What exactly is the NASDAQ-100?
An index of the 100 largest non-financial companies by market cap listed on the US NASDAQ exchange. Launched in 1985, it's anchored by big tech like Apple, Microsoft, Nvidia, and Amazon. QQQ (Invesco QQQ Trust) is the most representative ETF tracking it — 'investing in QQQ' effectively means diversifying across all 100 NASDAQ-100 names by market-cap weight.
Why are the top 10 holdings weighted so heavily?
The NASDAQ-100 uses modified market-cap weighting, so larger-cap stocks get larger weights. Because big tech's market caps are overwhelmingly large, the top 10 holdings make up roughly 50% of the index. So while it looks diversified, it's actually concentrated in a handful of names whose earnings and prices drive overall index performance.
QQQ or QQQM — which is better?
Both track the same NASDAQ-100 index. QQQ has vastly larger assets and trading volume, favoring short-term trading and options. QQQM (Invesco NASDAQ 100 ETF) charges 0.15% vs QQQ's 0.20% — 0.05pp lower — saving cost for long-term accumulation and holding. If you're buying to hold long-term rather than trading daily, QQQM is more cost-efficient.
What about leveraged ETFs like TQQQ?
TQQQ is a leveraged ETF tracking 3× the NASDAQ-100's DAILY return. Because it resets to 3× daily, choppy sideways markets cause 'volatility decay' — the index can go nowhere while TQQQ loses value. It's unsuitable for long-term holding outside short (days-to-weeks) directional bets, and in downturns losses amplify 3×, potentially wiping out most of your principal.
As of when are these weights?
The weight and sector data are estimates from public sources. Actual weights shift daily with market prices, and quarterly rebalancing (Mar/Jun/Sep/Dec) adds/removes holdings and adjusts weights. Per-stock prices and daily change come from unofficial Yahoo Finance data refreshed every 5 minutes but may lag 15-20 minutes — for exact live weights, check the issuer's (Invesco) official disclosures.
Does QQQ pay dividends? What's the yield?
QQQ does pay quarterly dividends, but the yield is very low at ~0.5-0.7%. Most NASDAQ-100 constituents are tech companies that prioritize reinvestment and growth over dividends. So QQQ is a growth ETF aimed at price appreciation (capital gains) rather than dividend income. For steady dividend cash flow a dividend ETF like SCHD fits better; for growth, QQQ.
Should I invest in QQQ or the S&P 500 (VOO)?
QQQ (NASDAQ-100) is tech-concentrated, so both its volatility and expected return are higher. It outpaces the S&P 500 in bull markets but falls harder during tech corrections. VOO (S&P 500) includes all 11 sectors, so it's more diversified and stable. For aggressive growth, QQQ; to track the broad market steadily, VOO is the usual choice — and holding both for balance is common.
How are QQQ's gains and dividends taxed?
In a regular taxable brokerage account, profit from selling QQQ is a capital gain: hold for more than a year and it's long-term, taxed at 0%, 15%, or 20% by income bracket; sell within a year and it's short-term, taxed at ordinary income rates (10%–37%). QQQ's dividends are small and mostly qualified, so they also get the 0/15/20% rate. High earners add a 3.8% Net Investment Income Tax. To defer or avoid these taxes entirely, hold QQQ (or the cheaper QQQM) inside a 401(k), Traditional IRA, or Roth IRA.
Is the NASDAQ-100 the same as 'the Nasdaq'?
No, and the confusion is common. The Nasdaq Composite includes essentially every common stock listed on the exchange — several thousand names, financials included, down to tiny unprofitable companies — while the NASDAQ-100 keeps only the 100 largest non-financial listings. When a news anchor says 'the Nasdaq fell 2%,' they almost always mean the Composite; QQQ tracks the 100. The two move closely together because both are cap-weighted and the same mega-caps sit at the top of each, so the Composite's thousands of small names contribute very little to its return. The practical differences: the Composite carries a long tail of speculative small caps that adds volatility without much weight, and it includes the financials that NASDAQ-100 rules exclude by design. Fidelity's ONEQ is the main ETF tracking the Composite, but it is far smaller and costlier than QQQ, which is why almost all Nasdaq index money is really NASDAQ-100 money.
Isn't QQQ too expensive to buy right now?
Nobody can predict short-term tops and bottoms. But a long-term DCA approach spreads out your entry points and reduces the risk of buying at a peak. Historically the NASDAQ-100 endured major corrections — the dot-com bust (2000), the 2008 crisis, the 2022 drop — yet trended up long-term. Still, past performance doesn't guarantee the future and tech-concentration risk is high, so this page is for index-structure information, not investment advice.