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
| 1 |
NVIDIA
NVDA
|
+$60M |
| 2 |
Microsoft
MSFT
|
+$58.6M |
| 3 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$52.5M |
| 4 |
PayPal
PYPL
|
+$40.9M |
| 5 |
Netflix
NFLX
|
+$29.7M |
Top Sells
| 1 |
Apple
AAPL
|
+$48.7M |
| 2 |
Walmart
WMT
|
+$45.2M |
| 3 |
Adobe
ADBE
|
+$40.6M |
| 4 |
VanEck Oil Services ETF
OIH
|
+$34.2M |
| 5 |
Enphase Energy
ENPH
|
+$27.2M |
Sector Composition
| 1 | Technology | 21.17% |
| 2 | Healthcare | 10.87% |
| 3 | Consumer Discretionary | 10.73% |
| 4 | Communication Services | 10.55% |
| 5 | Financials | 7.54% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
401
Kornit Digital
KRNT
$675M
| $902K | ﹤0.01% |
30,715
+6,337
| +26% | +$186K |
|
|
GAP
402
The Gap, Inc.
GAP
$8.94B
| $899K | ﹤0.01% |
100,740
-101,104
| -50% | -$902K |
|
403
NOV
NOV
$4.85B
| $898K | ﹤0.01% |
+56,018
| New | +$898K |
|
404
Direxion Daily Junior Gold Miners Index Bear 2X Shares
JDST
$54.1M
| $888K | ﹤0.01% |
12,549
+2,990
| +31% | +$212K |
|
405
SPDR S&P Metals & Mining ETF
XME
$2.33B
| $888K | ﹤0.01% |
+17,479
| New | +$888K |
|
406
Copart
CPRT
$46.5B
| $884K | ﹤0.01% |
19,402
+6,978
| +56% | +$318K |
|
407
Nice
NICE
$8.85B
| $883K | ﹤0.01% |
4,277
-24,472
| -85% | -$5.05M |
|
408
KBR
KBR
$6.35B
| $879K | ﹤0.01% |
+13,514
| New | +$879K |
|
409
Vermilion Energy
VET
$1.13B
| $876K | ﹤0.01% |
70,423
-38,638
| -35% | -$481K |
|
410
Eastman Chemical
EMN
$7.76B
| $871K | ﹤0.01% |
+10,410
| New | +$871K |
|
411
Nasdaq
NDAQ
$54.4B
| $871K | ﹤0.01% |
+17,492
| New | +$871K |
|
412
Teucrium Wheat Fund
WEAT
$117M
| $871K | ﹤0.01% |
135,307
+31,240
| +30% | +$201K |
|
413
ProShares Ultra Bloomberg Natural Gas
BOIL
$132M
| $864K | ﹤0.01% |
+2,505
| New | +$864K |
|
414
Accel Entertainment
ACEL
$936M
| $857K | ﹤0.01% |
81,181
-66,091
| -45% | -$698K |
|
415
FLEX LNG
FLNG
$1.38B
| $856K | ﹤0.01% |
28,043
+10,163
| +57% | +$310K |
|
|
JMIA
416
Jumia Technologies
JMIA
$1.19B
| $855K | ﹤0.01% |
250,064
+7,523
| +3% | +$25.7K |
|
417
Axcelis
ACLS
$2.61B
| $850K | ﹤0.01% |
+4,638
| New | +$850K |
|
418
SSR Mining
SSRM
$4.29B
| $850K | ﹤0.01% |
59,980
-5,029
| -8% | -$71.3K |
|
|
PRFT
419
DELISTED
Perficient Inc
PRFT
| $850K | ﹤0.01% |
10,203
+6,676
| +189% | +$556K |
|
420
Markel Group
MKL
$24.4B
| $849K | ﹤0.01% |
614
-629
| -51% | -$870K |
|
421
ProShares UltraPro Dow 30
UDOW
$724M
| $847K | ﹤0.01% |
+14,203
| New | +$847K |
|
422
Timken Company
TKR
$5.3B
| $846K | ﹤0.01% |
+9,243
| New | +$846K |
|
423
Edison International
EIX
$21.1B
| $842K | ﹤0.01% |
12,126
+11,964
| +7,385% | +$831K |
|
424
iShares MSCI India ETF
INDA
$9.3B
| $832K | ﹤0.01% |
19,048
-7,476
| -28% | -$327K |
|
425
AGNC Investment
AGNC
$10.8B
| $822K | ﹤0.01% |
81,157
-238,020
| -75% | -$2.41M |
|