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
| Rank | Stock | Value |
|---|---|---|
| 1 |
Microsoft
MSFT
|
+$53.9M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$52.9M |
| 3 |
NVIDIA
NVDA
|
+$47.1M |
| 4 |
PayPal
PYPL
|
+$41.7M |
| 5 |
Alphabet (Google) Class C
GOOG
|
+$28.4M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$51.4M |
| 2 |
Walmart Inc
WMT
|
+$46.4M |
| 3 |
VanEck Oil Services ETF
OIH
|
+$34.2M |
| 4 |
Adobe
ADBE
|
+$33.5M |
| 5 |
Starbucks
SBUX
|
+$26.8M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.41% |
| 2 | Healthcare | 0.21% |
| 3 | Consumer Discretionary | 0.21% |
| 4 | Communication Services | 0.2% |
| 5 | Financials | 0.15% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
5126
PUT
Expro Ltd
XPRO
$1.71B
| $97K | ﹤0.01% |
5,500
-25,700
| -82% | -$464K |
|
|
LGF.B
5127
PUT
DELISTED
Lions Gate Entertainment Corp. Class B Non-Voting Shares
LGF.B
| $97K | ﹤0.01% |
11,000
+9,700
| +746% | +$95.5K |
|
|
TWOU
5128
CALL
DELISTED
2U Inc
TWOU
| $97K | ﹤0.01% |
810
+137
| +20% | +$18.2K |
|
|
DCP
5129
CALL
DELISTED
DCP Midstream, LP
DCP
| $97K | ﹤0.01% |
55,800
+7,400
| +15% | +$308K |
|
|
AGEN
5130
CALL
Agenus
AGEN
$329M
| $96K | ﹤0.01% |
10,540
-4,302
| -29% | -$138K |
|
5131
CALL
Federal Realty Investment Trust
FRT
$10.7B
| $96K | ﹤0.01% |
1,000
-4,300
| -81% | -$404K |
|
5132
Hyliion Holdings
HYLN
$646M
| $96K | ﹤0.01% |
57,592
+16,645
| +41% | +$28.1K |
|
|
ADAM
5133
CALL
Adamas Trust
ADAM
$803M
| $96K | ﹤0.01% |
9,700
-2,400
| -20% | -$23.8K |
|
5134
PUT
Ormat Technologies
ORA
$5.94B
| $96K | ﹤0.01% |
1,200
-9,200
| -88% | -$779K |
|
5135
Prosperity Bancshares
PB
$8.97B
| $96K | ﹤0.01% |
1,707
-5,543
| -76% | -$331K |
|
|
UBX
5136
CALL
DELISTED
Unity Biotechnology
UBX
| $96K | ﹤0.01% |
37,700
-12,000
| -24% | -$31.7K |
|
|
CCEC
5137
PUT
Capital Clean Energy Carriers
CCEC
$1.35B
| $96K | ﹤0.01% |
7,000
-4,700
| -40% | -$62.2K |
|
|
SLCA
5138
DELISTED
U.S. SILICA HOLDINGS, INC.
SLCA
| $96K | ﹤0.01% |
7,993
+3,234
| +68% | +$40K |
|
5139
CALL
Alignment Healthcare
ALHC
$3.85B
| $95K | ﹤0.01% |
16,600
-13,400
| -45% | -$86.6K |
|
5140
CALL
CION Investment
CION
$294M
| $95K | ﹤0.01% |
9,200
+2,500
| +37% | +$24.7K |
|
5141
Cytosorbents Corp
CTSO
$22M
| $95K | ﹤0.01% |
26,581
+2,033
| +8% | +$6.43K |
|
5142
CALL
Eagle Bancorp
EGBN
$838M
| $95K | ﹤0.01% |
+4,500
| New | +$106K |
|
5143
CALL
O-I Glass
OI
$1.13B
| $95K | ﹤0.01% |
4,500
+3,700
| +463% | +$79.9K |
|
5144
PUT
Simplify US Equity PLUS Convexity ETF
SPYC
$111M
| $95K | ﹤0.01% |
+3,500
| New | +$96.3K |
|
|
SVM
5145
Silvercorp Metals
SVM
$2.13B
| $95K | ﹤0.01% |
33,747
-51,441
| -60% | -$175K |
|
5146
CALL
Savara
SVRA
$1.14B
| $95K | ﹤0.01% |
29,900
-25,200
| -46% | -$59.2K |
|
|
THS
5147
PUT
DELISTED
Treehouse Foods
THS
| $95K | ﹤0.01% |
1,900
+1,500
| +375% | +$76.9K |
|
5148
CALL
Sixth Street Specialty
TSLX
$1.64B
| $95K | ﹤0.01% |
5,100
+2,800
| +122% | +$51K |
|
|
UCAR
5149
CALL
U Power Ltd
UCAR
$26M
| $95K | ﹤0.01% |
+13
| New | +$83.6K |
|
5150
Black Stone Minerals
BSM
$3.14B
| $94K | ﹤0.01% |
+5,912
| New | +$94.6K |
|
Similar funds
Simplex Trading's Q2 2023 Portfolio in Review
As of Q2 2023, Simplex Trading held 10,535 positions worth $122B, up 6.9% from $114B the previous quarter. Its ten largest holdings account for 43% of the portfolio.
Simplex Trading's Q2 2023 filing shows 1,474 new, 3,350 increased, 3,913 reduced and 1,517 closed positions. Its largest new stake was Microsoft: 171,935 shares worth $58.5M. The largest sale was Apple, an estimated $51.4M.
By sector, the portfolio is most concentrated in Technology at 0.41% of assets, down from 0.42% a quarter earlier, followed by Healthcare and Consumer Discretionary.
- Simplex Trading's largest Q2 2023 buy was Microsoft: 171,935 shares worth $58.5M.
- Simplex Trading added most to iShares 20+ Year Treasury Bond ETF in Q2 2023, an estimated $52.9M increase.
- Simplex Trading's biggest Q2 2023 reduction was Adobe, cutting an estimated $33.5M.
- Simplex Trading fully exited Apple in Q2 2023, selling an estimated $51.4M.
- Simplex Trading's ten largest holdings make up 43% of its $122B portfolio in Q2 2023.
- Simplex Trading opened 1,474 new positions and closed 1,517 in Q2 2023.
- Simplex Trading's portfolio value rose 6.9% quarter-over-quarter to $122B.
Based on Simplex Trading's 13F filing for Q2 2023, filed 4 Aug 2023.