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 |
NVIDIA
NVDA
|
+$93M |
| 2 |
Citigroup
C
|
+$74.8M |
| 3 |
Pinduoduo
PDD
|
+$50.7M |
| 4 |
Intel
INTC
|
+$47.1M |
| 5 |
Broadcom
AVGO
|
+$46.2M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street Energy Select Sector SPDR ETF
XLE
|
+$94.5M |
| 2 |
Pfizer
PFE
|
+$66.4M |
| 3 |
Boeing
BA
|
+$61.6M |
| 4 |
PayPal
PYPL
|
+$42.2M |
| 5 |
GE Aerospace
GE
|
+$42M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.53% |
| 2 | Consumer Discretionary | 0.29% |
| 3 | Healthcare | 0.21% |
| 4 | Financials | 0.2% |
| 5 | Materials | 0.12% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
4676
ProShares Ether Strategy ETF
EETH
$54.7M
| $194K | ﹤0.01% |
+2,752
| New | +$199K |
|
4677
FerroAtlántica
GSM
$590M
| $194K | ﹤0.01% |
36,302
-53,253
| -59% | -$290K |
|
4678
PUT
IPG Photonics
IPGP
$3.4B
| $194K | ﹤0.01% |
2,300
-1,400
| -38% | -$121K |
|
4679
CALL
Liberty Latin America Class C
LILAK
$1.69B
| $194K | ﹤0.01% |
+22,330
| New | +$167K |
|
4680
RenaissanceRe
RNR
$13.8B
| $194K | ﹤0.01% |
868
-5,087
| -85% | -$1.14M |
|
4681
CALL
Televisa
TV
$1.49B
| $194K | ﹤0.01% |
70,200
+68,500
| +4,029% | +$210K |
|
4682
CALL
Workhorse Group
WKHS
$33.4M
| $194K | ﹤0.01% |
828
+783
| +1,740% | +$411K |
|
|
ALTM
4683
DELISTED
Arcadium Lithium plc
ALTM
| $194K | ﹤0.01% |
57,797
-49,169
| -46% | -$205K |
|
4684
CALL
Banco Bradesco
BBD
$37.4B
| $193K | ﹤0.01% |
86,300
-23,600
| -21% | -$61K |
|
4685
CALL
BRC Inc
BRCC
$122M
| $193K | ﹤0.01% |
31,500
-12,800
| -29% | -$66.6K |
|
|
CAN
4686
Canaan Creative
CAN
$172M
| $193K | ﹤0.01% |
193,649
-220,588
| -53% | -$232K |
|
4687
CALL
HNI Corp
HNI
$3.08B
| $193K | ﹤0.01% |
4,300
+4,100
| +2,050% | +$181K |
|
4688
PUT
Disc Medicine
IRON
$2.81B
| $193K | ﹤0.01% |
4,300
-40,100
| -90% | -$1.36M |
|
4689
PUT
Jack in the Box
JACK
$314M
| $193K | ﹤0.01% |
3,800
-16,800
| -82% | -$943K |
|
4690
CALL
Kaspi.kz JSC
KSPI
$16.6B
| $193K | ﹤0.01% |
+1,500
| New | +$184K |
|
4691
CALL
ABM Industries
ABM
$2.89B
| $192K | ﹤0.01% |
3,800
+500
| +15% | +$23.3K |
|
|
ACRE
4692
PUT
Ares Commercial Real Estate
ACRE
$247M
| $192K | ﹤0.01% |
28,900
-4,600
| -14% | -$31.8K |
|
4693
PUT
Jazz Pharmaceuticals
JAZZ
$16.1B
| $192K | ﹤0.01% |
1,800
-5,300
| -75% | -$583K |
|
4694
TriplePoint Venture Growth BDC
TPVG
$184M
| $192K | ﹤0.01% |
23,969
+21,122
| +742% | +$194K |
|
|
SWN
4695
PUT
DELISTED
Southwestern Energy Company
SWN
| $192K | ﹤0.01% |
28,600
+1,000
| +4% | +$7.3K |
|
|
CERE
4696
PUT
DELISTED
Cerevel Therapeutics Holdings, Inc. Common Stock
CERE
| $192K | ﹤0.01% |
4,700
-200
| -4% | -$8.33K |
|
4697
PUT
Designer Brands
DBI
$315M
| $191K | ﹤0.01% |
28,100
+21,300
| +313% | +$188K |
|
4698
PUT
GXO Logistics
GXO
$5.93B
| $191K | ﹤0.01% |
3,800
+900
| +31% | +$45.4K |
|
4699
iRhythm Holdings
IRTC
$4.02B
| $191K | ﹤0.01% |
1,783
-2,128
| -54% | -$217K |
|
4700
Seadrill
SDRL
$2.59B
| $191K | ﹤0.01% |
3,714
+3,098
| +503% | +$157K |
|
Similar funds
Simplex Trading's Q2 2024 Portfolio in Review
As of Q2 2024, Simplex Trading held 10,213 positions worth $162B, down 6.5% from $173B the previous quarter. Its ten largest holdings account for 50% of the portfolio.
Simplex Trading withdrew a net $19.2B in Q2 2024, closing 1,431 positions and reducing 4,061 holdings. Its most notable exit was Boeing, an estimated $61.6M position sold in full.
By sector, the portfolio is most concentrated in Technology at 0.53% of assets, up from 0.38% a quarter earlier, followed by Consumer Discretionary and Healthcare.
Against the trend, Simplex Trading opened a new position in Citigroup worth $77M.
- Simplex Trading's largest Q2 2024 buy was Citigroup: 1,213,247 shares worth $77M.
- Simplex Trading added most to NVIDIA in Q2 2024, an estimated $93M increase.
- Simplex Trading's biggest Q2 2024 reduction was State Street Energy Select Sector SPDR ETF, cutting an estimated $94.5M.
- Simplex Trading fully exited Boeing in Q2 2024, selling an estimated $61.6M.
- Simplex Trading's ten largest holdings make up 50% of its $162B portfolio in Q2 2024.
- Simplex Trading opened 1,358 new positions and closed 1,431 in Q2 2024.
- Simplex Trading's portfolio value fell 6.5% quarter-over-quarter to $162B.
Based on Simplex Trading's 13F filing for Q2 2024, filed 25 Jul 2024.