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 | |
|---|---|---|---|---|---|---|
1201
PUT
KB Home
KBH
$3.41B
| $5.3M | ﹤0.01% |
163,800
-61,700
| -27% | -$2.43M |
|
|
BGFV
1202
DELISTED
Big 5 Sporting Goods
BGFV
| $5.28M | ﹤0.01% |
+307,991
| New | +$5.49M |
|
1203
CALL
JetBlue
JBLU
$1.86B
| $5.28M | ﹤0.01% |
353,300
+87,800
| +33% | +$1.27M |
|
1204
PUT
Sempra
SRE
$61.1B
| $5.28M | ﹤0.01% |
62,800
+58,800
| +1,470% | +$4.23M |
|
1205
CALL
Aon
AON
$76B
| $5.28M | ﹤0.01% |
16,200
+1,400
| +9% | +$407K |
|
1206
PUT
Royal Bank of Canada
RY
$290B
| $5.27M | ﹤0.01% |
47,800
+1,500
| +3% | +$168K |
|
|
LAC
1207
PUT
DELISTED
Lithium Americas Corp. Common Shares
LAC
| $5.26M | ﹤0.01% |
136,800
+36,400
| +36% | +$1.04M |
|
1208
West Pharmaceutical
WST
$25B
| $5.26M | ﹤0.01% |
12,815
-1,232
| -9% | -$482K |
|
1209
PUT
Lithia Motors
LAD
$7.62B
| $5.25M | ﹤0.01% |
17,500
-7,400
| -30% | -$2.31M |
|
1210
MetLife
MET
$59.5B
| $5.24M | ﹤0.01% |
74,598
-39,721
| -35% | -$2.69M |
|
1211
PUT
Shake Shack
SHAK
$2.26B
| $5.24M | ﹤0.01% |
77,100
+46,400
| +151% | +$3.19M |
|
|
CTXS
1212
CALL
DELISTED
Citrix Systems Inc
CTXS
| $5.21M | ﹤0.01% |
51,600
-313,400
| -86% | -$31.7M |
|
1213
CALL
Group 1 Automotive
GPI
$3.89B
| $5.2M | ﹤0.01% |
31,000
+28,200
| +1,007% | +$5.13M |
|
|
ARNC
1214
CALL
DELISTED
Arconic Corporation
ARNC
| $5.2M | ﹤0.01% |
202,800
+164,400
| +428% | +$4.89M |
|
1215
PUT
Lattice Semiconductor
LSCC
$18.9B
| $5.18M | ﹤0.01% |
85,000
+69,900
| +463% | +$4.19M |
|
1216
PUT
Opendoor
OPEN
$3.71B
| $5.17M | ﹤0.01% |
617,933
-77,397
| -11% | -$720K |
|
1217
CALL
NRG Energy
NRG
$30.2B
| $5.17M | ﹤0.01% |
134,700
+1,500
| +1% | +$58.5K |
|
|
OSH
1218
PUT
DELISTED
Oak Street Health, Inc.
OSH
| $5.16M | ﹤0.01% |
191,900
+139,900
| +269% | +$2.95M |
|
1219
CALL
Viatris
VTRS
$20.1B
| $5.16M | ﹤0.01% |
473,900
+266,000
| +128% | +$3.5M |
|
1220
CALL
Otis Worldwide
OTIS
$27.2B
| $5.16M | ﹤0.01% |
67,000
+24,300
| +57% | +$1.94M |
|
1221
PUT
Gartner
IT
$8.95B
| $5.15M | ﹤0.01% |
17,300
+12,800
| +284% | +$3.71M |
|
|
CYBR
1222
CALL
DELISTED
CyberArk
CYBR
| $5.13M | ﹤0.01% |
30,400
+20,300
| +201% | +$3.08M |
|
|
PXD
1223
DELISTED
Pioneer Natural Resource Co.
PXD
| $5.13M | ﹤0.01% |
20,499
-3,526
| -15% | -$797K |
|
|
DQ
1224
PUT
Daqo New Energy
DQ
$806M
| $5.12M | ﹤0.01% |
123,900
-100
| -0.1% | -$4.2K |
|
|
TRQ
1225
CALL
DELISTED
Turquoise Hill Resources Ltd
TRQ
| $5.12M | ﹤0.01% |
170,400
-61,300
| -26% | -$1.28M |
|
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.