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 |
Alphabet (Google) Class C
GOOG
|
$54.1M |
| 2 |
Apple
AAPL
|
$28.6M |
| 3 |
Meta Platforms (Facebook)
META
|
$16.5M |
| 4 |
IBM
IBM
|
$13.4M |
| 5 |
Baidu
BIDU
|
$10.3M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
$9.89M |
| 2 |
McDonald's
MCD
|
$8.52M |
| 3 |
Ralph Lauren
RL
|
$5.22M |
| 4 |
Intel
INTC
|
$4.74M |
| 5 |
WBA
Walgreens Boots Alliance
WBA
|
$4.67M |
Sector Composition
| 1 | Communication Services | 22.01% |
| 2 | Technology | 15.83% |
| 3 | Healthcare | 11.95% |
| 4 | Consumer Discretionary | 9.73% |
| 5 | Financials | 7.98% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
401
iShares MSCI Emerging Markets ETF
EEM
$19.2B
| $261K | 0.02% |
+6,594
| New | +$261K |
|
|
EJ
402
DELISTED
E HOUSE (CHINA) HOLDINGS LIMITED
EJ
| $261K | 0.02% |
38,882
+36,682
| +1,667% | +$246K |
|
|
KSU
403
DELISTED
Kansas City Southern
KSU
| $260K | 0.02% |
+2,851
| New | +$260K |
|
|
MFLX
404
DELISTED
MULTI-FINELINE ELECTRONIX INC
MFLX
| $260K | 0.02% |
11,920
+11,739
| +6,486% | +$256K |
|
|
ANSS
405
DELISTED
Ansys
ANSS
| $259K | 0.02% |
2,839
+763
| +37% | +$69.6K |
|
406
Novavax
NVAX
$1.28B
| $259K | 0.02% |
1,163
+619
| +114% | +$138K |
|
407
TD Synnex
SNX
$12.3B
| $259K | 0.02% |
7,094
+4,982
| +236% | +$182K |
|
|
CYT
408
DELISTED
CYTEC INDS INC
CYT
| $259K | 0.02% |
4,292
+3,714
| +643% | +$224K |
|
409
AerCap
AER
$22B
| $257K | 0.02% |
+5,630
| New | +$257K |
|
410
Ambarella
AMBA
$3.54B
| $257K | 0.02% |
2,512
-3,528
| -58% | -$361K |
|
411
Dollar Tree
DLTR
$20.6B
| $257K | 0.02% |
+3,256
| New | +$257K |
|
412
Direxion Daily Real Estate Bull 3X Shares
DRN
$65.3M
| $256K | 0.02% |
+16,620
| New | +$256K |
|
|
X
413
DELISTED
US Steel
X
| $255K | 0.02% |
+12,394
| New | +$255K |
|
414
Kimberly-Clark
KMB
$43.1B
| $254K | 0.02% |
2,400
-797
| -25% | -$84.3K |
|
415
Travelers Companies
TRV
$62B
| $254K | 0.02% |
2,632
-6,266
| -70% | -$605K |
|
|
EMC
416
DELISTED
EMC CORPORATION
EMC
| $254K | 0.02% |
9,637
-34,187
| -78% | -$901K |
|
417
Freeport-McMoran
FCX
$66.5B
| $251K | 0.02% |
13,512
-31,466
| -70% | -$585K |
|
418
Oneok
OKE
$45.7B
| $250K | 0.02% |
6,338
-6,000
| -49% | -$237K |
|
419
AGNC Investment
AGNC
$10.8B
| $249K | 0.02% |
13,590
+7,847
| +137% | +$144K |
|
|
ADXS
420
DELISTED
Advaxis, Inc.
ADXS
| $249K | 0.02% |
+819
| New | +$249K |
|
421
Core Laboratories
CLB
$592M
| $248K | 0.02% |
2,176
+224
| +11% | +$25.5K |
|
422
HP
HPQ
$27.4B
| $248K | 0.02% |
18,244
-33,899
| -65% | -$461K |
|
423
Wheaton Precious Metals
WPM
$47.3B
| $248K | 0.02% |
14,308
-15,769
| -52% | -$273K |
|
|
TCO
424
DELISTED
Taubman Centers Inc.
TCO
| $248K | 0.02% |
+3,579
| New | +$248K |
|
|
GG
425
DELISTED
Goldcorp Inc
GG
| $247K | 0.02% |
15,306
+238
| +2% | +$3.84K |
|