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 | Miscellaneous | 97.72% |
| 2 | Technology | 0.67% |
| 3 | Consumer Discretionary | 0.38% |
| 4 | Industrials | 0.24% |
| 5 | Healthcare | 0.22% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
226
PUT
Carnival Corporation Ltd
CCL
$32.2B
| $67.1M | 0.06% |
3,320,000
-1,392,000
| -30% | -$28.1M |
|
227
PUT
Alcoa
AA
$13.2B
| $66.9M | 0.06% |
742,700
+52,700
| +8% | +$3.83M |
|
228
CALL
Newmont
NEM
$135B
| $66M | 0.06% |
830,800
+387,700
| +87% | +$26.2M |
|
229
PUT
S&P Global
SPGI
$131B
| $65.7M | 0.06% |
160,200
+121,700
| +316% | +$49.6M |
|
230
PUT
Lam Research
LRCX
$385B
| $65.6M | 0.06% |
1,221,000
+36,000
| +3% | +$2.1M |
|
231
PUT
Direxion Daily Technology Bull 3x ETF
TECL
$5.92B
| $65M | 0.06% |
1,812,500
+633,000
| +54% | +$39.1M |
|
232
CALL
Lowe's Companies
LOW
$115B
| $64.9M | 0.06% |
321,200
+48,000
| +18% | +$11M |
|
233
PUT
Roblox
RBLX
$30.9B
| $64.5M | 0.06% |
1,395,000
+733,200
| +111% | +$44.2M |
|
234
PUT
Wynn Resorts
WYNN
$9.43B
| $64.5M | 0.06% |
808,600
+300,900
| +59% | +$25.4M |
|
235
PUT
Twilio
TWLO
$35.8B
| $64.5M | 0.06% |
391,200
+159,300
| +69% | +$29M |
|
236
CALL
Upstart Holdings
UPST
$2.73B
| $64.2M | 0.06% |
588,900
+259,600
| +79% | +$29.9M |
|
237
PUT
Plug Power
PLUG
$3.03B
| $63.2M | 0.06% |
2,208,000
+578,900
| +36% | +$13.8M |
|
|
PARA
238
PUT
DELISTED
Paramount Global Class B
PARA
| $63M | 0.06% |
1,667,100
-154,300
| -8% | -$5.26M |
|
239
PUT
Oracle
ORCL
$457B
| $62.8M | 0.06% |
759,300
-411,000
| -35% | -$33.3M |
|
240
CALL
Teladoc Health
TDOC
$1.14B
| $62.8M | 0.06% |
870,300
-5,500
| -0.6% | -$396K |
|
241
PUT
iPath Series B S&P 500 VIX Short-Term Futures ETN
VXX
$128M
| $62.4M | 0.06% |
151,869
+26,406
| +21% | +$9.72M |
|
|
242
PUT
Newmont
NEM
$135B
| $62.4M | 0.06% |
785,700
+85,700
| +12% | +$5.8M |
|
243
CALL
lululemon athletica
LULU
$11.1B
| $61.5M | 0.06% |
168,400
+81,100
| +93% | +$26.4M |
|
244
CALL
BP
BP
$113B
| $61.3M | 0.06% |
2,084,500
+842,600
| +68% | +$25.7M |
|
245
PUT
Cleveland-Cliffs
CLF
$7.13B
| $60.7M | 0.06% |
1,883,400
+383,800
| +26% | +$8.75M |
|
246
CALL
Baidu
BIDU
$33.7B
| $60.5M | 0.06% |
457,500
-194,700
| -30% | -$29.4M |
|
247
CALL
Gilead Sciences
GILD
$187B
| $60.5M | 0.06% |
1,017,900
+247,200
| +32% | +$15.8M |
|
248
CALL
Applied Materials
AMAT
$361B
| $60.3M | 0.06% |
457,500
-30,600
| -6% | -$4.21M |
|
249
CALL
VanEck Durable High Dividend ETF
DURA
$38.6M
| $60M | 0.05% |
223,700
-166,000
| -43% | -$5.29M |
|
250
PUT
DoorDash
DASH
$91.7B
| $59.9M | 0.05% |
510,900
+304,700
| +148% | +$33M |
|
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's Q1 2022 filing shows 1,600 new, 4,440 increased, 4,085 reduced and 1,638 closed positions. Its largest new stake was iShares 20+ Year Treasury Bond ETF: 652,921 shares worth $86.2M. The largest sale was State Street Financial Select Sector SPDR ETF, an estimated $42.8M.
By sector, the portfolio is most concentrated in Miscellaneous at 98% of assets, up from 97% a quarter earlier, followed by Technology and Consumer Discretionary.
- 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 1,600 new positions and closed 1,638 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.