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 |
Financial Select Sector SPDR Fund
XLF
|
+$42.3M |
| 2 |
Shopify
SHOP
|
+$37.4M |
| 3 |
Verizon
VZ
|
+$34M |
| 4 |
iShares China Large-Cap ETF
FXI
|
+$33M |
| 5 |
Merck
MRK
|
+$28M |
Top Sells
| 1 |
AMC Entertainment Holdings
AMC
|
+$38.3M |
| 2 |
Carnival Corp
CCL
|
+$37.6M |
| 3 |
GE Aerospace
GE
|
+$33M |
| 4 |
Advanced Micro Devices
AMD
|
+$30.6M |
| 5 |
Micron Technology
MU
|
+$28.3M |
Sector Composition
| 1 | Technology | 20.53% |
| 2 | Consumer Discretionary | 13.81% |
| 3 | Healthcare | 11.39% |
| 4 | Communication Services | 7.32% |
| 5 | Industrials | 6.51% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1276
BioAtla
BCAB
$45.5M
| $167K | ﹤0.01% |
+8,553
| New | +$167K |
|
|
CDR
1277
DELISTED
Cedar Realty Trust, Inc
CDR
| $167K | ﹤0.01% |
+6,653
| New | +$167K |
|
|
TPTX
1278
DELISTED
Turning Point Therapeutics, Inc. Common Stock
TPTX
| $167K | ﹤0.01% |
3,516
+3,500
| +21,875% | +$166K |
|
1279
AdaptHealth
AHCO
$1.26B
| $166K | ﹤0.01% |
6,795
+5,076
| +295% | +$124K |
|
1280
Green Plains
GPRE
$631M
| $166K | ﹤0.01% |
+4,784
| New | +$166K |
|
1281
Nordic American Tanker
NAT
$669M
| $166K | ﹤0.01% |
98,541
+37,925
| +63% | +$63.9K |
|
1282
Vanguard Mid-Cap ETF
VO
$88B
| $166K | ﹤0.01% |
+654
| New | +$166K |
|
1283
NeueHealth
NEUE
$60.1M
| $166K | ﹤0.01% |
+605
| New | +$166K |
|
1284
Globalstar
GSAT
$3.79B
| $165K | ﹤0.01% |
9,485
+6,846
| +259% | +$119K |
|
|
FLG
1285
Flagstar Financial, Inc.
FLG
$5.27B
| $165K | ﹤0.01% |
4,512
-11,710
| -72% | -$428K |
|
1286
Alector
ALEC
$278M
| $164K | ﹤0.01% |
7,943
-5,578
| -41% | -$115K |
|
1287
Medpace
MEDP
$13.8B
| $164K | ﹤0.01% |
758
-201
| -21% | -$43.5K |
|
1288
RLJ Lodging Trust
RLJ
$1.15B
| $164K | ﹤0.01% |
11,823
+10,762
| +1,014% | +$149K |
|
1289
Sphere Entertainment
SPHR
$2.1B
| $164K | ﹤0.01% |
2,345
-5,676
| -71% | -$397K |
|
|
EH
1290
EHang Holdings
EH
$1.19B
| $163K | ﹤0.01% |
+10,965
| New | +$163K |
|
|
HUYA
1291
Huya Inc
HUYA
$780M
| $163K | ﹤0.01% |
23,595
-114,430
| -83% | -$791K |
|
1292
Resources Connection
RGP
$172M
| $163K | ﹤0.01% |
9,181
+8,841
| +2,600% | +$157K |
|
|
SLI
1293
Standard Lithium
SLI
$592M
| $163K | ﹤0.01% |
+16,660
| New | +$163K |
|
|
ETHZ
1294
ETHZilla Corporation Common Stock
ETHZ
$422M
| $162K | ﹤0.01% |
109
+64
| +142% | +$95.1K |
|
1295
Vail Resorts
MTN
$5.33B
| $162K | ﹤0.01% |
495
-5,381
| -92% | -$1.76M |
|
|
BFX
1296
DELISTED
BowFlex Inc.
BFX
| $162K | ﹤0.01% |
26,516
-29,398
| -53% | -$180K |
|
1297
Alliance Resource Partners
ARLP
$2.92B
| $161K | ﹤0.01% |
12,779
-20,999
| -62% | -$265K |
|
1298
Travel + Leisure Co
TNL
$4.02B
| $161K | ﹤0.01% |
2,931
-3,893
| -57% | -$214K |
|
1299
Direxion Daily S&P Biotech Bear 3X Shares
LABD
$72.1M
| $160K | ﹤0.01% |
6,246
+4,928
| +374% | +$126K |
|
1300
NewMarket
NEU
$7.87B
| $160K | ﹤0.01% |
+467
| New | +$160K |
|