Simplex Trading, LLC

In its 13F for Q2 2025 (holdings as of June 30, 2025, filed August 5, 2025), Simplex Trading, LLC reported 2,428 stock positions worth $3.7 billion. Its top holding was Nvidia (NVDA) at 10.6% of the portfolio, followed by Apple (AAPL, 5.6%) and Broadcom (AVGO, 4.1%). Compared with Q1 2025, it opened 897 new positions, sold out of 871, added to 804 and reduced 719. The biggest buy was Nvidia (NVDA, shares +123%) and the biggest sale iShares 20+ Year Treasury BD (TLT, shares −52%).

Most Recent 13F
Q2 2026
Location
CHICAGO, IL
CIK
0001488542
Portfolio Value
$3.7B (Q2 2025)
SEC Filing
0001488542-25-000010 ↗ filed Aug 5, 2025

Holdings Value

0$1.0B$2.0B$3.0B$4.0B$5.0B Q1 2024: $3.4B Q1 2024 Q2 2024: $3.1B Q2 2024 Q3 2024: $3.0B Q3 2024 Q4 2024: $3.5B Q4 2024 Q1 2025: $2.8B Q1 2025 Q2 2025: $3.7B $3.7B Q2 2025 Q3 2025: $4.5B Q3 2025 Q4 2025: $3.6B Q4 2025 Q1 2026: $3.2B Q1 2026 Q2 2026: $3.8B Q2 2026

