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 |
Apple
AAPL
|
+$179M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$90.1M |
| 3 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$56M |
| 4 |
iShares Silver Trust
SLV
|
+$41.7M |
| 5 |
Advanced Micro Devices
AMD
|
+$39.8M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street Financial Select Sector SPDR ETF
XLF
|
+$42.8M |
| 2 |
Verizon
VZ
|
+$42.5M |
| 3 |
Occidental Petroleum
OXY
|
+$34.7M |
| 4 |
iShares China Large-Cap ETF
FXI
|
+$33M |
| 5 |
Direxion Daily S&P 500 Bull 3x ETF
SPXL
|
+$32.7M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.67% |
| 2 | Consumer Discretionary | 0.37% |
| 3 | Industrials | 0.24% |
| 4 | Healthcare | 0.22% |
| 5 | Financials | 0.19% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
3126
CALL
Universal Corp
UVV
$1.34B
| $836K | ﹤0.01% |
14,400
+3,100
| +27% | +$171K |
|
3127
PUT
F5
FFIV
$22.1B
| $835K | ﹤0.01% |
4,000
-3,800
| -49% | -$798K |
|
3128
PUT
Alamos Gold
AGI
$12.4B
| $834K | ﹤0.01% |
99,100
+86,600
| +693% | +$652K |
|
|
NSTB
3129
PUT
DELISTED
Northern Star Investment Corp. II
NSTB
| $834K | ﹤0.01% |
85,300
+75,300
| +753% | +$733K |
|
3130
Healthcare Realty
HR
$7.42B
| $832K | ﹤0.01% |
26,560
-55,125
| -67% | -$1.74M |
|
3131
PUT
Lindsay Corp
LNN
$1.16B
| $832K | ﹤0.01% |
5,300
+4,500
| +563% | +$620K |
|
|
MNDT
3132
DELISTED
Mandiant, Inc. Common Stock
MNDT
| $832K | ﹤0.01% |
37,303
-159,657
| -81% | -$2.95M |
|
3133
CALL
Lazard
LAZ
$4.37B
| $831K | ﹤0.01% |
24,100
-8,500
| -26% | -$329K |
|
3134
Banco Santander
SAN
$194B
| $831K | ﹤0.01% |
245,920
-166,607
| -40% | -$583K |
|
3135
CALL
MidCap Financial Investment
MFIC
$784M
| $830K | ﹤0.01% |
62,800
+700
| +1% | +$9.29K |
|
|
AYX
3136
PUT
DELISTED
Alteryx Inc
AYX
| $829K | ﹤0.01% |
11,600
-4,100
| -26% | -$242K |
|
|
HGEN
3137
CALL
DELISTED
HUMANIGEN, INC.
HGEN
| $829K | ﹤0.01% |
275,700
+172,600
| +167% | +$462K |
|
|
SPTN
3138
DELISTED
SpartanNash
SPTN
| $827K | ﹤0.01% |
25,072
+21,792
| +664% | +$616K |
|
3139
iShares MSCI ACWI ETF
ACWI
$32.6B
| $825K | ﹤0.01% |
+8,269
| New | +$824K |
|
3140
CALL
SelectQuote
SLQT
$114M
| $825K | ﹤0.01% |
295,900
+58,400
| +25% | +$281K |
|
|
DCPH
3141
CALL
DELISTED
Deciphera Pharmaceuticals, Inc. Common Stock
DCPH
| $825K | ﹤0.01% |
89,000
-7,400
| -8% | -$62.9K |
|
3142
PUT
Community Health Systems
CYH
$385M
| $824K | ﹤0.01% |
69,500
-3,000
| -4% | -$36.5K |
|
3143
CALL
Cytokinetics
CYTK
$11B
| $824K | ﹤0.01% |
22,400
+19,700
| +730% | +$700K |
|
3144
Invesco CurrencyShares Canadian Dollar Trust
FXC
$69.2M
| $824K | ﹤0.01% |
10,536
+10,436
| +10,436% | +$807K |
|
3145
PUT
ZipRecruiter
ZIP
$318M
| $822K | ﹤0.01% |
35,800
+1,000
| +3% | +$21.7K |
|
3146
PUT
Kennametal
KMT
$2.68B
| $821K | ﹤0.01% |
28,700
+18,900
| +193% | +$621K |
|
3147
Direxion Daily Homebuilders & Supplies Bull 3X ETF
NAIL
$584M
| $821K | ﹤0.01% |
20,276
+2,305
| +13% | +$156K |
|
3148
Nice
NICE
$5.29B
| $821K | ﹤0.01% |
3,750
+2,552
| +213% | +$619K |
|
3149
CALL
Rocket Lab Corp
RKLB
$39.9B
| $821K | ﹤0.01% |
102,100
+6,100
| +6% | +$56.8K |
|
3150
ProShares Ultra Gold
UGL
$652M
| $821K | ﹤0.01% |
+49,692
| New | +$780K |
|
Similar funds
Simplex Trading's Q1 2022 Portfolio in Review
As of Q1 2022, Simplex Trading held 12,038 positions worth $109B, up 10% from $99B the previous quarter. Its ten largest holdings account for 37% of the portfolio.
Simplex Trading deployed $17.5B of net new capital in Q1 2022, opening 1,603 new positions and adding to 4,441 existing holdings. Its largest new stake was iShares 20+ Year Treasury Bond ETF: 652,921 shares worth $86.2M.
By sector, the portfolio is most concentrated in Technology at 0.67% of assets, up from 0.61% a quarter earlier, followed by Consumer Discretionary and Industrials.
On the sell side, the largest reduction was Verizon, an estimated $42.5M trimmed.
- Simplex Trading's largest Q1 2022 buy was iShares 20+ Year Treasury Bond ETF: 652,921 shares worth $86.2M.
- Simplex Trading added most to Apple in Q1 2022, an estimated $179M increase.
- Simplex Trading's biggest Q1 2022 reduction was Verizon, cutting an estimated $42.5M.
- Simplex Trading fully exited State Street Financial Select Sector SPDR ETF in Q1 2022, selling an estimated $42.8M.
- Simplex Trading's ten largest holdings make up 37% of its $109B portfolio in Q1 2022.
- Simplex Trading opened 1,603 new positions and closed 1,637 in Q1 2022.
- Simplex Trading's portfolio value rose 10% quarter-over-quarter to $109B.
Based on Simplex Trading's 13F filing for Q1 2022, filed 2 May 2022.