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 | |
|---|---|---|---|---|---|---|
51
CALL
AT&T
T
$155B
| $231M | 0.21% |
12,942,630
+3,797,894
| +42% | +$70.3M |
|
|
XYZ
52
CALL
Block Inc
XYZ
$47.8B
| $226M | 0.21% |
1,666,900
+657,100
| +65% | +$79.6M |
|
53
CALL
GameStop
GME
$9.78B
| $226M | 0.21% |
5,425,200
+4,121,200
| +316% | +$122M |
|
54
PUT
ExxonMobil
XOM
$629B
| $225M | 0.21% |
2,722,900
+286,700
| +12% | +$22.3M |
|
55
PUT
JPMorgan Chase
JPM
$918B
| $224M | 0.2% |
1,652,100
-172,300
| -9% | -$25.4M |
|
56
CALL
Intel
INTC
$530B
| $224M | 0.2% |
4,515,100
+777,200
| +21% | +$38.5M |
|
57
CALL
Micron Technology
MU
$1.1T
| $212M | 0.19% |
2,715,700
+487,100
| +22% | +$41.5M |
|
58
PUT
Broadcom
AVGO
$1.84T
| $210M | 0.19% |
3,331,000
-369,000
| -10% | -$21.9M |
|
|
59
PUT
Micron Technology
MU
$1.1T
| $209M | 0.19% |
2,682,100
-405,900
| -13% | -$34.6M |
|
60
PUT
Citigroup
C
$223B
| $206M | 0.19% |
3,851,700
+503,300
| +15% | +$31.1M |
|
61
PUT
Pfizer
PFE
$142B
| $205M | 0.19% |
4,187,800
+445,000
| +12% | +$23.1M |
|
62
CALL
Adobe
ADBE
$90.3B
| $204M | 0.19% |
447,000
+177,600
| +66% | +$85.4M |
|
|
63
PUT
Adobe
ADBE
$90.3B
| $200M | 0.18% |
439,900
-44,400
| -9% | -$21.4M |
|
64
CALL
Bank of America
BAC
$430B
| $194M | 0.18% |
4,708,100
+552,100
| +13% | +$24.9M |
|
|
65
Apple
AAPL
$4.81T
| $192M | 0.18% |
1,101,011
+1,063,111
| +2,805% | +$179M |
|
66
PUT
Visa
V
$677B
| $192M | 0.18% |
866,300
-40,800
| -4% | -$8.82M |
|
|
67
CALL
iShares Silver Trust
SLV
$28.4B
| $190M | 0.17% |
8,283,000
-170,100
| -2% | -$3.78M |
|
68
PUT
Salesforce
CRM
$139B
| $186M | 0.17% |
876,900
-284,100
| -24% | -$61.1M |
|
|
69
CALL
Salesforce
CRM
$139B
| $186M | 0.17% |
876,200
-92,600
| -10% | -$19.9M |
|
|
70
CALL
Citigroup
C
$223B
| $185M | 0.17% |
3,473,400
-778,500
| -18% | -$48.1M |
|
71
PUT
Mastercard
MA
$476B
| $184M | 0.17% |
513,800
+92,800
| +22% | +$33.4M |
|
72
CALL
State Street SPDR Dow Jones Industrial Average ETF Trust
DIA
$46B
| $181M | 0.17% |
522,000
-172,200
| -25% | -$59.7M |
|
|
73
PUT
Bank of America
BAC
$430B
| $179M | 0.16% |
4,332,600
-456,900
| -10% | -$20.6M |
|
74
PUT
Qualcomm
QCOM
$183B
| $178M | 0.16% |
1,166,000
-356,100
| -23% | -$59.7M |
|
|
75
CALL
Visa
V
$677B
| $178M | 0.16% |
803,400
-277,000
| -26% | -$59.9M |
|
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.