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 |
iShares Russell 2000 ETF
IWM
|
+$27.5M |
| 2 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
+$16.3M |
| 3 |
Walt Disney
DIS
|
+$13.9M |
| 4 |
iShares MSCI Emerging Markets ETF
EEM
|
+$10.4M |
| 5 |
Gilead Sciences
GILD
|
+$10.4M |
Top Sells
| 1 |
Alphabet (Google) Class C
GOOG
|
+$95.3M |
| 2 |
Apple
AAPL
|
+$21.1M |
| 3 |
Meta Platforms (Facebook)
META
|
+$20M |
| 4 |
IBM
IBM
|
+$13.4M |
| 5 |
Baidu
BIDU
|
+$12.1M |
Sector Composition
| 1 | Healthcare | 13.63% |
| 2 | Communication Services | 9.81% |
| 3 | Consumer Discretionary | 9.7% |
| 4 | Technology | 9.67% |
| 5 | Financials | 9.48% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
HIVE
851
DELISTED
AEROHIVE NETWORKS, INC.
HIVE
| $67K | ﹤0.01% |
11,299
+9,284
| +461% | +$55.1K |
|
|
CVRR
852
DELISTED
CVR Refining, LP
CVRR
| $67K | ﹤0.01% |
3,520
-5,900
| -63% | -$112K |
|
853
Acadia Pharmaceuticals
ACAD
$4.08B
| $66K | ﹤0.01% |
2,026
+1,004
| +98% | +$32.7K |
|
854
iShares US Regional Banks ETF
IAT
$652M
| $66K | ﹤0.01% |
1,982
+1,189
| +150% | +$39.6K |
|
855
iRobot
IRBT
$114M
| $66K | ﹤0.01% |
2,294
+846
| +58% | +$24.3K |
|
856
Newmont
NEM
$87.5B
| $66K | ﹤0.01% |
4,149
-2,635
| -39% | -$41.9K |
|
857
SPX Corp
SPXC
$9.4B
| $66K | ﹤0.01% |
+5,549
| New | +$66K |
|
858
Sasol
SSL
$4.53B
| $66K | ﹤0.01% |
2,399
+964
| +67% | +$26.5K |
|
859
Waste Management
WM
$88.8B
| $66K | ﹤0.01% |
1,339
-1,012
| -43% | -$49.9K |
|
860
Gannett
GCI
$632M
| $65K | ﹤0.01% |
4,236
+488
| +13% | +$7.49K |
|
861
ProShares UltraShort Gold
GLL
$50.7M
| $65K | ﹤0.01% |
306
+230
| +303% | +$48.9K |
|
862
iShares Core S&P 500 ETF
IVV
$675B
| $65K | ﹤0.01% |
+342
| New | +$65K |
|
|
AKS
863
DELISTED
AK Steel Holding Corp.
AKS
| $65K | ﹤0.01% |
27,210
+26,204
| +2,605% | +$62.6K |
|
|
JIVE
864
DELISTED
Jive Software, Inc.
JIVE
| $65K | ﹤0.01% |
+13,958
| New | +$65K |
|
865
Light & Wonder
LNW
$7.42B
| $64K | ﹤0.01% |
+6,185
| New | +$64K |
|
866
Titan Machinery
TITN
$466M
| $64K | ﹤0.01% |
+5,597
| New | +$64K |
|
867
Thor Industries
THO
$5.83B
| $63K | ﹤0.01% |
1,226
-587
| -32% | -$30.2K |
|
|
SGI
868
Somnigroup International Inc.
SGI
$18.1B
| $63K | ﹤0.01% |
3,580
+1,384
| +63% | +$24.4K |
|
|
DYN
869
DELISTED
Dynegy, Inc.
DYN
| $63K | ﹤0.01% |
3,057
-4,185
| -58% | -$86.2K |
|
870
Assertio
ASRT
$77.5M
| $62K | ﹤0.01% |
835
-1,582
| -65% | -$117K |
|
871
Invesco NASDAQ Internet ETF
PNQI
$812M
| $62K | ﹤0.01% |
+4,555
| New | +$62K |
|
872
Prospect Capital
PSEC
$1.29B
| $62K | ﹤0.01% |
8,719
+8,121
| +1,358% | +$57.7K |
|
|
AWAY
873
DELISTED
HOMEAWAY INC COM
AWAY
| $62K | ﹤0.01% |
2,339
-5,093
| -69% | -$135K |
|
|
FRP
874
DELISTED
Fairpoint Communications, Inc.
FRP
| $62K | ﹤0.01% |
4,050
-392
| -9% | -$6K |
|
875
Direxion Daily Gold Miners Index Bull 2X Shares
NUGT
$928M
| $61K | ﹤0.01% |
534
-387
| -42% | -$44.2K |
|