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 |
Energy Select Sector SPDR Fund
XLE
|
+$93.9M |
| 2 |
Pfizer
PFE
|
+$89.5M |
| 3 |
Boeing
BA
|
+$66.7M |
| 4 |
Intel
INTC
|
+$60.2M |
| 5 |
Meta Platforms (Facebook)
META
|
+$52.5M |
Top Sells
| 1 |
NVIDIA
NVDA
|
+$146M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$109M |
| 3 |
Alibaba
BABA
|
+$81.8M |
| 4 |
Walt Disney
DIS
|
+$80.2M |
| 5 |
Citigroup
C
|
+$55.3M |
Sector Composition
| 1 | Technology | 19.03% |
| 2 | Healthcare | 13.86% |
| 3 | Consumer Discretionary | 12.44% |
| 4 | Industrials | 8.48% |
| 5 | Communication Services | 7.95% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1901
iShares Russell 3000 ETF
IWV
$16.9B
| $8K | ﹤0.01% |
27
-2,784
| -99% | -$825K |
|
1902
Lightbridge
LTBR
$383M
| $8K | ﹤0.01% |
2,824
-26,737
| -90% | -$75.7K |
|
1903
LAVA Therapeutics
LVTX
$39.7M
| $8K | ﹤0.01% |
2,589
+2,149
| +488% | +$6.64K |
|
|
MOGO
1904
Mogo
MOGO
$43.7M
| $8K | ﹤0.01% |
4,464
+1,979
| +80% | +$3.55K |
|
1905
Energy Vault
NRGV
$366M
| $8K | ﹤0.01% |
4,645
-367
| -7% | -$632 |
|
|
PDS
1906
Precision Drilling
PDS
$771M
| $8K | ﹤0.01% |
128
-2,059
| -94% | -$129K |
|
1907
AXS Real Estate Income ETF
RINC
$35.3M
| $8K | ﹤0.01% |
347
+27
| +8% | +$622 |
|
|
SIFY
1908
Sify Technologies
SIFY
$880M
| $8K | ﹤0.01% |
1,063
+1,026
| +2,773% | +$7.72K |
|
1909
Sonoco
SON
$4.65B
| $8K | ﹤0.01% |
+146
| New | +$8K |
|
1910
TaskUs
TASK
$1.57B
| $8K | ﹤0.01% |
+721
| New | +$8K |
|
1911
Toro Corp
TORO
$58.2M
| $8K | ﹤0.01% |
1,491
-1,530
| -51% | -$8.21K |
|
|
UHT
1912
Universal Health Realty Income Trust
UHT
$569M
| $8K | ﹤0.01% |
+218
| New | +$8K |
|
1913
VEON
VEON
$3.64B
| $8K | ﹤0.01% |
364
+213
| +141% | +$4.68K |
|
1914
Xencor
XNCR
$660M
| $8K | ﹤0.01% |
383
-99
| -21% | -$2.07K |
|
1915
SPDR S&P Transportation ETF
XTN
$144M
| $8K | ﹤0.01% |
+100
| New | +$8K |
|
1916
Ziff Davis
ZD
$1.57B
| $8K | ﹤0.01% |
128
-28
| -18% | -$1.75K |
|
|
DCPH
1917
DELISTED
Deciphera Pharmaceuticals, Inc. Common Stock
DCPH
| $8K | ﹤0.01% |
519
-12,747
| -96% | -$196K |
|
|
MARK
1918
DELISTED
Remark Holdings, Inc.
MARK
| $8K | ﹤0.01% |
+41,428
| New | +$8K |
|
1919
ALPS Clean Energy ETF
ACES
$96.6M
| $7K | ﹤0.01% |
+244
| New | +$7K |
|
1920
Amalgamated Financial
AMAL
$837M
| $7K | ﹤0.01% |
311
-1,319
| -81% | -$29.7K |
|
1921
American Axle
AXL
$743M
| $7K | ﹤0.01% |
+956
| New | +$7K |
|
1922
Champions Oncology
CSBR
$96.1M
| $7K | ﹤0.01% |
+1,597
| New | +$7K |
|
1923
Crexendo
CXDO
$204M
| $7K | ﹤0.01% |
1,457
-13,840
| -90% | -$66.5K |
|
1924
DLH Holdings
DLHC
$80.3M
| $7K | ﹤0.01% |
+558
| New | +$7K |
|
1925
DarioHealth
DRIO
$14.9M
| $7K | ﹤0.01% |
259
+13
| +5% | +$351 |
|