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 |
iShares Russell 2000 ETF
IWM
|
+$146M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$108M |
| 3 |
Apple
AAPL
|
+$62.9M |
| 4 |
Tesla
TSLA
|
+$51.9M |
| 5 |
Micron Technology
MU
|
+$39.5M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$108M |
| 2 |
Meta Platforms (Facebook)
META
|
+$104M |
| 3 |
Advanced Micro Devices
AMD
|
+$92.1M |
| 4 |
Amazon
AMZN
|
+$90.3M |
| 5 |
TSMC
TSM
|
+$82.9M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Miscellaneous | 98.28% |
| 2 | Technology | 0.76% |
| 3 | Consumer Discretionary | 0.21% |
| 4 | Communication Services | 0.19% |
| 5 | Healthcare | 0.15% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | Held Since | |
|---|---|---|---|---|---|---|---|
7951
PUT
First Bancorp
FNLC
$408M
| $6.96K | ﹤0.01% |
200
-5,400
| -96% | -$160K |
2025 Q4
2 quarters
|
|
7952
DELISTED
Qraft AI-Enhanced US Large Cap ETF
QRFT
| $6.96K | ﹤0.01% |
+100
| New | +$6.7K |
2026 Q2
0 quarters
|
|
7953
TriplePoint Venture Growth BDC
TPVG
$175M
| $6.95K | ﹤0.01% |
1,416
+1,052
| +289% | +$5.64K |
2026 Q1
1 quarter
|
|
7954
Amplify Bitcoin 2% Monthly Option Income ETF
BITY
$13M
| $6.92K | ﹤0.01% |
289
-275
| -49% | -$8.44K |
2025 Q4
2 quarters
|
|
7955
iShares Europe ETF
IEV
$1.58B
| $6.92K | ﹤0.01% |
95
-995
| -91% | -$71.6K |
2025 Q2
4 quarters
|
|
7956
Global X AI Semiconductor & Quantum ETF
CHPX
$200M
| $6.91K | ﹤0.01% |
+65
| New | +$5.71K |
2026 Q2
0 quarters
|
|
7957
PUT
Artisan Partners
APAM
$2.44B
| $6.91K | ﹤0.01% |
200
-800
| -80% | -$29.4K |
2019 Q2
28 quarters
|
|
|
MVO
7958
PUT
DELISTED
MV Oil Trust
MVO
| $6.9K | ﹤0.01% |
3,900
+2,800
| +255% | +$5.84K |
2025 Q4
2 quarters
|
|
7959
First Trust Water ETF
FIW
$1.8B
| $6.9K | ﹤0.01% |
63
-32
| -34% | -$3.37K |
2025 Q4
2 quarters
|
|
7960
PUT
Invesco CurrencyShares Canadian Dollar Trust
FXC
$66.2M
| $6.89K | ﹤0.01% |
100
-1,800
| -95% | -$127K |
2026 Q1
1 quarter
|
|
7961
CALL
Stantec
STN
$8.18B
| $6.89K | ﹤0.01% |
100
-500
| -83% | -$40.3K |
2026 Q1
1 quarter
|
|
7962
PUT
VanEck CMCI Commodity Strategy ETF
CMCI
$3.16M
| $6.88K | ﹤0.01% |
+100
| New | +$2.88K |
2026 Q2
0 quarters
|
|
7963
PUT
Home Bancorp
HBCP
$483M
| $6.85K | ﹤0.01% |
+100
| New | +$6.46K |
2026 Q2
0 quarters
|
|
7964
Fossil Group
FOSL
$387M
| $6.83K | ﹤0.01% |
+1,650
| New | +$7.4K |
2026 Q2
0 quarters
|
|
7965
CALL
Carter Bankshares
CARE
$711M
| $6.8K | ﹤0.01% |
+200
| New | +$5.41K |
2026 Q2
0 quarters
|
|
7966
CALL
TETRA Technologies
TTI
$763M
| $6.8K | ﹤0.01% |
600
-11,200
| -95% | -$110K |
2020 Q3
23 quarters
|
|
7967
CALL
MindWalk Holdings
HYFT
$56.5M
| $6.79K | ﹤0.01% |
4,300
+2,400
| +126% | +$3.37K |
2025 Q1
5 quarters
|
|
7968
Tradr 2X Long CLSK Daily ETF
CLSX
$7.55M
| $6.79K | ﹤0.01% |
331
-693
| -68% | -$15K |
2026 Q1
1 quarter
|
|
7969
Franklin Bitcoin ETF
EZBC
$482M
| $6.78K | ﹤0.01% |
+200
| New | +$8.3K |
2026 Q2
0 quarters
|
|
7970
Usio Inc
USIO
$90M
| $6.78K | ﹤0.01% |
2,734
+1,841
| +206% | +$2.72K |
2025 Q1
5 quarters
|
|
7971
Fidelity MSCI Consumer Staples Index ETF
FSTA
$1.52B
| $6.78K | ﹤0.01% |
129
+48
| +59% | +$2.55K |
2026 Q1
1 quarter
|
|
7972
CALL
Yiren Digital
YRD
$62.5M
| $6.77K | ﹤0.01% |
+8,100
| New | +$13.4K |
2026 Q2
0 quarters
|
|
7973
CALL
AMERISAFE
AMSF
$493M
| $6.77K | ﹤0.01% |
+200
| New | +$6.33K |
2026 Q2
0 quarters
|
|
7974
GraniteShares 2x Long NOW Daily ETF
NOWL
$242M
| $6.75K | ﹤0.01% |
+1,544
| New | +$7.45K |
2026 Q2
0 quarters
|
|
7975
PUT
Galiano Gold
GAU
$547M
| $6.73K | ﹤0.01% |
3,600
-3,100
| -46% | -$7.18K |
2025 Q3
3 quarters
|
|
Similar funds
Simplex Trading's Q2 2026 Portfolio in Review
As of Q2 2026, Simplex Trading held 10,638 positions worth $171B, up 14% from $149B the previous quarter. Its ten largest holdings account for 50% of the portfolio.
Simplex Trading's Q2 2026 filing shows 1,714 new, 3,712 increased, 3,486 reduced and 1,487 closed positions. Its largest new stake was Micron Technology: 52,682 shares worth $60.8M. The largest sale was State Street SPDR S&P 500 ETF Trust, an estimated $108M.
By sector, the portfolio is most concentrated in Miscellaneous at 98% of assets, down from 98% a quarter earlier, followed by Technology and Consumer Discretionary.
- Simplex Trading's largest Q2 2026 buy was Micron Technology: 52,682 shares worth $60.8M.
- Simplex Trading added most to iShares Russell 2000 ETF in Q2 2026, an estimated $146M increase.
- Simplex Trading's biggest Q2 2026 reduction was State Street SPDR S&P 500 ETF Trust, cutting an estimated $108M.
- Simplex Trading fully exited Intel in Q2 2026, selling an estimated $76.6M.
- Simplex Trading's ten largest holdings make up 50% of its $171B portfolio in Q2 2026.
- Simplex Trading opened 1,714 new positions and closed 1,487 in Q2 2026.
- Simplex Trading's portfolio value rose 14% quarter-over-quarter to $171B.
Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.