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 | |
|---|---|---|---|---|---|---|
276
Kinross Gold
KGC
$28.6B
| $2.14M | ﹤0.01% |
348,304
+203,574
| +141% | +$1.25M |
|
277
Bank of America
BAC
$387B
| $2.13M | ﹤0.01% |
56,235
-79,999
| -59% | -$3.03M |
|
278
Invesco CurrencyShares Japanese Yen Trust
FXY
$560M
| $2.13M | ﹤0.01% |
34,802
-12,558
| -27% | -$769K |
|
279
DexCom
DXCM
$26.5B
| $2.13M | ﹤0.01% |
+15,327
| New | +$2.13M |
|
280
Direxion Daily Energy Bull 2X Shares
ERX
$218M
| $2.11M | ﹤0.01% |
29,749
-66,215
| -69% | -$4.69M |
|
281
Tower Semiconductor
TSEM
$7.5B
| $2.1M | ﹤0.01% |
+62,670
| New | +$2.1M |
|
282
Consumer Discretionary Select Sector SPDR Fund
XLY
$24.7B
| $2.1M | ﹤0.01% |
+11,394
| New | +$2.1M |
|
283
Lamar Advertising Co
LAMR
$12.5B
| $2.09M | ﹤0.01% |
17,497
+5,362
| +44% | +$640K |
|
284
Direxion Daily S&P 500 Bear 3x Shares
SPXS
$410M
| $2.09M | ﹤0.01% |
239,273
+190,484
| +390% | +$1.66M |
|
285
T. Rowe Price
TROW
$23.3B
| $2.09M | ﹤0.01% |
+17,106
| New | +$2.09M |
|
286
United States Natural Gas Fund
UNG
$578M
| $2.05M | ﹤0.01% |
140,611
-5,701
| -4% | -$83K |
|
287
Goodyear
GT
$2.43B
| $2.01M | ﹤0.01% |
146,497
-77,660
| -35% | -$1.07M |
|
288
Krispy Kreme
DNUT
$586M
| $2.01M | ﹤0.01% |
131,922
+127,657
| +2,993% | +$1.94M |
|
289
Fastly
FSLY
$1.27B
| $2.01M | ﹤0.01% |
154,888
+69,820
| +82% | +$905K |
|
290
Hecla Mining
HL
$7.34B
| $1.99M | ﹤0.01% |
414,104
+249,780
| +152% | +$1.2M |
|
291
Rio Tinto
RIO
$101B
| $1.99M | ﹤0.01% |
31,180
+29,600
| +1,873% | +$1.89M |
|
292
Kenvue
KVUE
$35.2B
| $1.98M | ﹤0.01% |
92,357
-298,903
| -76% | -$6.41M |
|
293
Church & Dwight Co
CHD
$22B
| $1.97M | ﹤0.01% |
18,860
+16,606
| +737% | +$1.73M |
|
294
Interactive Brokers
IBKR
$29B
| $1.97M | ﹤0.01% |
70,428
-89,688
| -56% | -$2.5M |
|
295
YPF
YPF
$9.39B
| $1.97M | ﹤0.01% |
+99,275
| New | +$1.97M |
|
296
Natural Resource Partners
NRP
$1.34B
| $1.96M | ﹤0.01% |
21,337
+21,252
| +25,002% | +$1.96M |
|
297
Sibanye-Stillwater
SBSW
$6.75B
| $1.95M | ﹤0.01% |
414,881
+105,013
| +34% | +$495K |
|
298
Medical Properties Trust
MPW
$3.01B
| $1.93M | ﹤0.01% |
+411,307
| New | +$1.93M |
|
299
Golar LNG
GLNG
$4.01B
| $1.93M | ﹤0.01% |
80,322
-96,474
| -55% | -$2.32M |
|
300
SPDR Portfolio S&P 500 Growth ETF
SPYG
$42.3B
| $1.92M | ﹤0.01% |
+26,299
| New | +$1.92M |
|