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 | |
|---|---|---|---|---|---|---|
6401
CALL
Flux Power
FLUX
$11.2M
| $83K | ﹤0.01% |
31,200
-12,500
| -29% | -$38K |
|
6402
CALL
MicroSectors FANG+ ETNs due Jan 8 2038
FNGS
$556M
| $83K | ﹤0.01% |
2,900
+700
| +32% | +$20.1K |
|
6403
Futu Holdings
FUTU
$14.7B
| $83K | ﹤0.01% |
2,578
-120,540
| -98% | -$4.83M |
|
6404
Health Catalyst
HCAT
$154M
| $83K | ﹤0.01% |
3,209
+3,201
| +40,013% | +$90.8K |
|
6405
Kornit Digital
KRNT
$705M
| $83K | ﹤0.01% |
+1,008
| New | +$97.2K |
|
|
LTC
6406
LTC Properties
LTC
$2.06B
| $83K | ﹤0.01% |
+2,175
| New | +$76.9K |
|
6407
NETSCOUT
NTCT
$2.96B
| $83K | ﹤0.01% |
2,596
-3,521
| -58% | -$111K |
|
6408
POSCO
PKX
$16.1B
| $83K | ﹤0.01% |
1,411
+993
| +238% | +$58.6K |
|
6409
CALL
Spruce Power Holding Corp
SPRU
$35.8M
| $83K | ﹤0.01% |
5,225
-338
| -6% | -$5.88K |
|
|
TBI
6410
CALL
Trueblue
TBI
$215M
| $83K | ﹤0.01% |
2,900
+2,800
| +2,800% | +$76.9K |
|
6411
CALL
Vanguard Total International Stock ETF
VXUS
$155B
| $83K | ﹤0.01% |
1,400
+300
| +27% | +$18.3K |
|
6412
CALL
Advanced Drainage Systems
WMS
$10.6B
| $83K | ﹤0.01% |
700
-800
| -53% | -$94.9K |
|
6413
PUT
WisdomTree
WT
$2.96B
| $83K | ﹤0.01% |
14,300
-70,700
| -83% | -$404K |
|
|
PDCE
6414
DELISTED
PDC Energy, Inc.
PDCE
| $83K | ﹤0.01% |
1,143
-160
| -12% | -$9.9K |
|
|
WBT
6415
CALL
DELISTED
Welbilt, Inc.
WBT
| $83K | ﹤0.01% |
3,500
-25,800
| -88% | -$613K |
|
|
MIC
6416
CALL
DELISTED
Macquarie Infrastructure Holdings, LLC
MIC
| $83K | ﹤0.01% |
22,300
+12,700
| +132% | +$46.5K |
|
6417
CALL
Arcos Dorados Holdings
ARCO
$1.72B
| $82K | ﹤0.01% |
10,200
+9,200
| +920% | +$63.5K |
|
6418
Armstrong World Industries
AWI
$7.38B
| $82K | ﹤0.01% |
+917
| New | +$88.8K |
|
6419
Amplify Lithium & Battery Technology ETF
BATT
$115M
| $82K | ﹤0.01% |
4,795
-1,138
| -19% | -$19K |
|
6420
PUT
Capricor Therapeutics
CAPR
$223M
| $82K | ﹤0.01% |
24,000
-19,800
| -45% | -$78.1K |
|
6421
CALL
CNA Financial
CNA
$14.2B
| $82K | ﹤0.01% |
1,700
+300
| +21% | +$14K |
|
6422
Crescent Energy
CRGY
$3.79B
| $82K | ﹤0.01% |
4,755
-4,346
| -48% | -$64.3K |
|
|
DEA
6423
Easterly Government Properties
DEA
$1.13B
| $82K | ﹤0.01% |
+1,565
| New | +$83.1K |
|
|
DNB
6424
CALL
DELISTED
Dun & Bradstreet
DNB
| $82K | ﹤0.01% |
4,700
-205,500
| -98% | -$3.82M |
|
6425
CALL
Essent Group
ESNT
$6.08B
| $82K | ﹤0.01% |
2,000
-17,500
| -90% | -$779K |
|
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.