Nasdaq 100 Drops 6% on AI Fears: Which Holdings Hit You

Nasdaq 100 futures rallied early on Friday 6 November 2026, CoinDesk reported, after the tech-heavy index shed more than 6% on Thursday on fears of an AI slowdown. For anyone holding the big AI names, the two-day swing changed both the dollar value of those positions and how much of a portfolio now rides on a single theme.

What happened to the Nasdaq 100 on November 5 and 6?

The Nasdaq 100 lost more than 6% on Thursday 5 November 2026, in what MarketWatch called Wall Street's worst selloff since the 2025 tariff shock. The decline started in AI-linked names and then spread to the broader market, pulling down stocks with no direct AI exposure.

By Friday morning, the picture had steadied. CoinDesk reported that Nasdaq 100 futures were pointing higher, signalling a possible respite, and Fortune wrote that U.S. futures suggested the prior 24 hours of tech carnage may have been overdone.

• The trigger: fears that AI spending and revenue growth are slowing faster than priced in.
• The spread: selling moved beyond AI into the wider index, a sign of broad de-risking.
• The bounce: futures recovered overnight, though a futures rally is not the same as a confirmed floor.

None of that tells you how your own portfolio moved. A 6% index drop hits two investors very differently depending on which names they hold and how concentrated they are.

Which AI-linked holdings dragged your portfolio most?

The holding that hurt most is rarely the one that fell the most in percentage terms, it is the one whose dollar loss was largest, and that depends on position size. A 7% drop on a position worth $18,000 costs you more than a 12% drop on a $3,000 position.

Rank by dollar impact, not percentage

To see the real damage, sort your positions by day change in your home currency, not by percentage. In PortfolioTrackr, the summary card and the P&L chart show each holding's value today against yesterday, so the names that moved the most money sit at the top.

• NVDA, AMD, AVGO: direct AI chip exposure, usually the biggest single-day swings.
• MSFT, GOOGL, AMZN, META: mega-cap platforms with large AI capex and large index weights.
• Second-order names: data-centre, power and networking stocks that sold off alongside the AI leaders.

If you hold the same theme across more than one account, the ALL PORTFOLIOS combined view adds up a name held at two or three brokers so you see your true total exposure to it, not three partial numbers. That combined view is on every plan for anyone with more than one portfolio.

Why a broker app alone hides this

A single broker app only shows the slice of a name held in that one account. If your NVDA sits partly at Interactive Brokers and partly at a second broker, no single app adds them up. We cover this gap in detail in our guide on portfolio tracker versus spreadsheet tracking, and it is the main reason multi-account investors miss their real concentration.

How to measure your tech exposure as a percentage

Your tech exposure is the combined value of your technology and AI-linked holdings divided by your total portfolio value. If AI-related names add up to $44,000 of a $100,000 portfolio, your tech exposure is 44%, and a 6% index move on that slice is roughly a 2.6% hit to the whole.

PortfolioTrackr groups holdings by asset and shows each position's share of the total, so you can add up the technology and AI names yourself. Note that holdings cannot be auto-filtered by sector, so the tech grouping is one you read off the position list rather than a sector label the app applies.

• Count the direct AI names: chipmakers, cloud platforms, AI software.
• Count the adjacent names: power, cooling, networking and data-centre REITs that trade with the theme.
• Divide by your total: that single percentage is your real exposure to one storyline.

How does the Nasdaq 100 compare to the S&P 500 for tech weight?

The Nasdaq 100 is far more tech-concentrated than the S&P 500, which is why it fell harder on Thursday. The Nasdaq 100 holds only non-financial companies and is dominated by technology, while the S&P 500 spreads across all eleven sectors including financials, healthcare, energy and staples.

Using both as benchmarks tells you something precise. If your portfolio fell more than the Nasdaq 100, you are more concentrated than that already tech-heavy index. If you fell between the two, your mix sits somewhere between pure tech and the broad market.

What benchmarking actually answers

Benchmarking against both indices answers a factual question: did your own mix amplify or soften the move? It is not a signal to do anything. It simply tells you how closely your portfolio tracks a single theme, which is the number you want to know before the next headline hits.

How to check your exposure before the next AI headline

Checking your position against your own targets is not advice, it is knowing where you stand. The fastest way to be ready for the next swing is to set price alerts on the names that moved your account the most, so you hear within a minute of a level being hit.

PortfolioTrackr checks every position and watchlist level once a minute while the market is open, and around the clock for crypto. Alerts are price levels only: a Target 1, a Target 2 and a stop-loss level on a position, or a price above or below on a watchlist entry. The app reports status against your levels, it does not tell you to buy or sell.

• Set levels on your largest AI names: the positions that drove Thursday's dollar loss.
• Add watchlist levels: 10 tickers on the free trial and Starter, 50 on Pro and Lifetime.
• Pick your channel: email, WhatsApp, Telegram and push on every plan, SMS on Pro and Lifetime.

For a wider view on how this AI repricing is splitting across markets, our piece on the Asian AI rout ahead of jobs day and the breakdown of the AI trade split hitting bitcoin miners both show how far the theme now reaches beyond the obvious chip names.

How do foreign-listed tech holdings change the picture?

A tech holding bought on a foreign exchange carries a currency gain or loss on top of its price move, and PortfolioTrackr shows that separately. The cost of each holding is converted at the exchange rate of the day you bought it, its value at today's rate, and the currency effect appears as its own line on the summary card and the P&L chart.

This matters on a selloff day because the price drop and the currency move can point in different directions.

• A European or Asian chip name can fall in its local price while a stronger local currency offsets part of the loss in your home currency.
• Dividends are converted at the pay-date rate, so income is recorded at the right value.
• The tax report converts each trade at the rate of its own date and prints that rate on every row, across 10 years of daily rates for 100 currencies.

PortfolioTrackr covers 100 stock exchanges and 100 currencies, so a portfolio that spans the NYSE, the London Stock Exchange and frontier venues reads in one home currency. Our overview of tracking stocks and crypto together explains how mixed-asset portfolios roll up into a single number.

The bottom line

The Nasdaq 100 fell more than 6% on Thursday 5 November 2026 on AI-slowdown fears, and futures rallied the next morning, per CoinDesk and Fortune. What that cost you depends on which AI names you hold and how concentrated your portfolio is in a single theme.

• Rank your losses by dollar impact, not percentage, to find the holding that really hurt.
• Measure your tech exposure as a share of the whole and benchmark it against both the Nasdaq 100 and the S&P 500.
• Set price-level alerts on your largest names so you hear within a minute next time, and check each position against your own targets.

Knowing your exposure is a fact you can read today. What you do with it stays your decision.

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