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 |
Amazon
AMZN
|
+$168M |
| 2 |
NVIDIA
NVDA
|
+$141M |
| 3 |
TSMC
TSM
|
+$121M |
| 4 |
Meta Platforms (Facebook)
META
|
+$107M |
| 5 |
SPDR Gold Trust
GLD
|
+$103M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$174M |
| 2 |
Western Digital
WDC
|
+$87.7M |
| 3 |
Broadcom
AVGO
|
+$62.2M |
| 4 |
Direxion Daily Semiconductor Bull 3X ETF
SOXL
|
+$52M |
| 5 |
Netflix
NFLX
|
+$44.6M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.62% |
| 2 | Communication Services | 0.22% |
| 3 | Consumer Discretionary | 0.21% |
| 4 | Healthcare | 0.2% |
| 5 | Industrials | 0.1% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
8276
Schwab US Mid-Cap ETF
SCHM
$14.7B
| $2.54K | ﹤0.01% |
+82
| New | +$2.61K |
|
8277
CALL
Envista
NVST
$4.38B
| $2.54K | ﹤0.01% |
+100
| New | +$2.59K |
|
8278
CALL
First Busey Corp
BUSE
$2.51B
| $2.53K | ﹤0.01% |
100
-7,000
| -99% | -$176K |
|
|
8279
PUT
First Busey Corp
BUSE
$2.51B
| $2.53K | ﹤0.01% |
100
-500
| -83% | -$12.6K |
|
8280
Fidelity Crypto Industry and Digital Payments ETF
FDIG
$262M
| $2.52K | ﹤0.01% |
77
-53
| -41% | -$2.01K |
|
|
TEMT
8281
Tradr 2X Long TEM Daily ETF
TEMT
$30.9M
| $2.51K | ﹤0.01% |
+141
| New | +$4.33K |
|
|
NXRT
8282
PUT
NexPoint Residential Trust
NXRT
$664M
| $2.5K | ﹤0.01% |
100
-29,200
| -100% | -$837K |
|
|
LUCK
8283
CALL
Lucky Strike Entertainment
LUCK
$989M
| $2.5K | ﹤0.01% |
+300
| New | +$2.48K |
|
|
DGNX
8284
CALL
Diginex Ltd
DGNX
$37.8M
| $2.5K | ﹤0.01% |
650
-788
| -55% | -$7.66K |
|
8285
BancFirst
BANF
$3.91B
| $2.5K | ﹤0.01% |
23
-75
| -77% | -$8.34K |
|
8286
PUT
TriplePoint Venture Growth BDC
TPVG
$185M
| $2.5K | ﹤0.01% |
+500
| New | +$2.85K |
|
8287
CALL
Eagle Bancorp
EGBN
$821M
| $2.49K | ﹤0.01% |
100
-100
| -50% | -$2.49K |
|
|
MVO
8288
PUT
MV Oil Trust
MVO
$7.04M
| $2.49K | ﹤0.01% |
1,100
+200
| +22% | +$376 |
|
8289
CALL
OFS Capital
OFS
$46.5M
| $2.48K | ﹤0.01% |
700
-8,100
| -92% | -$34K |
|
8290
CALL
Taboola.com
TBLA
$1.45B
| $2.48K | ﹤0.01% |
+800
| New | +$2.86K |
|
8291
Atomera
ATOM
$212M
| $2.47K | ﹤0.01% |
648
-2,778
| -81% | -$10.5K |
|
8292
Owlet
OWLT
$164M
| $2.47K | ﹤0.01% |
+480
| New | +$5.08K |
|
8293
Genie Energy
GNE
$373M
| $2.46K | ﹤0.01% |
174
+164
| +1,640% | +$2.33K |
|
8294
First Trust Rising Dividend Achievers ETF
RDVY
$24.5B
| $2.46K | ﹤0.01% |
36
-23
| -39% | -$1.64K |
|
8295
CALL
TROOPS Inc
TROO
$254M
| $2.45K | ﹤0.01% |
1,200
+600
| +100% | +$2.04K |
|
8296
PUT
AdvanSix
ASIX
$551M
| $2.44K | ﹤0.01% |
100
| – | – |
|
8297
BTCS Inc
BTCS
$53.3M
| $2.44K | ﹤0.01% |
+1,752
| New | +$3.58K |
|
8298
Enlivex Ltd
ENLV
$78.1M
| $2.43K | ﹤0.01% |
174
-418
| -71% | -$6.62K |
|
8299
PUT
International General Insurance
IGIC
$1.21B
| $2.42K | ﹤0.01% |
+100
| New | +$2.45K |
|
|
NVX
8300
PUT
NOVONIX
NVX
$100M
| $2.42K | ﹤0.01% |
3,500
+3,200
| +1,067% | +$3.11K |
|
Similar funds
Simplex Trading's Q1 2026 Portfolio in Review
As of Q1 2026, Simplex Trading held 10,500 positions worth $149B, down 16% from $177B the previous quarter. Its ten largest holdings account for 51% of the portfolio.
Simplex Trading withdrew a net $18.1B in Q1 2026, closing 1,574 positions and reducing 3,926 holdings. Its most notable exit was Direxion Daily Semiconductor Bull 3X ETF, an estimated $52M position sold in full.
By sector, the portfolio is most concentrated in Technology at 0.62% of assets, up from 0.59% a quarter earlier, followed by Communication Services and Consumer Discretionary.
Against the trend, Simplex Trading opened a new position in Amazon worth $159M.
- Simplex Trading's largest Q1 2026 buy was Amazon: 764,884 shares worth $159M.
- Simplex Trading added most to NVIDIA in Q1 2026, an estimated $141M increase.
- Simplex Trading's biggest Q1 2026 reduction was Apple, cutting an estimated $174M.
- Simplex Trading fully exited Direxion Daily Semiconductor Bull 3X ETF in Q1 2026, selling an estimated $52M.
- Simplex Trading's ten largest holdings make up 51% of its $149B portfolio in Q1 2026.
- Simplex Trading opened 2,156 new positions and closed 1,574 in Q1 2026.
- Simplex Trading's portfolio value fell 16% quarter-over-quarter to $149B.
Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.