Ranked by current index weight. Use this as a research mapβnot as financial advice.
Methodology: We list S&P 500 constituents by index weight (float-adjusted market cap) as of October 26, 2025. Weights change with prices, share counts, and index rebalances.
How to use this list
- Understand what drives the index: the top names explain most day-to-day S&P moves.
- Study sectors and revenue models before investing; diversify across risk factors.
- Prefer dollar-cost averaging + broad ETFs for core exposure; single-stock picks are for satellite positions.
Top 25 S&P 500 Stocks by Index Weight
| Rank | Company | Ticker | Sector (GICS) | Index Weight* | Why it matters (1-liner) |
|---|---|---|---|---|---|
| 1 | Nvidia | NVDA | Information Technology β Semiconductors | 7.39% | AI accelerator leader; outsized impact on S&P moves. |
| 2 | Apple | AAPL | Information Technology β Hardware | 6.35% | iPhone + Services flywheel; huge buybacks. |
| 3 | Microsoft | MSFT | Information Technology β Software/Cloud | 6.34% | Azure + AI embedded across the stack. |
| 4 | Amazon | AMZN | Consumer Discretionary β E-commerce/Cloud | 3.90% | Retail scale + AWS margins. |
| 5 | Meta Platforms | META | Communication Services β Social/Ads | 3.02% | Ad recovery + efficiency focus. |
| 6 | Broadcom | AVGO | Information Technology β Semis/Infrastructure | 2.72% | Chips + enterprise software mix. |
| 7 | Alphabet (Class A) | GOOGL | Communication Services β Search/Ads | 2.65% | Search, YouTube, Cloud; dual-class shares. |
| 8 | Alphabet (Class C) | GOOG | Communication Services β Search/Ads | 2.48% | Non-voting class; same economics as GOOGL. |
| 9 | Tesla | TSLA | Consumer Discretionary β Automobiles | 2.35% | EV scale + autonomy optionality (volatile). |
| 10 | Berkshire Hathaway (Class B) | BRK.B | Financials β Multi-Sector Holdings | 1.73% | Insurance float + eclectic portfolio. |
| 11 | Walmart | WMT | Consumer Staples β Food & Staples Retailing | 1.38% | Defensive retail + scale logistics. |
| 12 | JPMorgan Chase | JPM | Financials β Banks | 1.33% | Systemically important bank; rate-cycle proxy. |
| 13 | Oracle | ORCL | Information Technology β Software | 1.32% | Cloud pivot + enterprise lock-in. |
| 14 | Eli Lilly | LLY | Health Care β Pharmaceuticals | 1.21% | Obesity/diabetes pipeline drives valuation. |
| 15 | Visa | V | Financials β Payments | 1.10% | Global payments network; high margins. |
| 16 | Mastercard | MA | Financials β Payments | 0.84% | Cross-border spend lever; resilient cash flows. |
| 17 | Exxon Mobil | XOM | Energy β Oil & Gas | 0.80% | Upstream scale + returns focus. |
| 18 | Netflix | NFLX | Communication Services β Entertainment | 0.76% | Streaming leader; ad-tier expansion. |
| 19 | Johnson & Johnson | JNJ | Health Care β Pharma/MedTech | 0.75% | Diversified healthcare + dividend stalwart. |
| 20 | Palantir Technologies | PLTR | Information Technology β Systems Software | 0.71% | AI platforms for gov & enterprise. |
| 21 | Costco | COST | Consumer Staples β Food & Staples Retailing | 0.67% | Membership model; strong comp growth. |
| 22 | Advanced Micro Devices | AMD | Information Technology β Semiconductors | 0.67% | Data-center CPU/GPU share gains vs peers. |
| 23 | AbbVie | ABBV | Health Care β Pharmaceuticals | 0.66% | Immunology/oncology; post-Humira transition. |
| 24 | Bank of America | BAC | Financials β Banks | 0.63% | Deposit beta & credit quality drive cycle. |
| 25 | The Home Depot | HD | Consumer Discretionary β Specialty Retail | 0.63% | Pro customer mix; housing & rate-sensitive. |
*Weights change continuously with market moves and index updates.
Source: Live S&P 500 constituent weights as of Oct 26, 2025 from Slickchartsβ S&P 500 index page (rankings and weights shown above). See: S&P 500 Companies by Market Cap (Slickcharts).
Context: Concentration, AI, and Cyclicality
Concentration risk
The top handful of names now drive a large share of index returns. When they rally or stumble, the entire index tends to follow.
AI tailwinds
Semiconductors (NVDA, AVGO, AMD) and hyperscalers (MSFT, AMZN, GOOG/GOOGL, META) are key beneficiaries of AI infrastructure and workloads.
Macro sensitivity
Banks (JPM, BAC), payment networks (V, MA), energy (XOM), and housing-linked retail (HD) tend to be more rate- and cycle-sensitive.
Research Tips Before You Buy Anything
- Read the latest 10-K/10-Q, listen to earnings calls, and check capital allocation (buybacks, dividends, debt).
- Map revenue by segment and geography; identify 2β3 leading risks (competition, regulation, customer concentration).
- Use dollar-cost averaging and risk limits per name; keep the broad S&P 500 ETF as your core for diversification.
Not financial advice. This article is educational and for research inspiration only. Investing involves risk, including possible loss of principal.
Keep Learning
- S&P 500: 10-Year Reality Check
- The S&P 500 Blueprint 2026β2050
- Index Funds vs ETFs: Complete Guide
FAQs
How often does this ranking change?
Any time prices move or the S&P 500 committee rebalances. Big moves in mega-caps can shift ranks intraday.
Is the S&P 500 market-cap weighted?
Yesβfloat-adjusted market cap. Larger companies carry more weight, which is why the top stocks have an outsized impact.
Are GOOG and GOOGL different companies?
No. Theyβre two share classes of AlphabetβClass A (GOOGL) with votes and Class C (GOOG) without. Economics are similar.
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