Market Watch 360
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Market Watch 360

30 stocks. One weighted signal.

The market's biggest moves come from a few key players. Track the top 30 stocks and see the bigger picture.

Market Watch 360: 30 stocks. One weighted signal. The top 19 S&P 500 securities are shown in IVV weight order, followed by 11 more. Combined reported weight is 55.01%. The S&P 500 closed at 7,623.68 on October 23, 2026, down −39.75 points (−0.52%). The contribution graphic is illustrative. MARKET WATCH 360 30 stocks. One weighted signal. The market's biggest moves come from a few key players. Track the top 30 stocks and see the bigger picture. Top 30 S&P 500 securities 19 shown Rank 1: NVIDIA (NVDA) — 7.76% of IVV holdings 01 NVDA 7.76% Rank 2: Apple (AAPL) — 7.68% of IVV holdings 02 AAPL 7.68% Rank 3: Microsoft (MSFT) — 5.85% of IVV holdings 03 MSFT 5.85% Rank 4: Amazon (AMZN) — 3.71% of IVV holdings 04 AMZN 3.71% Rank 5: Alphabet Class A (GOOGL) — 2.88% of IVV holdings 05 GOOGL 2.88% Rank 6: Broadcom (AVGO) — 2.32% of IVV holdings 06 AVGO 2.32% Rank 7: Alphabet Class C (GOOG) — 2.30% of IVV holdings 07 GOOG 2.30% Rank 8: Meta Platforms (META) — 2.16% of IVV holdings 08 META 2.16% Rank 9: Tesla (TSLA) — 1.60% of IVV holdings 09 TSLA 1.60% Rank 10: Eli Lilly (LLY) — 1.58% of IVV holdings 10 LLY 1.58% Rank 11: Berkshire Hathaway Class B (BRK.B) — 1.54% of IVV holdings 11 BRK.B 1.54% Rank 12: Micron (MU) — 1.46% of IVV holdings 12 MU 1.46% Rank 13: JPMorgan Chase (JPM) — 1.35% of IVV holdings 13 JPM 1.35% Rank 14: Advanced Micro Devices (AMD) — 1.25% of IVV holdings 14 AMD 1.25% Rank 15: ExxonMobil (XOM) — 1.11% of IVV holdings 15 XOM 1.11% Rank 16: Visa (V) — 1.07% of IVV holdings 16 V 1.07% Rank 17: Johnson & Johnson (JNJ) — 0.97% of IVV holdings 17 JNJ 0.97% Rank 18: Walmart (WMT) — 0.82% of IVV holdings 18 WMT 0.82% Rank 19: Mastercard (MA) — 0.77% of IVV holdings 19 MA 0.77% 11 11 more of 30 stocks IVV holdings weights · October 22, 2026 GOOGL and GOOG are separate Alphabet share classes. 7.76% IVV weight 7.68% IVV weight 5.85% IVV weight WEIGHTED INDEX ENGINE 30 stock weights one index view S&P 500 Index signal from the top 30 stocks 55.01% top-30 index weight 7,623.68 −39.75 points −0.52% OCT 23, 2026 CLOSE Close-to-close movement · direction only Two closes shown; no intraday price path is plotted. PRIOR CLOSE OCT 23 CLOSE Contribution concept ILLUSTRATIVE · NO DAILY TOTALS Positive contribution Negative contribution Conceptual balance only; no contributor counts or point totals shown. IVV TOP-30 WEIGHT COVERAGE · OCTOBER 22, 2026 | STATIC WEBSITE SNAPSHOT · NOT A LIVE DATA FEED
S&P 500 security weights are from IVV holdings dated October 22, 2026. The index close is dated October 23, 2026. Static snapshot; this website does not stream market data. The contribution concept is illustrative. Weights: iShares IVV holdings. Index close: Financial Times historical data. Swipe sideways to explore this view.

See what's really moving the market

Most traders see price. Few see weighted impact.

Market Watch 360 brings breadth, weighted contribution, and the companies behind the move into one desktop view.

Market Intelligence

Read market breadth and weighted contributions together. Candle Pulse compares seven timeframes in Fixed or Rolling mode.

Top 30 Weighted Engine

Focus on the stocks with the greatest influence and see how much each one contributes to the index.

Stocks on One Screen

Compare leaders, laggards, biggest impacts, and movers without bouncing between charts.

HOW IT WORKS

From 30 stocks to the bigger picture.

See which companies are moving the market—and how much each one matters.

01

Track the top companies

The desktop development preview has three market workspaces and monitors up to 30 selected symbols in one active market. Nasdaq-100 and Dow 30 need valid reference data before their values are available.

