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 | |
|---|---|---|---|---|---|---|
3801
CALL
Coherus Oncology
CHRS
$224M
| $390K | ﹤0.01% |
283,100
+254,900
| +904% | +$286K |
|
3802
CALL
Hagerty
HGTY
$1.24B
| $390K | ﹤0.01% |
+40,500
| New | +$441K |
|
3803
CALL
Beazer Homes USA
BZH
$914M
| $389K | ﹤0.01% |
14,200
-13,100
| -48% | -$418K |
|
3804
Genius Sports
GENI
$1.95B
| $389K | ﹤0.01% |
45,038
-43,264
| -49% | -$361K |
|
3805
CALL
INmune Bio
INMB
$45.7M
| $388K | ﹤0.01% |
83,200
+9,600
| +13% | +$50K |
|
3806
CALL
Gartner
IT
$10.4B
| $387K | ﹤0.01% |
800
+700
| +700% | +$361K |
|
3807
CALL
Viper Energy
VNOM
$8.21B
| $387K | ﹤0.01% |
7,900
-65,400
| -89% | -$3.37M |
|
3808
PUT
TE Connectivity
TEL
$62.1B
| $386K | ﹤0.01% |
2,700
-8,300
| -75% | -$1.24M |
|
|
BTC
3809
CALL
Grayscale Bitcoin Mini Trust ETF
BTC
$3.38B
| $385K | ﹤0.01% |
+9,200
| New | +$339K |
|
3810
Alliance Resource Partners
ARLP
$3.33B
| $384K | ﹤0.01% |
+14,617
| New | +$383K |
|
3811
CALL
Liberty Global Class C
LBTYK
$3.4B
| $383K | ﹤0.01% |
30,100
-188,300
| -86% | -$3.25M |
|
3812
CALL
Nordic American Tanker
NAT
$1.35B
| $383K | ﹤0.01% |
153,500
+65,400
| +74% | +$201K |
|
3813
Park Hotels & Resorts
PK
$3.06B
| $383K | ﹤0.01% |
+27,278
| New | +$400K |
|
3814
CALL
Rayonier
RYN
$6.64B
| $383K | ﹤0.01% |
15,418
+3,514
| +30% | +$97.8K |
|
|
THS
3815
DELISTED
Treehouse Foods
THS
| $383K | ﹤0.01% |
+10,929
| New | +$398K |
|
3816
Huntington Bancshares
HBAN
$35B
| $382K | ﹤0.01% |
23,527
-109,059
| -82% | -$1.79M |
|
3817
CALL
Lightspeed Commerce
LSPD
$1.41B
| $382K | ﹤0.01% |
25,100
-230,800
| -90% | -$3.79M |
|
3818
CALL
Advanced Energy
AEIS
$10.9B
| $381K | ﹤0.01% |
3,300
+2,400
| +267% | +$270K |
|
|
EVRI
3819
DELISTED
Everi Holdings
EVRI
| $381K | ﹤0.01% |
+28,243
| New | +$378K |
|
3820
PUT
G-III Apparel Group
GIII
$1.55B
| $381K | ﹤0.01% |
11,700
+10,900
| +1,363% | +$343K |
|
3821
Direxion Daily Junior Gold Miners Index Bull 2X ETF
JNUG
$360M
| $381K | ﹤0.01% |
10,457
-4,110
| -28% | -$189K |
|
3822
PUT
Mohawk Industries
MHK
$7.14B
| $381K | ﹤0.01% |
3,200
-4,000
| -56% | -$559K |
|
3823
CALL
Vishay Intertechnology
VSH
$5.02B
| $381K | ﹤0.01% |
22,500
+18,800
| +508% | +$330K |
|
3824
PUT
Arcutis Biotherapeutics
ARQT
$3.55B
| $380K | ﹤0.01% |
27,300
+17,400
| +176% | +$191K |
|
3825
CALL
News Corp Class B
NWS
$17.2B
| $380K | ﹤0.01% |
13,800
-1,300
| -9% | -$39.2K |
|
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.