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 |
Alphabet (Google) Class C
GOOG
|
$54.1M |
| 2 |
Apple
AAPL
|
$28.6M |
| 3 |
Meta Platforms (Facebook)
META
|
$16.5M |
| 4 |
IBM
IBM
|
$13.4M |
| 5 |
Baidu
BIDU
|
$10.3M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
$9.89M |
| 2 |
McDonald's
MCD
|
$8.52M |
| 3 |
Ralph Lauren
RL
|
$5.22M |
| 4 |
Intel
INTC
|
$4.74M |
| 5 |
WBA
Walgreens Boots Alliance
WBA
|
$4.67M |
Sector Composition
| 1 | Communication Services | 22.01% |
| 2 | Technology | 15.83% |
| 3 | Healthcare | 11.95% |
| 4 | Consumer Discretionary | 9.73% |
| 5 | Financials | 7.98% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
276
Xoma
XOMA
$426M
| $424K | 0.04% |
5,465
+2,989
| +121% | +$232K |
|
|
ETP
277
DELISTED
Energy Transfer Partners L.p.
ETP
| $424K | 0.04% |
8,130
+3,507
| +76% | +$183K |
|
278
Northrop Grumman
NOC
$83.2B
| $421K | 0.04% |
2,655
-3,221
| -55% | -$511K |
|
279
Best Buy
BBY
$16.1B
| $419K | 0.04% |
12,874
+1,497
| +13% | +$48.7K |
|
|
TTPH
280
DELISTED
Tetraphase Pharmaceuticals, Inc.
TTPH
| $416K | 0.03% |
438
+211
| +93% | +$200K |
|
281
NOV
NOV
$4.95B
| $415K | 0.03% |
8,611
-22,640
| -72% | -$1.09M |
|
282
Alcoa
AA
$8.24B
| $413K | 0.03% |
15,440
+8,323
| +117% | +$223K |
|
283
Invesco CurrencyShares Japanese Yen Trust
FXY
$562M
| $412K | 0.03% |
5,200
-1,847
| -26% | -$146K |
|
284
Eli Lilly
LLY
$652B
| $412K | 0.03% |
+4,940
| New | +$412K |
|
285
Grifois
GRFS
$6.89B
| $411K | 0.03% |
26,550
+25,788
| +3,384% | +$399K |
|
286
Transocean
RIG
$2.9B
| $409K | 0.03% |
25,400
+15,947
| +169% | +$257K |
|
287
Bristol-Myers Squibb
BMY
$96B
| $408K | 0.03% |
6,139
-1,966
| -24% | -$131K |
|
288
Direxion Daily Energy Bull 2X Shares
ERX
$218M
| $404K | 0.03% |
807
+284
| +54% | +$142K |
|
|
BPT
289
DELISTED
BP Prudhoe Bay Royalty Trust
BPT
| $401K | 0.03% |
6,501
+6,445
| +11,509% | +$398K |
|
290
Protolabs
PRLB
$1.19B
| $396K | 0.03% |
5,873
+4,599
| +361% | +$310K |
|
291
KKR & Co
KKR
$121B
| $394K | 0.03% |
17,244
-5,893
| -25% | -$135K |
|
|
JOY
292
DELISTED
Joy Global Inc
JOY
| $394K | 0.03% |
10,901
-21,449
| -66% | -$775K |
|
293
Vanguard FTSE Emerging Markets ETF
VWO
$97.2B
| $393K | 0.03% |
9,633
-3,233
| -25% | -$132K |
|
|
MOMO
294
Hello Group
MOMO
$1.37B
| $391K | 0.03% |
24,325
+23,156
| +1,981% | +$372K |
|
|
PNRA
295
DELISTED
Panera Bread Co
PNRA
| $388K | 0.03% |
+2,221
| New | +$388K |
|
296
Autohome
ATHM
$3.39B
| $387K | 0.03% |
7,660
+4,818
| +170% | +$243K |
|
|
ATCO
297
DELISTED
Atlas Corp.
ATCO
| $387K | 0.03% |
20,522
-187
| -0.9% | -$3.53K |
|
298
Embraer
ERJ
$11.2B
| $385K | 0.03% |
12,723
+12,629
| +13,435% | +$382K |
|
299
ProShares UltraShort Yen
YCS
$32.9M
| $381K | 0.03% |
16,532
+12,740
| +336% | +$294K |
|
300
Nokia
NOK
$24.5B
| $375K | 0.03% |
54,813
+54,304
| +10,669% | +$372K |
|