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 | |
|---|---|---|---|---|---|---|
551
CALL
ON Semiconductor
ON
$35.9B
| $19.7M | 0.02% |
314,600
+24,100
| +8% | +$1.47M |
|
552
CALL
Coupang
CPNG
$28.1B
| $19.7M | 0.02% |
1,111,700
+443,700
| +66% | +$9.48M |
|
553
CALL
CarMax
KMX
$8.15B
| $19.4M | 0.02% |
201,100
+67,500
| +51% | +$7.26M |
|
554
CALL
Agnico Eagle Mines
AEM
$73.5B
| $19.3M | 0.02% |
314,800
+198,600
| +171% | +$10.7M |
|
555
CALL
US Bancorp Series B Preferred Stock
USB.PRH
$747M
| $19.3M | 0.02% |
362,500
+59,900
| +20% | +$1.31M |
|
556
Caterpillar
CAT
$410B
| $19.2M | 0.02% |
+86,290
| New | +$18.1M |
|
557
Target
TGT
$62.6B
| $19.2M | 0.02% |
90,594
+71,736
| +380% | +$15.5M |
|
558
CALL
Live Nation Entertainment
LYV
$41.4B
| $19.2M | 0.02% |
163,000
-66,000
| -29% | -$7.53M |
|
559
PUT
M&T Bank
MTB
$36.3B
| $19.1M | 0.02% |
112,800
+85,600
| +315% | +$15.1M |
|
560
iShares US Real Estate ETF
IYR
$4.5B
| $19.1M | 0.02% |
+176,539
| New | +$18.6M |
|
561
PUT
Medtronic
MDT
$105B
| $19.1M | 0.02% |
172,200
-174,600
| -50% | -$18.4M |
|
562
Vanguard Total Stock Market ETF
VTI
$661B
| $19M | 0.02% |
83,580
+68,119
| +441% | +$15.3M |
|
563
CALL
Prologis
PLD
$135B
| $18.9M | 0.02% |
117,300
+81,500
| +228% | +$12.4M |
|
564
PUT
Five Below
FIVE
$11.3B
| $18.9M | 0.02% |
119,100
+103,900
| +684% | +$17.3M |
|
565
CALL
Dow Inc
DOW
$22.5B
| $18.8M | 0.02% |
349,800
+32,700
| +10% | +$1.97M |
|
|
WBA
566
CALL
DELISTED
Walgreens Boots Alliance
WBA
| $18.8M | 0.02% |
420,000
+82,000
| +24% | +$4.03M |
|
567
CALL
Honeywell
HON
$73.8B
| $18.7M | 0.02% |
101,962
-20,053
| -16% | -$3.71M |
|
568
PUT
AstraZeneca
AZN
$263B
| $18.7M | 0.02% |
140,750
-42,500
| -23% | -$5.1M |
|
569
CALL
General Dynamics
GD
$101B
| $18.4M | 0.02% |
76,400
+14,600
| +24% | +$3.24M |
|
570
PUT
NXP Semiconductors
NXPI
$70.4B
| $18.4M | 0.02% |
99,500
+41,000
| +70% | +$8.08M |
|
571
PUT
BILL Holdings
BILL
$4.17B
| $18.3M | 0.02% |
80,500
+28,900
| +56% | +$6.03M |
|
572
Mastercard
MA
$470B
| $18.2M | 0.02% |
51,041
+35,675
| +232% | +$12.8M |
|
573
CALL
Vertex Pharmaceuticals
VRTX
$120B
| $18.1M | 0.02% |
69,500
+3,400
| +5% | +$807K |
|
574
CALL
Lennar Class A
LEN
$19.8B
| $18.1M | 0.02% |
230,566
-19,833
| -8% | -$1.79M |
|
575
PUT
Best Buy
BBY
$18.4B
| $18.1M | 0.02% |
199,300
-138,300
| -41% | -$13.7M |
|
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.