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 | |
|---|---|---|---|---|---|---|
3201
CALL
Jazz Pharmaceuticals
JAZZ
$15.9B
| $793K | ﹤0.01% |
5,100
-2,400
| -32% | -$348K |
|
3202
CALL
Children's Place
PLCE
$53.6M
| $793K | ﹤0.01% |
16,100
+2,600
| +19% | +$165K |
|
|
FFAI
3203
PUT
Faraday Future Intelligent Electric
FFAI
$15.8M
| – | – |
0
| – | – |
|
3204
PUT
Nexstar Media Group
NXST
$5.6B
| $791K | ﹤0.01% |
4,200
-6,400
| -60% | -$1.11M |
|
|
RWT
3205
Redwood Trust
RWT
$616M
| $791K | ﹤0.01% |
75,171
+44,580
| +146% | +$507K |
|
3206
CALL
Sphere Entertainment
SPHR
$4.88B
| $791K | ﹤0.01% |
9,500
+2,000
| +27% | +$151K |
|
|
LONA
3207
LeonaBio Inc
LONA
$69.4M
| $790K | ﹤0.01% |
5,853
-1,384
| -19% | -$146K |
|
|
PCH
3208
CALL
DELISTED
PotlatchDeltic
PCH
| $790K | ﹤0.01% |
15,000
+9,100
| +154% | +$497K |
|
3209
CALL
Safety Insurance
SAFT
$1.52B
| $790K | ﹤0.01% |
8,700
+8,000
| +1,143% | +$683K |
|
3210
CALL
The GEO Group
GEO
$4.13B
| $789K | ﹤0.01% |
119,500
-19,100
| -14% | -$125K |
|
3211
PUT
Opko Health
OPK
$921M
| $789K | ﹤0.01% |
229,600
+75,100
| +49% | +$265K |
|
3212
PUT
Toll Brothers
TOL
$14B
| $789K | ﹤0.01% |
16,800
-85,000
| -83% | -$4.76M |
|
3213
PUT
B&G Foods
BGS
$285M
| $787K | ﹤0.01% |
29,200
+10,600
| +57% | +$319K |
|
3214
CALL
Comtech Telecommunications
CMTL
$51.8M
| $787K | ﹤0.01% |
50,200
-1,300
| -3% | -$25.6K |
|
|
AGNT
3215
CALL
AGNT Inc
AGNT
$665M
| $787K | ﹤0.01% |
37,200
-20,000
| -35% | -$524K |
|
3216
Direxion Daily Junior Gold Miners Index Bear 2X ETF
JDST
$30.4M
| $787K | ﹤0.01% |
511
-404
| -44% | -$799K |
|
|
POSH
3217
PUT
DELISTED
Poshmark, Inc. Class A Common Stock
POSH
| $787K | ﹤0.01% |
62,200
+7,900
| +15% | +$114K |
|
3218
CALL
Sportsman's Warehouse
SPWH
$43.7M
| $786K | ﹤0.01% |
73,600
+40,200
| +120% | +$450K |
|
3219
PUT
ACI Worldwide
ACIW
$5.72B
| $784K | ﹤0.01% |
24,900
-900
| -3% | -$30K |
|
3220
State Street SPDR EURO STOXX 50 ETF
FEZ
$4.28B
| $784K | ﹤0.01% |
+19,059
| New | +$828K |
|
|
GRFS
3221
Grifois
GRFS
$5.16B
| $784K | ﹤0.01% |
67,190
+54,994
| +451% | +$633K |
|
3222
Lightspeed Commerce
LSPD
$1.3B
| $784K | ﹤0.01% |
25,739
+23,939
| +1,330% | +$713K |
|
3223
YPF
YPF
$20.2B
| $784K | ﹤0.01% |
162,349
+66,053
| +69% | +$284K |
|
3224
PUT
Vanguard Total Bond Market
BND
$157B
| $783K | ﹤0.01% |
9,900
+7,000
| +241% | +$572K |
|
3225
PUT
Upwork
UPWK
$1.09B
| $783K | ﹤0.01% |
33,700
+32,300
| +2,307% | +$808K |
|
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.