Holdings 2,428 stocks · $3.7B

NVDA Nvidia Corp. 10.55% 2,481,314 $392.0M Add +122.9%
AAPL Apple Inc. 5.64% 1,021,727 $209.6M Add +310.7%
AVGO Broadcom Inc. 4.09% 551,694 $152.1M Add +535.3%
TLT iShares 20+ Year Treasury BD 3.46% 1,457,996 $128.7M Reduce -52.3%
GOOGL Alphabet Inc. Class A 3.39% 714,528 $125.9M Add +30.9%
BKNG Booking Holdings Inc. 2.11% 13,563 $78.5M Add +379.8%
MU Micron Technology Inc. 2.04% 616,179 $75.9M Reduce -5.8%
GOOG Alphabet Inc. Class C 1.71% 357,870 $63.5M Add +378.3%
TSM Taiwan Semiconductor-SP ADR 1.70% 278,926 $63.2M Reduce -42.0%
SPY SS SPDR S&P 500 ETF Trust-US 1.67% 100,129 $61.9M New
META Meta Platforms Inc. Class A 1.58% 79,568 $58.7M New
UNH Unitedhealth Group Inc. 1.51% 180,167 $56.2M Add +399.6%
INTC Intel Corp. 1.47% 2,441,452 $54.7M Reduce -27.8%
AMD Advanced Micro Devices 1.31% 342,008 $48.5M New
XLV SS Health Care Select Sector 1.21% 333,580 $45.0M Add +1115.2%
IWM iShares Russell 2000 ETF 1.12% 192,597 $41.6M New
NKE Nike Inc. Class B 1.00% 522,792 $37.1M Reduce -2.7%
BABA Alibaba Group Holding-SP ADR 0.96% 314,372 $35.7M New
HOOD Robinhood Markets Inc. Class A 0.76% 301,109 $28.2M Add +203.0%
EWZ iShares MSCI Brazil ETF 0.74% 955,457 $27.6M Add +1006.5%
GLD SPDR Gold Shares 0.71% 85,931 $26.2M New
CI The Cigna Group 0.68% 76,861 $25.4M Reduce -1.8%
SOFI Sofi Technologies Inc. 0.68% 1,380,363 $25.1M Add +28.5%
XLF SS Financial Select Sector 0.64% 453,315 $23.7M New
KWEB Kranesh Csi China Internet 0.60% 645,901 $22.2M Reduce -0.7%
WFC Wells Fargo & Co. 0.57% 265,915 $21.3M Add +17.1%
NVO Novo-Nordisk A/S-Spons ADR 0.57% 305,237 $21.1M Add +27.7%
B Barrick Mining Corp. 0.57% 1,011,038 $21.0M Reduce -18.2%
IREN Iren Ltd. filed as IREN LIMITED 0.54% 1,382,126 $20.1M Add +7.3%
WMT Walmart Inc. 0.53% 202,277 $19.8M Add +243.9%
ORCL Oracle Corp. 0.52% 88,074 $19.3M New
ET Energy Transfer LP 0.51% 1,051,640 $19.1M Reduce -0.4%
CMG Chipotle Mexican Grill Inc. 0.50% 333,998 $18.8M New
IBIT iShares Bitcoin Trust ETF 0.48% 289,568 $17.7M Reduce -42.4%
FAS Dirx DLY Finacial B3X ETF-Ui 0.47% 104,672 $17.6M Add +28.2%
NU Nu Holdings Ltd./Cayman Isl-A filed as NU HLDGS LTD 0.46% 1,246,517 $17.1M Add +183.3%
ASML ASML Holding NV-NY Reg SHS 0.45% 21,017 $16.8M New
EEM iShares MSCI Emerging Market 0.40% 306,415 $14.8M Add +86.9%
USB US Bancorp 0.39% 319,512 $14.5M New
XLI SS Industrial Select Sector 0.39% 97,333 $14.4M New
IAU iShares Gold Trust 0.35% 210,513 $13.1M Add +32.9%
SOUN Soundhound AI Inc. Class A 0.35% 1,215,270 $13.0M Add +255.3%
PSQ Proshares Short QQQ 0.35% 385,908 $13.0M Reduce -22.1%
SOXL Direx Dail Semi Bu 3X Et-Usd 0.35% 515,960 $13.0M Reduce -41.5%
BSX Boston Scientific Corp. 0.34% 118,658 $12.7M Add +45.3%
COIN Coinbase Global Inc. Class A 0.34% 36,126 $12.7M Reduce -58.7%
ITB iShares U.S. Home Constructi 0.34% 134,719 $12.6M New
PEP Pepsico Inc. 0.34% 94,468 $12.5M New
