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 |
Apple
AAPL
|
$186M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$86.2M |
| 3 |
SPDR S&P 500 ETF Trust
SPY
|
$56.8M |
| 4 |
iShares Silver Trust
SLV
|
$42.9M |
| 5 |
Advanced Micro Devices
AMD
|
$36.5M |
Top Sells
| 1 |
Occidental Petroleum
OXY
|
$44.4M |
| 2 |
Financial Select Sector SPDR Fund
XLF
|
$42.8M |
| 3 |
Verizon
VZ
|
$40.8M |
| 4 |
Direxion Daily S&P 500 Bull 3x Shares
SPXL
|
$33.6M |
| 5 |
iShares China Large-Cap ETF
FXI
|
$33M |
Sector Composition
| 1 | Technology | 23.31% |
| 2 | Consumer Discretionary | 13.02% |
| 3 | Industrials | 8.24% |
| 4 | Healthcare | 7.47% |
| 5 | Financials | 6.38% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
526
iShares MSCI Canada ETF
EWC
$3.24B
| $876K | ﹤0.01% |
21,797
+18,950
| +666% | +$762K |
|
527
Qorvo
QRVO
$8.61B
| $866K | ﹤0.01% |
6,979
+2,000
| +40% | +$248K |
|
528
Hycroft Mining Holding Corp
HYMC
$215M
| $861K | ﹤0.01% |
+37,440
| New | +$861K |
|
529
Edison International
EIX
$21B
| $860K | ﹤0.01% |
12,273
-9,263
| -43% | -$649K |
|
530
ProShares Ultra Silver
AGQ
$894M
| $859K | ﹤0.01% |
22,318
+10,421
| +88% | +$401K |
|
531
Globalstar
GSAT
$3.96B
| $851K | ﹤0.01% |
38,622
+29,137
| +307% | +$642K |
|
532
ProShares UltraShort Gold
GLL
$45.9M
| $849K | ﹤0.01% |
15,385
+15,383
| +769,150% | +$849K |
|
533
Atea Pharmaceuticals
AVIR
$267M
| $847K | ﹤0.01% |
117,345
+83,810
| +250% | +$605K |
|
534
BioMarin Pharmaceuticals
BMRN
$11.1B
| $843K | ﹤0.01% |
10,942
-15,523
| -59% | -$1.2M |
|
535
Intercontinental Exchange
ICE
$99.8B
| $843K | ﹤0.01% |
6,385
-17,337
| -73% | -$2.29M |
|
|
RFP
536
DELISTED
Resolute Forest Products Inc.
RFP
| $841K | ﹤0.01% |
65,195
-27,175
| -29% | -$351K |
|
537
Crinetics Pharmaceuticals
CRNX
$3.35B
| $837K | ﹤0.01% |
38,154
+17,874
| +88% | +$392K |
|
538
Healthcare Realty
HR
$6.35B
| $832K | ﹤0.01% |
26,560
-55,125
| -67% | -$1.73M |
|
|
MNDT
539
DELISTED
Mandiant, Inc. Common Stock
MNDT
| $832K | ﹤0.01% |
37,303
-159,657
| -81% | -$3.56M |
|
540
Banco Santander
SAN
$141B
| $831K | ﹤0.01% |
245,920
-166,607
| -40% | -$563K |
|
541
SpartanNash
SPTN
$908M
| $827K | ﹤0.01% |
25,072
+21,792
| +664% | +$719K |
|
542
iShares MSCI ACWI ETF
ACWI
$22.1B
| $825K | ﹤0.01% |
+8,269
| New | +$825K |
|
543
Invesco CurrencyShares Canadian Dollar Trust
FXC
$91.7M
| $824K | ﹤0.01% |
10,536
+10,436
| +10,436% | +$816K |
|
544
Direxion Daily Homebuilders & Supplies Bull 3X Shares
NAIL
$676M
| $821K | ﹤0.01% |
20,276
+2,305
| +13% | +$93.3K |
|
545
Nice
NICE
$8.67B
| $821K | ﹤0.01% |
3,750
+2,552
| +213% | +$559K |
|
546
ProShares Ultra Gold
UGL
$618M
| $821K | ﹤0.01% |
+49,692
| New | +$821K |
|
547
International Flavors & Fragrances
IFF
$16.9B
| $818K | ﹤0.01% |
6,229
-12,857
| -67% | -$1.69M |
|
|
LSXMA
548
DELISTED
Liberty Media Corporation Series A Liberty SiriusXM Common Stock
LSXMA
| $818K | ﹤0.01% |
24,381
+24,024
| +6,729% | +$806K |
|
549
LivePerson
LPSN
$89.9M
| $817K | ﹤0.01% |
+33,490
| New | +$817K |
|
550
PBF Energy
PBF
$3.3B
| $816K | ﹤0.01% |
+33,515
| New | +$816K |
|