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 |
Amazon
AMZN
|
+$84.3M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$37M |
| 3 |
Amgen
AMGN
|
+$32.3M |
| 4 |
Micron Technology
MU
|
+$29.4M |
| 5 |
Qualcomm
QCOM
|
+$18M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
+$29.8M |
| 2 |
Gilead Sciences
GILD
|
+$29.3M |
| 3 |
Goldman Sachs
GS
|
+$27.7M |
| 4 |
Booking.com
BKNG
|
+$26M |
| 5 |
AT&T
T
|
+$20.8M |
Sector Composition
| 1 | Technology | 20.65% |
| 2 | Communication Services | 17.64% |
| 3 | Consumer Discretionary | 14.77% |
| 4 | Healthcare | 11.1% |
| 5 | Financials | 6.35% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
CHU
401
DELISTED
China Unicom (HONG KONG) Limited
CHU
| $470K | 0.02% |
+31,473
| New | +$470K |
|
402
iShares Mortgage Real Estate ETF
REM
$618M
| $465K | 0.02% |
+10,043
| New | +$465K |
|
403
Huazhu Hotels Group
HTHT
$11.4B
| $463K | 0.02% |
22,968
+20,720
| +922% | +$418K |
|
404
EQT Corp
EQT
$31.4B
| $458K | 0.02% |
14,369
+9,764
| +212% | +$311K |
|
|
TRCO
405
DELISTED
TRIBUNE MEDIA COMPANY CLASS A
TRCO
| $458K | 0.02% |
11,248
+1,231
| +12% | +$50.1K |
|
|
AMRN
406
Amarin Corp
AMRN
$315M
| $456K | 0.02% |
5,658
+1,031
| +22% | +$83.1K |
|
407
Plains GP Holdings
PAGP
$3.66B
| $456K | 0.02% |
+17,461
| New | +$456K |
|
408
Arch Capital
ACGL
$33.4B
| $455K | 0.02% |
14,640
+14,283
| +4,001% | +$444K |
|
|
EMWP
409
DELISTED
Eros Media World PLC
EMWP
| $454K | 0.02% |
1,983
+1,492
| +304% | +$342K |
|
|
RDUS
410
DELISTED
Radius Recycling
RDUS
| $453K | 0.02% |
+18,014
| New | +$453K |
|
411
Enerpac Tool Group
EPAC
$2.22B
| $443K | 0.02% |
+18,010
| New | +$443K |
|
412
TEGNA Inc
TGNA
$3.38B
| $443K | 0.02% |
30,750
+23,262
| +311% | +$335K |
|
413
WisdomTree India Earnings Fund ETF
EPI
$2.9B
| $438K | 0.02% |
+17,894
| New | +$438K |
|
414
WEX
WEX
$5.92B
| $437K | 0.02% |
4,198
-508
| -11% | -$52.9K |
|
415
Boston Scientific
BSX
$160B
| $436K | 0.02% |
15,729
-4,655
| -23% | -$129K |
|
416
Dick's Sporting Goods
DKS
$17.6B
| $435K | 0.02% |
10,934
-41,895
| -79% | -$1.67M |
|
417
Investcorp Credit Management BDC
ICMB
$42.1M
| $435K | 0.02% |
+43,839
| New | +$435K |
|
|
WFM
418
DELISTED
Whole Foods Market Inc
WFM
| $434K | 0.02% |
10,319
-58,952
| -85% | -$2.48M |
|
|
FCE.A
419
DELISTED
Forest City Realty Trust, Inc.
FCE.A
| $431K | 0.02% |
+17,837
| New | +$431K |
|
420
Inogen
INGN
$231M
| $425K | 0.02% |
4,459
+1,667
| +60% | +$159K |
|
|
GOOS
421
Canada Goose Holdings
GOOS
$1.45B
| $422K | 0.02% |
21,374
+11,664
| +120% | +$230K |
|
|
CS
422
DELISTED
Credit Suisse Group
CS
| $421K | 0.02% |
28,872
-4,696
| -14% | -$68.5K |
|
423
Sinclair Inc
SBGI
$942M
| $419K | 0.02% |
+12,741
| New | +$419K |
|
|
ICPT
424
DELISTED
Intercept Pharmaceuticals, Inc.
ICPT
| $417K | 0.02% |
3,448
-1,999
| -37% | -$242K |
|
|
MRO
425
DELISTED
Marathon Oil Corporation
MRO
| $416K | 0.02% |
+35,124
| New | +$416K |
|