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 | |
|---|---|---|---|---|---|---|
2801
PUT
Black Hills Corp
BKH
$5.55B
| $750K | ﹤0.01% |
10,800
+9,100
| +535% | +$655K |
|
|
JMIA
2802
PUT
Jumia Technologies
JMIA
$708M
| $748K | ﹤0.01% |
108,400
-220,200
| -67% | -$2.22M |
|
2803
CALL
ZTO Express
ZTO
$18.2B
| $748K | ﹤0.01% |
29,700
+1,900
| +7% | +$44.5K |
|
2804
CALL
Remitly
RELY
$4.9B
| $747K | ﹤0.01% |
47,700
-90,900
| -66% | -$1.35M |
|
2805
Fortune Brands Innovations
FBIN
$5.86B
| $747K | ﹤0.01% |
+19,161
| New | +$997K |
|
2806
NextNav
NN
$1.79B
| $746K | ﹤0.01% |
+46,584
| New | +$754K |
|
2807
CALL
Satellogic
SATL
$491M
| $746K | ﹤0.01% |
137,100
+79,000
| +136% | +$291K |
|
2808
CALL
Burford Capital
BUR
$914M
| $746K | ﹤0.01% |
165,000
+63,600
| +63% | +$556K |
|
2809
CALL
Simplify US Equity PLUS Convexity ETF
SPYC
$109M
| $745K | ﹤0.01% |
+48,300
| New | +$2.03M |
|
2810
PUT
Viking Therapeutics
VKTX
$3.88B
| $745K | ﹤0.01% |
22,900
-199,100
| -90% | -$6.4M |
|
2811
Navient
NAVI
$819M
| $745K | ﹤0.01% |
91,032
+90,620
| +21,995% | +$897K |
|
2812
Helmerich & Payne
HP
$3.34B
| $744K | ﹤0.01% |
+20,655
| New | +$704K |
|
2813
CALL
Rentokil
RTO
$14.8B
| $743K | ﹤0.01% |
23,600
+21,900
| +1,288% | +$690K |
|
2814
PUT
Tractor Supply
TSCO
$16.3B
| $743K | ﹤0.01% |
16,400
-45,000
| -73% | -$2.29M |
|
2815
CALL
American Battery Technology Co
ABAT
$280M
| $742K | ﹤0.01% |
266,000
-163,100
| -38% | -$629K |
|
2816
CALL
Avalo Therapeutics
AVTX
$1.01B
| $742K | ﹤0.01% |
49,700
+31,600
| +175% | +$494K |
|
|
OPRA
2817
CALL
Opera Ltd
OPRA
$1.68B
| $742K | ﹤0.01% |
52,000
+12,000
| +30% | +$166K |
|
|
OBE
2818
CALL
Obsidian Energy
OBE
$656M
| $742K | ﹤0.01% |
78,300
-48,900
| -38% | -$374K |
|
|
JPGE
2819
CALL
DELISTED
JPMorgan Diversified Return Global Equity ETF
JPGE
| $741K | ﹤0.01% |
+13,000
| New | +$741K |
|
2820
PUT
Portland General Electric
POR
$5.82B
| $739K | ﹤0.01% |
14,000
+7,500
| +115% | +$385K |
|
2821
Navigator Holdings
NVGS
$1.35B
| $739K | ﹤0.01% |
+38,219
| New | +$726K |
|
2822
PUT
Entegris
ENTG
$16.3B
| $739K | ﹤0.01% |
6,300
-30,000
| -83% | -$3.55M |
|
|
CMBT
2823
CALL
CMB.TECH NV
CMBT
$4.52B
| $737K | ﹤0.01% |
58,300
-46,800
| -45% | -$587K |
|
2824
PUT
Innovative Industrial Properties
IIPR
$1.77B
| $737K | ﹤0.01% |
14,700
-2,900
| -16% | -$146K |
|
2825
Compass
COMP
$8.67B
| $737K | ﹤0.01% |
100,827
-92,326
| -48% | -$970K |
|
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.