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 | |
|---|---|---|---|---|---|---|
2326
Campbell Soup
CPB
$6.51B
| $1.76M | ﹤0.01% |
39,035
+22,763
| +140% | +$1.01M |
|
2327
CALL
H&R Block
HRB
$5.18B
| $1.76M | ﹤0.01% |
32,500
-22,800
| -41% | -$1.14M |
|
2328
IMAX
IMAX
$2.38B
| $1.76M | ﹤0.01% |
104,986
+92,172
| +719% | +$1.52M |
|
2329
PUT
FIVE9
FIVN
$1.77B
| $1.76M | ﹤0.01% |
39,900
+4,100
| +11% | +$213K |
|
2330
ProShares Ultra Silver
AGQ
$1.16B
| $1.76M | ﹤0.01% |
47,401
-2,495
| -5% | -$93.7K |
|
2331
Strategy Inc
MSTR
$33.5B
| $1.76M | ﹤0.01% |
+12,760
| New | +$1.84M |
|
2332
PUT
Eldorado Gold
EGO
$8.31B
| $1.75M | ﹤0.01% |
118,500
-34,100
| -22% | -$517K |
|
2333
PUT
Imperial Petroleum
IMPP
$215M
| $1.75M | ﹤0.01% |
451,600
+406,600
| +904% | +$1.51M |
|
2334
Elevance Health
ELV
$81.9B
| $1.75M | ﹤0.01% |
+3,231
| New | +$1.71M |
|
2335
PUT
Community Health Systems
CYH
$385M
| $1.75M | ﹤0.01% |
520,200
+493,500
| +1,848% | +$1.66M |
|
2336
PUT
Exelon
EXC
$48.6B
| $1.75M | ﹤0.01% |
50,500
-25,700
| -34% | -$949K |
|
2337
CALL
Olin
OLN
$2.64B
| $1.74M | ﹤0.01% |
37,000
+7,200
| +24% | +$385K |
|
|
VLD
2338
CALL
DELISTED
Velo3D, Inc.
VLD
| $1.74M | ﹤0.01% |
525,500
+508,757
| +3,039% | +$4.04M |
|
2339
CALL
Credicorp
BAP
$30.9B
| $1.74M | ﹤0.01% |
10,800
-4,300
| -28% | -$711K |
|
2340
PUT
MP Materials
MP
$7.35B
| $1.74M | ﹤0.01% |
136,700
-124,800
| -48% | -$1.96M |
|
|
AY
2341
CALL
DELISTED
Atlantica Sustainable Infrastructure plc Ordinary Shares
AY
| $1.74M | ﹤0.01% |
79,100
-25,700
| -25% | -$539K |
|
2342
PUT
DigitalOcean
DOCN
$14.4B
| $1.73M | ﹤0.01% |
49,900
-55,200
| -53% | -$1.96M |
|
2343
PUT
Fidelity National Financial
FNF
$13.9B
| $1.73M | ﹤0.01% |
35,100
+31,400
| +849% | +$1.58M |
|
2344
CALL
Huntington Bancshares
HBAN
$35.1B
| $1.73M | ﹤0.01% |
131,600
+6,500
| +5% | +$87.4K |
|
2345
PUT
Boot Barn
BOOT
$4.55B
| $1.73M | ﹤0.01% |
13,400
-200
| -1% | -$22.5K |
|
2346
PUT
Snap-on
SNA
$20.9B
| $1.73M | ﹤0.01% |
6,600
-2,000
| -23% | -$549K |
|
2347
CALL
Fastly Inc
FSLY
$3.17B
| $1.72M | ﹤0.01% |
234,000
+84,400
| +56% | +$826K |
|
2348
CALL
Guardant Health
GH
$19.5B
| $1.72M | ﹤0.01% |
59,700
-46,000
| -44% | -$1.07M |
|
2349
EPAM Systems
EPAM
$4.69B
| $1.72M | ﹤0.01% |
9,148
+8,114
| +785% | +$1.73M |
|
2350
Yum China
YUMC
$14.9B
| $1.72M | ﹤0.01% |
55,663
+41,608
| +296% | +$1.52M |
|
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.