RIO Rio Tinto PLC-Spon ADR 0.33% 207,861 $12.1M Add +37.5%
URA Global X Uranium ETF 0.32% 304,577 $11.8M Add +70.1%
NEM Newmont Corp. 0.31% 196,522 $11.4M Reduce -40.2%
PCG P G & E Corp. 0.30% 799,868 $11.2M New
ASTS Ast Spacemobile Inc. 0.29% 233,885 $10.9M Reduce -24.3%
HUM Humana Inc. 0.29% 44,637 $10.9M Reduce -27.6%
TGT Target Corp. 0.29% 109,894 $10.8M Add +40.7%
SLB SLB Ltd. filed as SCHLUMBERGER LTD 0.29% 318,601 $10.8M Add +22.5%
BIDU Baidu Inc. - Spon ADR 0.29% 124,357 $10.7M Reduce -62.2%
MRNA Moderna Inc. 0.28% 381,787 $10.5M Add +99.7%
MELI MercadoLibre Inc. 0.28% 4,010 $10.5M Add +5.6%
C Citigroup Inc. 0.28% 123,006 $10.5M Reduce -76.3%
MRVL Marvell Technology Inc. 0.27% 128,883 $10.0M New
ADBE Adobe Inc. 0.27% 25,630 $9.9M New
TSLL Dirx DLY Tsla Bul 2X ETF-Aui 0.26% 816,632 $9.6M Add +199.8%
AAL American Airlines Group Inc. 0.26% 851,320 $9.6M Add +78.0%
DAL Delta Air Lines Inc. 0.25% 190,017 $9.3M New
CCI Crown Castle Inc. 0.25% 90,620 $9.3M Add +44.9%
NRG NRG Energy Inc. 0.25% 57,955 $9.3M Add +36.8%
AMZN Amazon.com Inc. 0.23% 38,978 $8.6M Reduce -86.1%
NEE Nextera Energy Inc. 0.23% 120,670 $8.4M Add +385.3%
QCOM Qualcomm Inc. 0.22% 50,398 $8.0M New
DELL Dell Technologies -C 0.21% 64,474 $7.9M Reduce -74.6%
CNC Centene Corp. 0.21% 141,894 $7.7M Add +2315.6%
KVUE Kenvue Inc. 0.21% 366,113 $7.7M Add +107.3%
XLB SS Materials Select Sector 0.21% 86,906 $7.6M Add +20.8%
TDG Transdigm Group Inc. 0.20% 4,966 $7.6M Add +1902.4%
WDAY Workday Inc. Class A 0.20% 31,359 $7.5M New
NET Cloudflare Inc. Class A 0.20% 38,235 $7.5M New
VRT Vertiv Holdings Co. Class A 0.19% 56,103 $7.2M New
ARKB ARK 21SHARES Bitcoin ETF 0.19% 200,964 $7.2M Add +10.1%
BPMC Blueprint Medicines Corp. 0.19% 55,989 $7.2M Add +1090.2%
AZN Astrazeneca PLC-Spons ADR 0.19% 101,293 $7.1M New
LULU Lululemon Athletica Inc. 0.19% 29,788 $7.1M New
RSP Invesco S&P 500 Equal Weight 0.19% 38,899 $7.1M New
KO The Coca-Cola Co. 0.19% 99,795 $7.1M New
CHTR Charter Communications Inc. Class A 0.19% 17,111 $7.0M Add +172.0%
SNAP Snap Inc. Class A 0.18% 782,837 $6.8M Reduce -31.0%
JNJ Johnson & Johnson 0.18% 44,482 $6.8M New
ON On Semiconductor 0.18% 126,513 $6.6M Add +1225.0%
BILI Bilibili Inc.-Sponsored ADR 0.18% 307,199 $6.6M Add +538.8%
FBTC Fidelity Wise Origin Bitcoin 0.18% 69,771 $6.6M Reduce -41.4%
TMF Dir DLY 20+YR TR BL3X ETF-Ui 0.18% 166,816 $6.5M New
MDLZ Mondelez International Inc. Class A 0.17% 93,519 $6.3M New
TKO Tko Group Holdings Inc. 0.17% 34,096 $6.2M New
DG Dollar General Corp. 0.16% 52,823 $6.0M Reduce -35.8%
CORZ Core Scientific Inc. 0.16% 346,801 $5.9M Add +129.7%
AL Sumisho Air Lease Corp. filed as AIR LEASE CORP 0.16% 101,068 $5.9M Add +2136.0%
AES AES Corp. 0.16% 560,576 $5.9M Add +92.0%
MUB iShares National Muni Bond E 0.16% 56,446 $5.9M Reduce -27.6%
WBD Warner Bros Discovery Inc. 0.16% 511,945 $5.9M Reduce -52.9%
AAP Advance Auto Parts Inc. 0.16% 124,762 $5.8M Add +25.8%

