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Investment Bastion is an informational and analytical service. Nothing on this website constitutes investment, financial, legal, or tax advice, an offer or solicitation, or a recommendation to buy, sell, or hold any security. The service does not take account of your objectives, financial situation, or needs.

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MACRO

S&P 500 AI Stock Index: 1-Year Return

🇺🇸S&P 500|AI vs Non-AI, 52 Weeks
Investment Bastion
Equal-weighted price return, weekly closes, 10 Oct 2025 to 10 Oct 2026

Source: investmentbastion.com

Index Constituents

Mag 7, Oracle & PalantirMkt cap1Y return
GOOGLAlphabet$4.3T+48.9%
AAPLApple$4.9T+37.7%
NVDANVIDIA$5.5T+25.2%
AMZNAmazon.com$2.8T+21.3%
PLTRPalantir Technologies$502B+19.2%
MSFTMicrosoft$4.0T+5.4%
METAMeta Platforms$1.8T+2.1%
TSLATesla$1.5T-7.4%
ORCLOracle$429B-51.4%
Group$25.8T+12.6%
Chips & Chip EquipmentMkt cap1Y return
MUMicron Technology$1.2T+467.1%
MRVLMarvell Technology$241B+221.9%
TERTeradyne$63B+205.3%
INTCIntel$550B+187.9%
AMDAdvanced Micro Devices$993B+183.0%
LRCXLam Research$399B+143.4%
AMATApplied Materials$402B+142.6%
KLACKLA$255B+99.9%
MPWRMonolithic Power Systems$68B+53.8%
SNPSSynopsys$98B+16.2%
QCOMQUALCOMM$187B+15.6%
AVGOBroadcom$1.7T+11.8%
CDNSCadence Design Systems$97B+7.9%
Group$6.2T+126.4%
Networking & OpticsMkt cap1Y return
LITELumentum$100B+637.5%
CIENCiena$64B+188.4%
COHRCoherent$61B+181.4%
GLWCorning$135B+89.8%
APHAmphenol$215B+43.9%
ANETArista Networks$273B+40.6%
Group$848B+171.9%
Servers & MemoryMkt cap1Y return
SNDKSandisk$232B+1,253.0%
DELLDell Technologies$373B+293.7%
STXSeagate Technology$178B+266.8%
WDCWestern Digital$149B+244.6%
HPEHewlett Packard Enterprise$98B+204.8%
JBLJabil$32B+58.0%
SMCISuper Micro Computer$27B-20.8%
Group$1.1T+253.9%
Power & Data CentersMkt cap1Y return
PWRQuanta Services$106B+69.1%
GEVGE Vernova$268B+66.5%
VRTVertiv$93B+43.7%
EQIXEquinix$101B+30.3%
ETNEaton$167B+17.4%
DLRDigital Realty Trust$66B+7.7%
VSTVistra$54B-17.7%
CEGConstellation Energy$106B-18.8%
NRGNRG Energy$23B-32.1%
Group$984B+18.1%

Source: Investment Bastion. Price return, 10 Oct 2025 to 10 Oct 2026. Market cap in US dollars.

Methodology

The index holds the 44 S&P 500 members whose sales depend most on AI spending, in 5 groups: the Mag 7 with Oracle and Palantir, chips and chip equipment, networking and optics, servers and memory, and power and data centers. The other 456 members form the Non-AI side.

Every week we average the price change of each side, with each stock counting the same, and chain the weeks into one 52-week line. Group averages are built the same way. Prices are Bastion's weekly closes, with the latest close as the last point; dividends are not included. The page updates on its own as new prices arrive.

Weighted by company size, the gap is smaller, because the largest AI companies rose less than the smaller ones: AI +32%, Non-AI +11%. The list uses today's index members, so a company that joined the index after a strong run counts for the whole 52 weeks.