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 |
Apple
AAPL
|
+$586M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
+$82.5M |
| 3 |
Intel
INTC
|
+$40.4M |
| 4 |
Invesco QQQ Trust
QQQ
|
+$39.4M |
| 5 |
Uber
UBER
|
+$36.3M |
Top Sells
| 1 |
NVIDIA
NVDA
|
+$130M |
| 2 |
Pinduoduo
PDD
|
+$95.7M |
| 3 |
Boeing
BA
|
+$56.2M |
| 4 |
KraneShares CSI China Internet ETF
KWEB
|
+$40.7M |
| 5 |
Microsoft
MSFT
|
+$40.5M |
Sector Composition
| 1 | Technology | 34.29% |
| 2 | Consumer Discretionary | 11.38% |
| 3 | Healthcare | 9.65% |
| 4 | Financials | 6.33% |
| 5 | Communication Services | 5.52% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1276
S&P Global
SPGI
$168B
| $71K | ﹤0.01% |
+144
| New | +$71K |
|
1277
AMN Healthcare
AMN
$727M
| $70K | ﹤0.01% |
2,960
+457
| +18% | +$10.8K |
|
1278
Expensify
EXFY
$182M
| $70K | ﹤0.01% |
21,113
+20,858
| +8,180% | +$69.2K |
|
1279
GoodRx Holdings
GDRX
$1.47B
| $70K | ﹤0.01% |
15,232
-10,836
| -42% | -$49.8K |
|
1280
Kaspi.kz JSC
KSPI
$16.2B
| $70K | ﹤0.01% |
743
+384
| +107% | +$36.2K |
|
1281
CCC Intelligent Solutions
CCCS
$6.33B
| $69K | ﹤0.01% |
5,952
+620
| +12% | +$7.19K |
|
1282
Evergy
EVRG
$16.6B
| $69K | ﹤0.01% |
1,123
-2,947
| -72% | -$181K |
|
1283
EyePoint Pharmaceuticals
EYPT
$919M
| $69K | ﹤0.01% |
+9,353
| New | +$69K |
|
1284
Golub Capital BDC
GBDC
$3.94B
| $69K | ﹤0.01% |
+4,557
| New | +$69K |
|
1285
CarParts.com
PRTS
$46.3M
| $69K | ﹤0.01% |
64,351
+19,552
| +44% | +$21K |
|
1286
Tenaya Therapeutics
TNYA
$209M
| $69K | ﹤0.01% |
48,268
+47,560
| +6,718% | +$68K |
|
1287
Alcon
ALC
$39.4B
| $68K | ﹤0.01% |
+812
| New | +$68K |
|
1288
Andersons Inc
ANDE
$1.4B
| $68K | ﹤0.01% |
1,686
+756
| +81% | +$30.5K |
|
1289
BARK
BARK
$152M
| $68K | ﹤0.01% |
37,135
+4,350
| +13% | +$7.97K |
|
1290
Carlisle Companies
CSL
$16.8B
| $68K | ﹤0.01% |
+187
| New | +$68K |
|
1291
Calavo Growers
CVGW
$496M
| $68K | ﹤0.01% |
2,688
-998
| -27% | -$25.2K |
|
1292
Tyler Technologies
TYL
$24B
| $68K | ﹤0.01% |
119
-631
| -84% | -$361K |
|
1293
Verastem
VSTM
$575M
| $68K | ﹤0.01% |
+13,334
| New | +$68K |
|
1294
Acadia Healthcare
ACHC
$2.06B
| $67K | ﹤0.01% |
1,697
-21,910
| -93% | -$865K |
|
1295
Amylyx Pharmaceuticals
AMLX
$1.06B
| $67K | ﹤0.01% |
17,819
-93,909
| -84% | -$353K |
|
1296
Franklin Resources
BEN
$12.9B
| $67K | ﹤0.01% |
+3,328
| New | +$67K |
|
|
TBHC
1297
The Brand House Collective, Inc. Common Stock
TBHC
$49.6M
| $67K | ﹤0.01% |
41,616
+29,204
| +235% | +$47K |
|
1298
Montrose Environmental
MEG
$1.06B
| $67K | ﹤0.01% |
+3,614
| New | +$67K |
|
1299
Sasol
SSL
$4.53B
| $67K | ﹤0.01% |
14,791
+11,748
| +386% | +$53.2K |
|
1300
Harmony Gold Mining
HMY
$9.54B
| $66K | ﹤0.01% |
8,130
-74,574
| -90% | -$605K |
|