Nasdaq Composite

The Nasdaq Composite appears in EP57 美股动荡，东升西降？这回是走是留 as the tech-heavy U.S. index whose technical break and mega-cap dependence anchor much of the episode’s caution. 大雄 notes that the Nasdaq had broken below its 200-day moving average and that short-term moving averages were turning weaker, making aggressive bottom-fishing unattractive.

Source Position

• The Nasdaq is used as the public-market expression of AI and mega-cap technology enthusiasm.
• The source links Nasdaq risk to Mega-Cap Concentration Risk, AI Equity Valuation Risk, and Index Reentry Discipline.
• In the Q&A, the speakers warn that the relationship between the Nasdaq and Hang Seng Tech Index is not a mechanical seesaw; both can fall together during liquidity stress.

Connections

• S&P 500 — broader U.S. benchmark used for valuation and ordinary index investing.
• Hang Seng Tech Index — Hong Kong technology index discussed through changing correlation with U.S. tech.
• Passive Investing and Investment Risk Management — ordinary-investor implementation frames.