Show all 2,428 holdings

Options reported separately and not counted above: STATE STR SPDR S&P 500 ETF T puts ($29.2B), STATE STR SPDR S&P 500 ETF T calls ($14.9B), INVESCO QQQ TR puts ($6.9B), ISHARES TR puts ($5.3B), TESLA INC puts ($5.0B), NVIDIA CORPORATION puts ($4.7B), TESLA INC calls ($4.5B), NVIDIA CORPORATION calls ($4.4B), INVESCO QQQ TR calls ($4.0B), ISHARES TR calls ($3.4B), NETFLIX INC. puts ($3.0B), META PLATFORMS INC calls ($2.6B), and 6427 more.

Portfolio Sells Q1 2025 → Q2 2025

TLT iShares 20+ Year Treasury BD Reduce -52.3% 3.46% −6.41
AMZN Amazon.com Inc. Reduce -86.1% 0.23% −1.67
PFE Pfizer Inc. Reduce -97.9% 0.02% −1.43
INTC Intel Corp. Reduce -27.8% 1.47% −1.25
TSM Taiwan Semiconductor-SP ADR Reduce -42.0% 1.70% −1.13
NFLX Netflix Inc. Reduce -96.4% 0.05% −1.12
TSLA Tesla Inc. Sold out 0.00% −1.08
C Citigroup Inc. Reduce -76.3% 0.28% −1.03
CEG Constellation Energy Sold out 0.00% −0.97
ARM Arm Holdings PLC-ADR Sold out 0.00% −0.96
CVS CVS Health Corp. Sold out 0.00% −0.80
BIDU Baidu Inc. - Spon ADR Reduce -62.2% 0.29% −0.79
XBI SS SPDR S&P Biotech ETF Sold out 0.00% −0.69
DELL Dell Technologies -C Reduce -74.6% 0.21% −0.61
MSFT Microsoft Corp. Sold out 0.00% −0.49
DIS The Walt Disney Co. Sold out 0.00% −0.43
PDD PDD Holdings Inc. Sold out 0.00% −0.41
BEKE Ke Holdings Inc.-ADR Sold out 0.00% −0.41
CVNA Carvana Co. Sold out 0.00% −0.40
DASH DoorDash Inc. Class A Reduce -88.5% 0.05% −0.38
UPS United Parcel Service Class B Sold out 0.00% −0.36
PSQ Proshares Short QQQ Reduce -22.1% 0.35% −0.36
XLK SS Technology Select Sector Reduce -97.1% 0.01% −0.36
IBIT iShares Bitcoin Trust ETF Reduce -42.4% 0.48% −0.36
HON Honeywell International Inc. Sold out 0.00% −0.35
GM General Motors Co. Sold out 0.00% −0.35
BX Blackstone Inc. Reduce -80.3% 0.07% −0.34
BMY Bristol-Myers Squibb Co. Reduce -65.8% 0.08% −0.33
F Ford Motor Co. Reduce -69.3% 0.11% −0.33
EIX Edison International Reduce -78.8% 0.05% −0.32
MSTR Strategy Inc. Sold out 0.00% −0.30
HD Home Depot Inc. Reduce -64.5% 0.11% −0.30
ALB Albemarle Corp. Sold out 0.00% −0.30
B Barrick Mining Corp. Reduce -18.2% 0.57% −0.29
HUM Humana Inc. Reduce -27.6% 0.29% −0.29
CCJ Cameco Corp. Sold out 0.00% −0.27
TFC Truist Financial Corp. Sold out 0.00% −0.27
JD Jd.com Inc.-ADR Reduce -56.9% 0.09% −0.26
WBD Warner Bros Discovery Inc. Reduce -52.9% 0.16% −0.26
NEM Newmont Corp. Reduce -40.2% 0.31% −0.25
MMM 3M Co. Reduce -89.4% 0.02% −0.25
FSLR First Solar Inc. Sold out 0.00% −0.25
ENPH Enphase Energy Inc. Reduce -83.0% 0.02% −0.24
PBR Petroleo Brasileiro-Spon ADR Reduce -96.8% 0.01% −0.24
NICE Nice Ltd. - Spon ADR Reduce -89.8% 0.02% −0.23
ASHR Xtrackers Harvest Csi 300 CH Sold out 0.00% −0.23
CI The Cigna Group Reduce -1.8% 0.68% −0.23
TWLO Twilio Inc. Class A Sold out 0.00% −0.23
XLP SS Consumer Staples Sel Sect Reduce -80.3% 0.04% −0.22
NKE Nike Inc. Class B Reduce -2.7% 1.00% −0.21

