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 | |
|---|---|---|---|---|---|---|
201
CALL
UnitedHealth
UNH
$393B
| $77.1M | 0.07% |
151,200
+17,600
| +13% | +$8.49M |
|
202
PUT
American Express
AXP
$238B
| $76.9M | 0.07% |
411,200
+11,200
| +3% | +$2.02M |
|
203
CALL
Oracle
ORCL
$363B
| $76.1M | 0.07% |
919,800
-171,300
| -16% | -$13.9M |
|
|
PARA
204
CALL
DELISTED
Paramount Global Class B
PARA
| $75.6M | 0.07% |
1,999,700
-284,500
| -12% | -$9.69M |
|
205
CALL
Thermo Fisher Scientific
TMO
$194B
| $75.1M | 0.07% |
127,200
+66,700
| +110% | +$38.3M |
|
206
CALL
S&P Global
SPGI
$127B
| $74.7M | 0.07% |
182,000
+170,500
| +1,483% | +$69.4M |
|
207
CALL
CrowdStrike
CRWD
$191B
| $74.3M | 0.07% |
1,308,000
+761,600
| +139% | +$35.5M |
|
208
PUT
Sea Limited
SE
$64.9B
| $72.2M | 0.07% |
602,900
+138,800
| +30% | +$19.6M |
|
209
CALL
Freeport-McMoran
FCX
$93.4B
| $71.7M | 0.07% |
1,442,200
-539,200
| -27% | -$23.9M |
|
210
CALL
Proshares UltraShort Technology
REW
$3.27M
| $71.5M | 0.07% |
275,763
+95,150
| +53% | +$12.3M |
|
211
CALL
Marvell Technology
MRVL
$192B
| $71.4M | 0.07% |
995,200
+258,400
| +35% | +$18.6M |
|
212
PUT
CVS Health
CVS
$140B
| $70.3M | 0.06% |
694,700
-197,500
| -22% | -$20.7M |
|
213
CALL
Union Pacific
UNP
$174B
| $69.9M | 0.06% |
256,000
+115,400
| +82% | +$29.1M |
|
214
CALL
Palantir
PLTR
$304B
| $69.9M | 0.06% |
5,087,600
-307,400
| -6% | -$4.1M |
|
215
PUT
Royal Caribbean
RCL
$77.1B
| $69.6M | 0.06% |
830,800
+109,200
| +15% | +$8.6M |
|
216
CALL
Chipotle Mexican Grill
CMG
$42.1B
| $69.5M | 0.06% |
2,195,000
-3,400,000
| -61% | -$102M |
|
217
PUT
JD.com
JD
$40.8B
| $69.3M | 0.06% |
1,197,800
+186,300
| +18% | +$12.7M |
|
218
PUT
Johnson & Johnson
JNJ
$616B
| $69M | 0.06% |
389,400
-94,400
| -20% | -$16.1M |
|
219
PUT
Delta Air Lines
DAL
$55.5B
| $68.3M | 0.06% |
1,725,800
+130,500
| +8% | +$5.08M |
|
220
PUT
Palo Alto Networks
PANW
$273B
| $68M | 0.06% |
655,800
+193,800
| +42% | +$17.3M |
|
|
DOCU
221
CALL
DocuSign
DOCU
$9.17B
| $67.9M | 0.06% |
633,600
+107,600
| +20% | +$12.3M |
|
222
PUT
Merck
MRK
$317B
| $67.8M | 0.06% |
1,058,700
-31,500
| -3% | -$2.48M |
|
223
CALL
Carnival Corporation Ltd
CCL
$36B
| $67.7M | 0.06% |
3,349,100
-1,039,700
| -24% | -$21M |
|
224
CALL
Vanguard S&P 500 ETF
VOO
$982B
| $67.7M | 0.06% |
244,400
-72,200
| -23% | -$29.6M |
|
225
PUT
NIO
NIO
$11.7B
| $67.1M | 0.06% |
3,189,200
-603,400
| -16% | -$14.2M |
|
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.