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 | |
|---|---|---|---|---|---|---|
1576
CALL
GoodRx Holdings
GDRX
$1.19B
| $3.44M | ﹤0.01% |
178,200
+111,200
| +166% | +$2.55M |
|
1577
Apollo Global Management
APO
$78.9B
| $3.43M | ﹤0.01% |
+55,284
| New | +$3.64M |
|
1578
PUT
Healthcare Realty
HR
$6.55B
| $3.42M | ﹤0.01% |
109,200
+101,800
| +1,376% | +$3.21M |
|
1579
Kroger
KR
$35.9B
| $3.42M | ﹤0.01% |
+59,623
| New | +$2.96M |
|
1580
Consolidated Edison
ED
$39.7B
| $3.42M | ﹤0.01% |
36,089
+22,676
| +169% | +$1.96M |
|
|
TRTN
1581
DELISTED
Triton International Limited
TRTN
| $3.42M | ﹤0.01% |
+48,682
| New | +$3.15M |
|
|
MRSH
1582
CALL
Marsh
MRSH
$88.6B
| $3.41M | ﹤0.01% |
20,000
-1,200
| -6% | -$189K |
|
|
AUY
1583
PUT
DELISTED
Yamana Gold, Inc.
AUY
| $3.41M | ﹤0.01% |
610,700
-172,600
| -22% | -$816K |
|
1584
CALL
Polaris
PII
$3.56B
| $3.4M | ﹤0.01% |
32,300
+30,600
| +1,800% | +$3.49M |
|
1585
CALL
Ambarella
AMBA
$2.78B
| $3.4M | ﹤0.01% |
32,400
+3,200
| +11% | +$408K |
|
1586
Box
BOX
$4.83B
| $3.4M | ﹤0.01% |
116,911
+37,266
| +47% | +$980K |
|
1587
CALL
Quest Diagnostics
DGX
$26.2B
| $3.39M | ﹤0.01% |
24,800
-17,100
| -41% | -$2.38M |
|
1588
CALL
Marqeta
MQ
$1.73B
| $3.39M | ﹤0.01% |
76,825
+43,250
| +129% | +$2.01M |
|
|
BIG
1589
CALL
DELISTED
Big Lots, Inc.
BIG
| $3.39M | ﹤0.01% |
98,000
+86,700
| +767% | +$3.41M |
|
|
IAA
1590
PUT
DELISTED
IAA, Inc. Common Stock
IAA
| $3.38M | ﹤0.01% |
88,500
-9,300
| -10% | -$382K |
|
1591
PUT
Shift4
FOUR
$3.63B
| $3.38M | ﹤0.01% |
54,600
+13,400
| +33% | +$707K |
|
1592
CALL
Southern Copper
SCCO
$168B
| $3.38M | ﹤0.01% |
48,579
+23,798
| +96% | +$1.51M |
|
1593
CALL
Kulicke & Soffa
KLIC
$4.27B
| $3.37M | ﹤0.01% |
60,200
+30,500
| +103% | +$1.68M |
|
1594
CALL
Unilever
UL
$138B
| $3.37M | ﹤0.01% |
65,689
+20,978
| +47% | +$1.17M |
|
1595
CALL
RingCentral
RNG
$6.13B
| $3.36M | ﹤0.01% |
28,700
-18,300
| -39% | -$2.69M |
|
1596
Global X Uranium ETF
URA
$6.45B
| $3.36M | ﹤0.01% |
128,575
+12,036
| +10% | +$279K |
|
1597
CALL
Ralph Lauren
RL
$20.9B
| $3.36M | ﹤0.01% |
29,600
+10,600
| +56% | +$1.25M |
|
|
ITCI
1598
CALL
DELISTED
Intra-Cellular Therapies Inc.
ITCI
| $3.34M | ﹤0.01% |
54,600
-14,300
| -21% | -$743K |
|
1599
Howmet Aerospace
HWM
$103B
| $3.34M | ﹤0.01% |
92,906
+31,119
| +50% | +$1.06M |
|
1600
CALL
American Express Global Business Travel
GBTG
$4.95B
| $3.33M | ﹤0.01% |
335,200
+329,000
| +5,306% | +$3.26M |
|
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.