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
|
+$144M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$68.7M |
| 3 |
AT&T
T
|
+$45.5M |
| 4 |
Meta Platforms (Facebook)
META
|
+$38M |
| 5 |
iShares MSCI Emerging Markets ETF
EEM
|
+$35.4M |
Top Sells
| 1 |
Microsoft
MSFT
|
+$94.2M |
| 2 |
Citigroup
C
|
+$62.3M |
| 3 |
JPMorgan Chase
JPM
|
+$56.2M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
+$45.8M |
| 5 |
SPDR Gold Trust
GLD
|
+$44.4M |
Sector Composition
| 1 | Consumer Discretionary | 16.85% |
| 2 | Technology | 15.5% |
| 3 | Communication Services | 10.53% |
| 4 | Healthcare | 8.8% |
| 5 | Consumer Staples | 5.63% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
376
Illumina
ILMN
$14.7B
| $770K | ﹤0.01% |
3,920
-31,677
| -89% | -$6.22M |
|
377
Lyft
LYFT
$7.87B
| $768K | ﹤0.01% |
+69,758
| New | +$768K |
|
378
Moody's
MCO
$90.8B
| $765K | ﹤0.01% |
2,748
-9,737
| -78% | -$2.71M |
|
379
Direxion Daily S&P 500 Bull 3x Shares
SPXL
$5.68B
| $762K | ﹤0.01% |
12,283
+11,929
| +3,370% | +$740K |
|
380
iShares Core S&P Mid-Cap ETF
IJH
$100B
| $761K | ﹤0.01% |
15,750
-7,850
| -33% | -$379K |
|
381
Navios Maritime Partners
NMM
$1.42B
| $760K | ﹤0.01% |
29,304
-8,589
| -23% | -$223K |
|
382
ProShares UltraPro QQQ
TQQQ
$27.2B
| $759K | ﹤0.01% |
43,891
-2,230,127
| -98% | -$38.6M |
|
383
NCR Voyix
VYX
$1.73B
| $757K | ﹤0.01% |
52,732
+52,406
| +16,075% | +$752K |
|
|
NOAH
384
Noah Holdings
NOAH
$787M
| $756K | ﹤0.01% |
48,777
+31,661
| +185% | +$491K |
|
385
ACI Worldwide
ACIW
$5.17B
| $755K | ﹤0.01% |
32,856
+23,832
| +264% | +$548K |
|
386
Community Health Systems
CYH
$409M
| $755K | ﹤0.01% |
174,808
-116,722
| -40% | -$504K |
|
387
Direxion Daily Junior Gold Miners Index Bull 2X Shares
JNUG
$495M
| $754K | ﹤0.01% |
20,847
+2,846
| +16% | +$103K |
|
|
AMJ
388
DELISTED
JP Morgan Alerian MLP Index ETN 5/24/24
AMJ
| $753K | ﹤0.01% |
+34,658
| New | +$753K |
|
389
Ecopetrol
EC
$19.4B
| $751K | ﹤0.01% |
71,743
+64,436
| +882% | +$675K |
|
|
PACW
390
DELISTED
PacWest Bancorp
PACW
| $750K | ﹤0.01% |
32,698
+6,886
| +27% | +$158K |
|
391
TAL Education Group
TAL
$6.37B
| $744K | ﹤0.01% |
105,575
+42,582
| +68% | +$300K |
|
392
Sibanye-Stillwater
SBSW
$6.11B
| $741K | ﹤0.01% |
69,549
-195,673
| -74% | -$2.08M |
|
393
Ares Management
ARES
$39.3B
| $734K | ﹤0.01% |
10,730
+7,831
| +270% | +$536K |
|
394
VanEck High Yield Muni ETF
HYD
$3.37B
| $728K | ﹤0.01% |
+14,420
| New | +$728K |
|
395
Carriage Services
CSV
$652M
| $723K | ﹤0.01% |
26,263
+21,418
| +442% | +$590K |
|
396
Sociedad Química y Minera de Chile
SQM
$12B
| $723K | ﹤0.01% |
9,057
+973
| +12% | +$77.7K |
|
397
Baker Hughes
BKR
$46.3B
| $715K | ﹤0.01% |
24,220
-13,284
| -35% | -$392K |
|
398
Dick's Sporting Goods
DKS
$18.2B
| $712K | ﹤0.01% |
+5,927
| New | +$712K |
|
399
Under Armour Class C
UA
$2.09B
| $709K | ﹤0.01% |
79,527
+28,117
| +55% | +$251K |
|
400
Cullen/Frost Bankers
CFR
$8.11B
| $708K | ﹤0.01% |
+5,302
| New | +$708K |
|