Portfolio Buys Q1 2025 → Q2 2025

NVDA Nvidia Corp. Add +122.9% 10.55% +6.27
AAPL Apple Inc. Add +310.7% 5.64% +3.68
AVGO Broadcom Inc. Add +535.3% 4.09% +3.58
SPY SS SPDR S&P 500 ETF Trust-US New 1.67% +1.67
BKNG Booking Holdings Inc. Add +379.8% 2.11% +1.65
META Meta Platforms Inc. Class A New 1.58% +1.58
AMD Advanced Micro Devices New 1.31% +1.31
GOOG Alphabet Inc. Class C Add +378.3% 1.71% +1.29
IWM iShares Russell 2000 ETF New 1.12% +1.12
XLV SS Health Care Select Sector Add +1115.2% 1.21% +1.07
BABA Alibaba Group Holding-SP ADR New 0.96% +0.96
UNH Unitedhealth Group Inc. Add +399.6% 1.51% +0.84
GLD SPDR Gold Shares New 0.71% +0.71
EWZ iShares MSCI Brazil ETF Add +1006.5% 0.74% +0.66
XLF SS Financial Select Sector New 0.64% +0.64
HOOD Robinhood Markets Inc. Class A Add +203.0% 0.76% +0.61
ORCL Oracle Corp. New 0.52% +0.52
CMG Chipotle Mexican Grill Inc. New 0.50% +0.50
ASML ASML Holding NV-NY Reg SHS New 0.45% +0.45
GOOGL Alphabet Inc. Class A Add +30.9% 3.39% +0.40
USB US Bancorp New 0.39% +0.39
XLI SS Industrial Select Sector New 0.39% +0.39
WMT Walmart Inc. Add +243.9% 0.53% +0.35
ITB iShares U.S. Home Constructi New 0.34% +0.34
PEP Pepsico Inc. New 0.34% +0.34
NU Nu Holdings Ltd./Cayman Isl-A Add +183.3% 0.46% +0.30
PCG P G & E Corp. New 0.30% +0.30
MRVL Marvell Technology Inc. New 0.27% +0.27
ADBE Adobe Inc. New 0.27% +0.27
IREN Iren Ltd. Add +7.3% 0.54% +0.26
SOUN Soundhound AI Inc. Class A Add +255.3% 0.35% +0.25
DAL Delta Air Lines Inc. New 0.25% +0.25
SOFI Sofi Technologies Inc. Add +28.5% 0.68% +0.23
QCOM Qualcomm Inc. New 0.22% +0.22
WDAY Workday Inc. Class A New 0.20% +0.20
NET Cloudflare Inc. Class A New 0.20% +0.20
CNC Centene Corp. Add +2315.6% 0.21% +0.19
VRT Vertiv Holdings Co. Class A New 0.19% +0.19
TDG Transdigm Group Inc. Add +1902.4% 0.20% +0.19
AZN Astrazeneca PLC-Spons ADR New 0.19% +0.19
LULU Lululemon Athletica Inc. New 0.19% +0.19
RSP Invesco S&P 500 Equal Weight New 0.19% +0.19
KO The Coca-Cola Co. New 0.19% +0.19
JNJ Johnson & Johnson New 0.18% +0.18
BPMC Blueprint Medicines Corp. Add +1090.2% 0.19% +0.18
TMF Dir DLY 20+YR TR BL3X ETF-Ui New 0.18% +0.18
URA Global X Uranium ETF Add +70.1% 0.32% +0.17
MDLZ Mondelez International Inc. Class A New 0.17% +0.17
TSLL Dirx DLY Tsla Bul 2X ETF-Aui Add +199.8% 0.26% +0.17
TKO Tko Group Holdings Inc. New 0.17% +0.17

