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
|
$586M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
$82.5M |
| 3 |
Intel
INTC
|
$40.4M |
| 4 |
Invesco QQQ Trust
QQQ
|
$39.4M |
| 5 |
Uber
UBER
|
$36.3M |
Top Sells
| 1 |
NVIDIA
NVDA
|
$130M |
| 2 |
Pinduoduo
PDD
|
$95.7M |
| 3 |
Boeing
BA
|
$56.2M |
| 4 |
KraneShares CSI China Internet ETF
KWEB
|
$40.7M |
| 5 |
Microsoft
MSFT
|
$40.5M |
Sector Composition
| 1 | Technology | 34.29% |
| 2 | Consumer Discretionary | 11.38% |
| 3 | Healthcare | 9.65% |
| 4 | Financials | 6.33% |
| 5 | Communication Services | 5.52% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
551
Kanzhun
BZ
$11.1B
| $716K | ﹤0.01% |
51,946
-36,264
| -41% | -$500K |
|
552
3M
MMM
$82.7B
| $715K | ﹤0.01% |
5,545
-82,293
| -94% | -$10.6M |
|
553
Fluor
FLR
$6.72B
| $712K | ﹤0.01% |
+14,439
| New | +$712K |
|
554
Timken Company
TKR
$5.42B
| $711K | ﹤0.01% |
9,974
-5,405
| -35% | -$385K |
|
555
Logitech
LOGI
$15.8B
| $710K | ﹤0.01% |
8,632
+5,734
| +198% | +$472K |
|
556
Zillow
Z
$21.3B
| $707K | ﹤0.01% |
9,550
-52,127
| -85% | -$3.86M |
|
|
GOGL
557
DELISTED
Golden Ocean Group
GOGL
| $706K | ﹤0.01% |
+78,800
| New | +$706K |
|
558
Dentsply Sirona
XRAY
$2.92B
| $706K | ﹤0.01% |
+37,235
| New | +$706K |
|
|
LOGC
559
DELISTED
ContextLogic
LOGC
| $699K | ﹤0.01% |
99,502
+39,126
| +65% | +$275K |
|
560
YieldMax NVDA Option Income Strategy ETF
NVDY
$1.8B
| $698K | ﹤0.01% |
29,897
+23,421
| +362% | +$547K |
|
561
Molson Coors Class B
TAP
$9.96B
| $698K | ﹤0.01% |
+12,179
| New | +$698K |
|
562
BlackBerry
BB
$2.31B
| $696K | ﹤0.01% |
184,390
+79,299
| +75% | +$299K |
|
|
VRN
563
DELISTED
Veren
VRN
| $694K | ﹤0.01% |
+135,118
| New | +$694K |
|
564
Wolverine World Wide
WWW
$2.59B
| $693K | ﹤0.01% |
31,243
-135,774
| -81% | -$3.01M |
|
565
ProShares Ultra S&P500
SSO
$7.2B
| $691K | ﹤0.01% |
7,478
+416
| +6% | +$38.4K |
|
566
Immatics
IMTX
$761M
| $690K | ﹤0.01% |
+97,085
| New | +$690K |
|
567
Star Bulk Carriers
SBLK
$2.21B
| $688K | ﹤0.01% |
+46,066
| New | +$688K |
|
568
Scotiabank
BNS
$78.8B
| $686K | ﹤0.01% |
+12,779
| New | +$686K |
|
569
Vanguard Long-Term Treasury ETF
VGLT
$10B
| $683K | ﹤0.01% |
12,342
+11,187
| +969% | +$619K |
|
570
Mister Car Wash
MCW
$1.85B
| $673K | ﹤0.01% |
+92,417
| New | +$673K |
|
571
GigaCloud Technology
GCT
$1.02B
| $662K | ﹤0.01% |
35,781
-2,420
| -6% | -$44.8K |
|
|
FFAI
572
Faraday Future Intelligent Electric Inc. Common Stock
FFAI
$266M
| $661K | ﹤0.01% |
+272,264
| New | +$661K |
|
573
BuzzFeed
BZFD
$68.9M
| $659K | ﹤0.01% |
246,883
+88,811
| +56% | +$237K |
|
|
BORR
574
Borr Drilling
BORR
$870M
| $654K | ﹤0.01% |
167,792
+87,135
| +108% | +$340K |
|
575
BioNTech
BNTX
$27B
| $647K | ﹤0.01% |
5,682
-43,005
| -88% | -$4.9M |
|