02

Measure their impact

See each selected stock's estimated weighted contribution when valid market-specific reference data is available. The S&P 500 view currently uses IVV-based estimates.

Want to compare all three methods? Explore Index Guides.

03

See the market clearly

Watch breadth, contributions, and charts update as the market moves.

Market Watch 360 is a dynamic desktop application, not a static snapshot.

Why people notice it

Why can the index rise when most stocks fall?

A few influential stocks can outweigh a much broader move. Market Watch 360 puts participation and weighted impact side by side, so the difference is easier to spot as it develops.

Cleared illustration based on the dark Market Watch 360 desktop overview, showing Market Intelligence, a weighted session chart, and stock cards
Cleared app rendering · breadth beside the weighted chart

Is the move broadly supported?

Compare how many selected stocks are rising or falling with the weight behind each side.

Which stocks are carrying it?

Move from the index headline to the companies making the largest contribution.

Is that balance changing?

Watch the desktop view update as market data changes throughout the session.

THE DESKTOP EXPERIENCE

The whole market picture. One workspace.

A native Windows workspace that keeps breadth, the weighted chart, market tabs, and stock cards in sight.

Market Watch 360 / Windows desktopCleared app rendering
Cleared rendering based on the Market Watch 360 Windows desktop layout, showing Market Intelligence, a weighted chart, market tabs, and stock cards
Cleared rendering based on the desktop app, with market values removed. This website preview is static; the Windows application updates as market data changes. This site does not stream live market data. Swipe sideways to inspect the screenshot.

  • Market Breadth

    See who's advancing, who's declining, and how their impact compares.

  • Candle Pulse

    Compare seven selected-basket candles in default Fixed or trailing Rolling mode.

  • Weighted Index Chart

    See how individual companies contribute to the broader market picture.

  • Up / Down / Impact / Biggest Movers

    Quickly switch between market leaders, laggards, weighted impact, and biggest movers.

  • Clean Stock Cards

    Monitor multiple companies in organized, customizable layouts.

  • Fast Desktop Workflow

    Native charts, flexible layouts, and continuously updating market data—without browser-based chart windows.

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The idea behind the app

It started with ten stocks.

Market Watch 360 started with a simple idea: put 10 stocks on one screen and see what was really moving the market.

Once I could see them together, the bigger picture clicked. I kept building—adding market breadth, weighted impact, charts, and new ways to read each move. Ten stocks turned into a tool for understanding the market at a glance.

Boom.

Product status

Built now. Being built. On the horizon.

All features and status
Existing

In the app today

  • Market Breadth and weighted view
  • Stock cards and native charts
Existing

Candle Pulse

Compare selected-basket movement across seven timeframes in Fixed or Rolling mode. Learn how the modes work.

In progress

What comes next

  • Trend Matrix 360 release review

Your connection stays yours

Market data stays in the desktop app.

  • Customers use their own Alpaca accounts and enter API keys locally in the desktop app.
  • This website never requests or stores those credentials and does not stream Alpaca market data.
  • Market Watch 360 displays and analyzes data. It does not place trades.

EARLY FEEDBACK

A different way to see the market.

Early reactions from people who have seen Market Watch 360.

Wow. I always looked at how many stocks were up or down. I didn't realize how misleading that could be until I saw the actual weighted impact. That's information worth having.

Ron J. Tucson, AZ

The Impact view got my attention. A stock can make a huge move and barely affect the index, while another stock moves just a little and makes a big difference. I honestly never looked at the market that way before.

Camern W.B. Milwaukee, WI

What impressed me most is that everything changes as the market moves. You're not looking at yesterday's numbers or a static picture. You can actually watch the balance shift throughout the day.

Deniz N. Gilbert, AZ
Read All 7 Reviews Show Fewer Reviews

I've watched markets for years, but I never really thought about how much each individual stock was contributing to the index. Seeing it broken down like this is an eye-opener. It gives you a completely different perspective.

Leon T. Ashburn, VA

I like how simple it makes something so complicated. You can see which companies are pushing the market higher and which ones are pulling it down, all on one screen. It just makes sense.

Teresa B. Guanajuato, Mexico

It's one of those things you look at and wonder why nobody showed it to you this way before. The information is right there, organized, easy to follow, and actually useful.

Tina Z. Washington, DC

Once you see what's really driving the index, it's hard to go back to just watching the index number. I wouldn't want to trade without having this information beside me.

Valdim Houston, TX

Early feedback from friends and family of the creator.

Take a closer look

See Market Watch 360 on your terms.

Request the free 14-day trial. This local preview saves your request but does not send an email or start trial access.

Request a free trial