
Warner Bros
WBD
$65.3B
| $12.2M | 0.01% |
1,282,604
+1,282,079
| +244,206% | +$14.5M |
|
765
CALL
Burlington
BURL
$21.6B
| $12.1M | 0.01% |
59,600
+8,000
| +16% | +$1.28M |
|
766
PUT
HubSpot
HUBS
$9.94B
| $12.1M | 0.01% |
41,700
+4,200
| +11% | +$1.19M |
|
|
UNVR
767
CALL
DELISTED
Univar Solutions Inc.
UNVR
| $12M | 0.01% |
377,600
+370,000
| +4,868% | +$10.6M |
|
768
PUT
Bath & Body Works
BBWI
$3.89B
| $12M | 0.01% |
288,700
-180,800
| -39% | -$6.74M |
|
769
CALL
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
$165M
| $12M | 0.01% |
54,388
| – | – |
|
770
Invesco DB US Dollar Index Bullish Fund
UUP
$434M
| $12M | 0.01% |
+429,854
| New | +$12.5M |
|
771
PUT
Cadence Design Systems
CDNS
$92B
| $12M | 0.01% |
74,400
+13,700
| +23% | +$2.19M |
|
772
PUT
Hershey
HSY
$34.8B
| $11.9M | 0.01% |
51,400
+23,200
| +82% | +$5.35M |
|
773
CALL
Sunrun
RUN
$2.51B
| $11.9M | 0.01% |
495,100
+79,700
| +19% | +$2.13M |
|
774
CALL
Realty Income
O
$60.4B
| $11.8M | 0.01% |
198,800
+38,900
| +24% | +$2.42M |
|
775
PUT
Cenovus Energy
CVE
$55.4B
| $11.8M | 0.01% |
610,100
+267,400
| +78% | +$5.13M |
|
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.