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 |
Apple
AAPL
|
+$552M |
| 2 |
Strategy Inc
MSTR
|
+$85.8M |
| 3 |
MSTX
Defiance Daily Target 2x Long MSTR ETF
MSTX
|
+$48.1M |
| 4 |
Intel
INTC
|
+$45.4M |
| 5 |
Uber
UBER
|
+$43M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
NVIDIA
NVDA
|
+$133M |
| 2 |
Pinduoduo
PDD
|
+$82.6M |
| 3 |
Boeing
BA
|
+$49.8M |
| 4 |
KraneShares CSI China Internet ETF
KWEB
|
+$45.1M |
| 5 |
Microsoft
MSFT
|
+$41M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.68% |
| 2 | Consumer Discretionary | 0.23% |
| 3 | Healthcare | 0.19% |
| 4 | Financials | 0.13% |
| 5 | Communication Services | 0.11% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
651
CALL
AMC Entertainment Holdings
AMC
$2.01B
| $19.7M | 0.01% |
4,940,400
+546,500
| +12% | +$2.4M |
|
652
PUT
Teva Pharmaceuticals
TEVA
$35.1B
| $19.4M | 0.01% |
882,500
+184,400
| +26% | +$3.35M |
|
653
CALL
Altria Group
MO
$121B
| $19.4M | 0.01% |
371,900
-173,600
| -32% | -$9.25M |
|
654
PUT
Halliburton
HAL
$27.6B
| $19.4M | 0.01% |
714,300
-30,700
| -4% | -$898K |
|
655
PUT
Toll Brothers
TOL
$13.9B
| $19.4M | 0.01% |
154,200
+9,300
| +6% | +$1.38M |
|
656
CALL
AB InBev
BUD
$160B
| $19.4M | 0.01% |
386,800
+46,700
| +14% | +$2.7M |
|
657
PUT
Futu Holdings
FUTU
$14.9B
| $19.3M | 0.01% |
241,200
+54,100
| +29% | +$5.06M |
|
658
CALL
Live Nation Entertainment
LYV
$41.4B
| $19.2M | 0.01% |
148,600
-79,600
| -35% | -$10M |
|
659
CALL
MetLife
MET
$60B
| $19.2M | 0.01% |
234,800
+13,600
| +6% | +$1.13M |
|
660
PUT
Stryker
SYK
$119B
| $19.2M | 0.01% |
53,300
+2,900
| +6% | +$1.07M |
|
661
CALL
GSK
GSK
$102B
| $19.2M | 0.01% |
567,100
+11,900
| +2% | +$428K |
|
662
CALL
Trip.com Group
TCOM
$26.8B
| $19.2M | 0.01% |
279,300
-19,200
| -6% | -$1.27M |
|
663
Coinbase
COIN
$43.8B
| $19.2M | 0.01% |
77,224
+48,158
| +166% | +$12.2M |
|
664
CALL
Lyft
LYFT
$5.57B
| $19.2M | 0.01% |
1,486,200
+91,900
| +7% | +$1.36M |
|
665
CALL
KLA
KLAC
$280B
| $19.2M | 0.01% |
304,000
+120,000
| +65% | +$8.11M |
|
666
CALL
Shell
SHEL
$243B
| $19.1M | 0.01% |
304,700
-122,300
| -29% | -$8.01M |
|
667
Bristol-Myers Squibb
BMY
$124B
| $19M | 0.01% |
336,628
-14,458
| -4% | -$808K |
|
668
PUT
DuPont de Nemours
DD
$18.9B
| $19M | 0.01% |
198,529
-51,545
| -21% | -$5.36M |
|
669
CALL
CME Group
CME
$90.1B
| $18.9M | 0.01% |
81,300
-49,500
| -38% | -$11.4M |
|
670
CALL
Amphenol
APH
$194B
| $18.8M | 0.01% |
271,000
-99,200
| -27% | -$6.94M |
|
671
PUT
Chewy
CHWY
$8.81B
| $18.8M | 0.01% |
561,800
-54,400
| -9% | -$1.69M |
|
672
PUT
Tapestry
TPR
$29B
| $18.8M | 0.01% |
287,800
+22,400
| +8% | +$1.22M |
|
673
CALL
ON Semiconductor
ON
$35.9B
| $18.8M | 0.01% |
298,000
-21,800
| -7% | -$1.5M |
|
|
674
CALL
Futu Holdings
FUTU
$14.9B
| $18.8M | 0.01% |
234,800
-42,000
| -15% | -$3.93M |
|
675
CALL
KE Holdings
BEKE
$17.8B
| $18.7M | 0.01% |
1,016,300
+79,800
| +9% | +$1.65M |
|
Similar funds
Simplex Trading's Q4 2024 Portfolio in Review
As of Q4 2024, Simplex Trading held 10,008 positions worth $179B, up 4.8% from $170B the previous quarter. Its ten largest holdings account for 49% of the portfolio.
Simplex Trading's Q4 2024 filing shows 1,520 new, 3,222 increased, 3,616 reduced and 1,504 closed positions. Its largest new stake was Strategy Inc: 285,022 shares worth $82.5M. The largest sale was NVIDIA, an estimated $133M.
By sector, the portfolio is most concentrated in Technology at 0.68% of assets, up from 0.4% a quarter earlier, followed by Consumer Discretionary and Healthcare.
- Simplex Trading's largest Q4 2024 buy was Strategy Inc: 285,022 shares worth $82.5M.
- Simplex Trading added most to Apple in Q4 2024, an estimated $552M increase.
- Simplex Trading's biggest Q4 2024 reduction was NVIDIA, cutting an estimated $133M.
- Simplex Trading fully exited Pinduoduo in Q4 2024, selling an estimated $82.6M.
- Simplex Trading's ten largest holdings make up 49% of its $179B portfolio in Q4 2024.
- Simplex Trading opened 1,520 new positions and closed 1,504 in Q4 2024.
- Simplex Trading's portfolio value rose 4.8% quarter-over-quarter to $179B.
Based on Simplex Trading's 13F filing for Q4 2024, filed 11 Feb 2025.