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 | |
|---|---|---|---|---|---|---|
726
CALL
S&P Global
SPGI
$124B
| $16.1M | 0.01% |
36,100
-60,200
| -63% | -$25.8M |
|
727
CALL
Wheaton Precious Metals
WPM
$50.1B
| $16.1M | 0.01% |
306,400
-336,100
| -52% | -$18M |
|
728
CALL
Sysco
SYY
$38.8B
| $16M | 0.01% |
224,700
+13,100
| +6% | +$979K |
|
729
CALL
AutoZone
AZO
$47.6B
| $16M | 0.01% |
5,400
-2,200
| -29% | -$6.44M |
|
730
McDonald's
MCD
$186B
| $16M | 0.01% |
62,671
+59,971
| +2,221% | +$15.9M |
|
731
PUT
ProShares Ether Strategy ETF
EETH
$54.9M
| $15.9M | 0.01% |
417,300
+415,300
| +20,765% | +$30.1M |
|
732
CALL
CF Industries
CF
$19.3B
| $15.9M | 0.01% |
214,400
-13,800
| -6% | -$1.07M |
|
733
CALL
EQT Corp
EQT
$33.5B
| $15.9M | 0.01% |
429,600
+172,500
| +67% | +$6.76M |
|
734
Freeport-McMoran
FCX
$91.2B
| $15.9M | 0.01% |
326,831
+91,424
| +39% | +$4.61M |
|
735
CALL
Hasbro
HAS
$12.3B
| $15.8M | 0.01% |
270,900
-218,800
| -45% | -$13M |
|
736
United Airlines
UAL
$36.9B
| $15.8M | 0.01% |
323,713
+85,246
| +36% | +$4.29M |
|
737
CALL
Advance Auto Parts
AAP
$3.23B
| $15.7M | 0.01% |
248,100
-99,000
| -29% | -$7.09M |
|
738
CALL
Transocean
RIG
$5.9B
| $15.6M | 0.01% |
2,915,400
+105,500
| +4% | +$610K |
|
739
CALL
Petrobras
PBR
$123B
| $15.5M | 0.01% |
1,076,400
-645,300
| -37% | -$10M |
|
740
CALL
Lyft
LYFT
$5.3B
| $15.5M | 0.01% |
1,102,000
-119,800
| -10% | -$1.95M |
|
|
PARA
741
PUT
DELISTED
Paramount Global Class B
PARA
| $15.5M | 0.01% |
1,491,100
-85,100
| -5% | -$997K |
|
|
SCIU
742
PUT
DELISTED
Global X Scientific Beta US ETF
SCIU
| $15.5M | 0.01% |
502,700
-5,100
| -1% | -$157K |
|
743
PUT
Fair Isaac
FICO
$27.7B
| $15.5M | 0.01% |
10,400
-1,800
| -15% | -$2.33M |
|
744
PUT
Kimberly-Clark
KMB
$35.5B
| $15.5M | 0.01% |
112,000
+25,600
| +30% | +$3.42M |
|
745
PUT
FTAI Aviation
FTAI
$22.5B
| $15.5M | 0.01% |
149,800
-132,900
| -47% | -$10.6M |
|
746
PUT
Realty Income
O
$60.4B
| $15.4M | 0.01% |
292,200
-54,600
| -16% | -$2.92M |
|
747
CALL
ON Semiconductor
ON
$34.8B
| $15.4M | 0.01% |
225,000
-281,200
| -56% | -$19.7M |
|
748
PUT
General Dynamics
GD
$103B
| $15.4M | 0.01% |
53,100
-3,600
| -6% | -$1.05M |
|
|
749
CALL
FTAI Aviation
FTAI
$22.5B
| $15.4M | 0.01% |
148,800
+100,700
| +209% | +$8M |
|
750
CALL
Intercontinental Exchange
ICE
$80.5B
| $15.3M | 0.01% |
112,100
+6,900
| +7% | +$927K |
|
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.