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 | |
|---|---|---|---|---|---|---|
5476
CALL
Insperity
NSP
$1.93B
| $91K | ﹤0.01% |
1,000
+100
| +11% | +$10.1K |
|
|
ORC
5477
Orchid Island Capital
ORC
$1.3B
| $91K | ﹤0.01% |
+10,937
| New | +$92.9K |
|
5478
PUT
TriCo Bancshares
TCBK
$1.84B
| $91K | ﹤0.01% |
+2,300
| New | +$83.1K |
|
5479
PUT
Telecom Argentina
TEO
$6.03B
| $91K | ﹤0.01% |
12,700
+1,200
| +10% | +$9.57K |
|
5480
PUT
Vanguard Dividend Appreciation ETF
VIG
$111B
| $91K | ﹤0.01% |
500
-2,000
| -80% | -$360K |
|
5481
CALL
Vishay Intertechnology
VSH
$5.25B
| $91K | ﹤0.01% |
4,100
-2,700
| -40% | -$61K |
|
5482
CALL
Beam Global
BEEM
$23.3M
| $90K | ﹤0.01% |
19,700
+8,300
| +73% | +$49.4K |
|
5483
PUT
Bankunited
BKU
$3.37B
| $90K | ﹤0.01% |
3,100
-900
| -23% | -$25K |
|
5484
CALL
MarineMax
HZO
$759M
| $90K | ﹤0.01% |
2,800
-1,100
| -28% | -$32.2K |
|
5485
iShares Russell 3000 ETF
IWV
$19.6B
| $90K | ﹤0.01% |
294
+267
| +989% | +$79.7K |
|
5486
CALL
Kilroy Realty
KRC
$4.52B
| $90K | ﹤0.01% |
2,900
+1,600
| +123% | +$53.1K |
|
|
PBT
5487
CALL
Permian Basin Royalty Trust
PBT
$1.38B
| $90K | ﹤0.01% |
8,000
+1,700
| +27% | +$20.6K |
|
5488
PUT
Q2 Holdings
QTWO
$3.8B
| $90K | ﹤0.01% |
1,500
+200
| +15% | +$11.5K |
|
5489
PUT
Rhythm Pharmaceuticals
RYTM
$6.81B
| $90K | ﹤0.01% |
2,200
-1,400
| -39% | -$55.9K |
|
5490
Sterling Infrastructure
STRL
$18.3B
| $90K | ﹤0.01% |
763
-1,177
| -61% | -$134K |
|
5491
Aurora
AUR
$12.6B
| $89K | ﹤0.01% |
+32,281
| New | +$89.3K |
|
5492
Bit Digital
BTBT
$463M
| $89K | ﹤0.01% |
+28,258
| New | +$69K |
|
5493
Roundhill Generative AI & Technology ETF
CHAT
$1.74B
| $89K | ﹤0.01% |
+2,410
| New | +$84.7K |
|
5494
PUT
Americold
COLD
$4.02B
| $89K | ﹤0.01% |
3,500
+900
| +35% | +$22.1K |
|
5495
Camden Property Trust
CPT
$11B
| $89K | ﹤0.01% |
+823
| New | +$85K |
|
5496
PUT
Dana Inc
DAN
$2.9B
| $89K | ﹤0.01% |
7,400
+2,700
| +57% | +$35.1K |
|
5497
Funko
FNKO
$326M
| $89K | ﹤0.01% |
+9,149
| New | +$71K |
|
5498
CALL
Hippo Holdings
HIPO
$830M
| $89K | ﹤0.01% |
5,200
+1,600
| +44% | +$30.3K |
|
5499
Intuitive Machines
LUNR
$1.98B
| $89K | ﹤0.01% |
27,156
+17,962
| +195% | +$89.3K |
|
|
ACH
5500
PUT
Accendra Health
ACH
$237M
| $89K | ﹤0.01% |
6,600
-20,500
| -76% | -$420K |
|
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.