Options Activity Q1 2025 → Q2 2025

STATE STR SPDR S&P 500 ETF T put Reduce -17.2% 48,337,100 $29.2B
STATE STR SPDR S&P 500 ETF T call Add +3.8% 24,121,400 $14.9B
INVESCO QQQ TR put Reduce -18.1% 12,768,600 $6.9B
ISHARES TR put Reduce -26.6% 35,514,100 $5.3B
TESLA INC put Add +5.4% 15,695,100 $5.0B
NVIDIA CORPORATION put Reduce -3.1% 29,957,000 $4.7B
TESLA INC call Reduce -1.9% 14,155,400 $4.5B
NVIDIA CORPORATION call Add +2.6% 27,952,400 $4.4B
INVESCO QQQ TR call Reduce -15.3% 7,240,500 $4.0B
ISHARES TR call Reduce -19.0% 29,318,900 $3.4B
NETFLIX INC. put Add +224.4% 2,258,100 $3.0B
META PLATFORMS INC call Reduce -8.9% 3,556,600 $2.6B
APPLE INC call Add +24.7% 11,548,600 $2.4B
SPDR GOLD TR call Add +10.8% 6,347,800 $1.9B
STRATEGY INC put Add +18.2% 4,801,700 $1.9B
APPLE INC put Add +11.9% 8,951,300 $1.8B
META PLATFORMS INC put Reduce -9.0% 2,413,500 $1.7B
NETFLIX INC. call Add +145.3% 1,241,300 $1.7B
ALPHABET INC call Add +44.4% 8,983,200 $1.6B
SPDR GOLD TR put Add +15.3% 5,031,200 $1.5B
SELECT SECTOR SPDR TR put Add +6.8% 19,247,300 $1.4B
MICROSOFT CORP call Reduce -14.9% 2,623,600 $1.3B
MICROSOFT CORP put Add +6.2% 2,347,800 $1.2B
AMAZON COM INC call Reduce -27.0% 5,194,300 $1.1B
UNITEDHEALTH GROUP INC call Add +464.6% 3,479,300 $1.1B
STRATEGY INC call Reduce -19.8% 2,513,500 $1.0B
AMAZON COM INC put Reduce -14.0% 4,569,100 $1.0B
BROADCOM INC put Add +0.5% 3,396,400 $936.2M
ADVANCED MICRO DEVICES INC call Add +2.6% 6,573,100 $932.7M
ALPHABET INC put Add +10.2% 5,079,600 $897.0M
SELECT SECTOR SPDR TR call Reduce -1.6% 11,228,100 $793.9M
ISHARES BITCOIN TRUST ETF call Add +30.5% 12,341,200 $755.4M
PALANTIR TECHNOLOGIES INC call Reduce -13.2% 5,149,200 $701.9M
ADVANCED MICRO DEVICES INC put Add +3.5% 4,875,800 $691.9M
TAIWAN SEMICONDUCTOR MANUFAC put Add +6.1% 2,982,400 $675.5M
VANECK ETF TRUST put Reduce -16.1% 4,804,400 $656.2M
ISHARES TR put Add +26.0% 7,799,800 $643.8M
PALANTIR TECHNOLOGIES INC put Add +0.8% 5,422,700 $614.3M
BROADCOM INC call Reduce -17.1% 2,233,500 $600.3M
VANECK ETF TRUST call Reduce -2.4% 4,990,800 $598.8M
ALIBABA GROUP HLDG LTD call Reduce -21.4% 4,840,300 $548.9M
ISHARES SILVER TR call Reduce -1.3% 15,572,300 $510.9M
COINBASE GLOBAL INC call Add +40.7% 1,418,200 $497.1M
BOOKING HOLDINGS INC put Reduce -51.7% 84,100 $486.9M
ISHARES BITCOIN TRUST ETF put Add +97.3% 7,602,900 $465.4M
COINBASE GLOBAL INC put Add +56.3% 1,260,000 $441.6M
ROBINHOOD MKTS INC call Reduce -10.8% 4,157,200 $389.2M
MICRON TECHNOLOGY INC put Add +11.5% 2,853,300 $351.7M
TAIWAN SEMICONDUCTOR MANUFAC call Reduce -16.4% 1,543,000 $349.5M
JPMORGAN CHASE & CO put Add +4.8% 1,166,300 $338.1M

Showing the first 50 of 6,782.

Calls and puts are listed by the shares they cover; their value is not part of the stock holdings above.

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 2,733$3.8BNVDA, IWM, TLT, GOOGL, SOXX
Q1 2026 2,613$3.2BNVDA, AMZN, SPY, META, TSM
Q4 2025 2,449$3.6BAAPL, NVDA, AVGO, NFLX, SPY
Q3 2025 2,622$4.5BNVDA, AAPL, MSFT, IWM, UNH
Q2 2025 2,428$3.7BNVDA, AAPL, AVGO, TLT, GOOGL
Q1 2025 2,403$2.8BTLT, NVDA, GOOGL, TSM, INTC
Q4 2024 2,442$3.5BAAPL, MSTR, INTC, NVDA, BABA
Q3 2024 2,294$3.0BNVDA, PDD, BABA, BA, KWEB
Q2 2024 2,401$3.1BNVDA, AVGO, INTC, C, PFE
Q1 2024 2,382$3.4BPFE, XLE, BA, INTC, TSM