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 |
Boeing
BA
|
+$55.8M |
| 2 |
Microsoft
MSFT
|
+$42.2M |
| 3 |
Pinduoduo
PDD
|
+$41.3M |
| 4 |
Apple
AAPL
|
+$32M |
| 5 |
Direxion Daily Semiconductor Bull 3X ETF
SOXL
|
+$28.3M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Broadcom
AVGO
|
+$95.2M |
| 2 |
Citigroup
C
|
+$57.2M |
| 3 |
Pfizer
PFE
|
+$56.4M |
| 4 |
TSMC
TSM
|
+$39.7M |
| 5 |
Starbucks
SBUX
|
+$35.5M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.4% |
| 2 | Consumer Discretionary | 0.29% |
| 3 | Healthcare | 0.15% |
| 4 | Industrials | 0.13% |
| 5 | Financials | 0.13% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
2401
Trip.com Group
TCOM
$27.5B
| $1.74M | ﹤0.01% |
29,259
+28,514
| +3,827% | +$1.32M |
|
|
DQ
2402
PUT
Daqo New Energy
DQ
$790M
| $1.73M | ﹤0.01% |
84,900
-2,900
| -3% | -$46.8K |
|
2403
PUT
MannKind Corp
MNKD
$1.28B
| $1.73M | ﹤0.01% |
274,900
+2,000
| +0.7% | +$11.5K |
|
2404
PUT
Church & Dwight Co
CHD
$23.1B
| $1.73M | ﹤0.01% |
16,500
-1,700
| -9% | -$174K |
|
2405
PUT
Simplify US Equity PLUS Convexity ETF
SPYC
$109M
| $1.73M | ﹤0.01% |
78,600
+48,600
| +162% | +$1.78M |
|
2406
CALL
Performance Food Group
PFGC
$17.5B
| $1.72M | ﹤0.01% |
22,000
+15,200
| +224% | +$1.07M |
|
2407
CALL
Coca-Cola Femsa
KOF
$21.6B
| $1.72M | ﹤0.01% |
19,400
+16,700
| +619% | +$1.46M |
|
2408
CALL
Dorian LPG
LPG
$1.94B
| $1.72M | ﹤0.01% |
50,000
-10,800
| -18% | -$409K |
|
2409
Expedia Group
EXPE
$31.2B
| $1.72M | ﹤0.01% |
11,611
-33,464
| -74% | -$4.43M |
|
2410
PUT
Madrigal Pharmaceuticals
MDGL
$12.6B
| $1.72M | ﹤0.01% |
8,100
-3,200
| -28% | -$819K |
|
|
PR
2411
PUT
Permian Resources
PR
$17.9B
| $1.71M | ﹤0.01% |
126,000
-84,500
| -40% | -$1.24M |
|
2412
CALL
Biohaven
BHVN
$2.16B
| $1.71M | ﹤0.01% |
34,300
+4,600
| +15% | +$179K |
|
2413
CALL
Applied Optoelectronics
AAOI
$8.04B
| $1.71M | ﹤0.01% |
119,700
+8,900
| +8% | +$92.3K |
|
2414
CALL
Birkenstock
BIRK
$7.47B
| $1.71M | ﹤0.01% |
34,700
+3,500
| +11% | +$190K |
|
2415
KBR
KBR
$4.68B
| $1.71M | ﹤0.01% |
26,246
+18,429
| +236% | +$1.2M |
|
2416
PUT
Revolution Medicines
RVMD
$40.2B
| $1.71M | ﹤0.01% |
37,700
+12,100
| +47% | +$527K |
|
2417
CALL
EVgo
EVGO
$200M
| $1.71M | ﹤0.01% |
412,800
+51,100
| +14% | +$195K |
|
2418
PUT
ICICI Bank
IBN
$106B
| $1.71M | ﹤0.01% |
57,200
-39,000
| -41% | -$1.14M |
|
2419
CALL
United Natural Foods
UNFI
$3.01B
| $1.71M | ﹤0.01% |
101,400
-7,000
| -6% | -$100K |
|
|
ITCI
2420
CALL
DELISTED
Intra-Cellular Therapies Inc.
ITCI
| $1.7M | ﹤0.01% |
23,300
-8,900
| -28% | -$669K |
|
|
HOLX
2421
PUT
DELISTED
Hologic
HOLX
| $1.7M | ﹤0.01% |
20,900
+12,600
| +152% | +$1.01M |
|
2422
CALL
Vulcan Materials
VMC
$36.3B
| $1.7M | ﹤0.01% |
6,800
-26,600
| -80% | -$6.61M |
|
2423
CALL
Levi Strauss
LEVI
$9.44B
| $1.7M | ﹤0.01% |
77,900
-458,400
| -85% | -$8.67M |
|
2424
Aurinia Pharmaceuticals
AUPH
$1.97B
| $1.7M | ﹤0.01% |
231,267
+176,546
| +323% | +$1.09M |
|
|
KREF
2425
CALL
KKR Real Estate Finance Trust
KREF
$472M
| $1.69M | ﹤0.01% |
137,100
+134,100
| +4,470% | +$1.5M |
|
Similar funds
Simplex Trading's Q3 2024 Portfolio in Review
As of Q3 2024, Simplex Trading held 9,964 positions worth $170B, up 5.3% from $162B the previous quarter. Its ten largest holdings account for 50% of the portfolio.
Simplex Trading's Q3 2024 filing shows 1,185 new, 3,232 increased, 3,829 reduced and 1,476 closed positions. Its largest new stake was Boeing: 325,328 shares worth $49.5M. The largest sale was Broadcom, an estimated $95.2M.
By sector, the portfolio is most concentrated in Technology at 0.4% of assets, down from 0.53% a quarter earlier, followed by Consumer Discretionary and Healthcare.
- Simplex Trading's largest Q3 2024 buy was Boeing: 325,328 shares worth $49.5M.
- Simplex Trading added most to Pinduoduo in Q3 2024, an estimated $41.3M increase.
- Simplex Trading's biggest Q3 2024 reduction was Citigroup, cutting an estimated $57.2M.
- Simplex Trading fully exited Broadcom in Q3 2024, selling an estimated $95.2M.
- Simplex Trading's ten largest holdings make up 50% of its $170B portfolio in Q3 2024.
- Simplex Trading opened 1,185 new positions and closed 1,476 in Q3 2024.
- Simplex Trading's portfolio value rose 5.3% quarter-over-quarter to $170B.
Based on Simplex Trading's 13F filing for Q3 2024, filed 8 Nov 2024.