What Happens to Stocks After Joining the Nasdaq-100 (History Has a Clear Answer)
2026-07-20 10:10
•Adria Cimino •The Motley Fool
••••• •••••• Axe Capital view
Index Inclusion Is No Investment Guarantee
Joining the Nasdaq-100 often sparks a short bump in a stock’s price, but gains rarely last without solid fundamentals.
SpaceX’s recent entry into the Nasdaq-100 showcased an all-too-familiar pattern. Despite the hype, its share price briefly lifted before a steep decline followed. History shows that Nasdaq-100 additions often get a modest bump—think 10-25% in a couple of months—but that momentum fades unless the company truly delivers. For South African investors following the USD/ZAR, this means expectations should be anchored in company earnings and growth, not index fads. Our local market rarely mirrors these tech-momentum stories directly, but coins like Naspers and Prosus hold similar narratives: structural challenges and profitability are what really move the needle. If you chase the buzz around index shortcuts, you risk overpaying for transient enthusiasm. This view could be wrong if a company improves fundamentals faster than expected or if market sentiment turns sharply bullish. this is just my opinion and not financial advice
Trim exposure to speculative Nasdaq tech stocks like SpaceX unless they show clear profitability improvements. Stick to South African counters with sound balance sheets such as Naspers or Prosus, but watch USD/ZAR volatility closely as a sentiment barometer.
- SPCX
- USD/ZAR
- Naspers
- Prosus
- Prolonged market enthusiasm lifting tech stocks despite weak earnings
- Sudden rand volatility impacting offshore investment returns
6/10
SpaceX joined the Nasdaq-100 in July 2026 following the index's new fast-track admission rules. Historical analysis of past additions shows that while stocks may see modest upward momentum around their inclusion, gains are typically limited and short-lived. SpaceX exemplifies this pattern, rising slightly after inclusion but then declining significantly. The article advises investors to focus on company fundamentals and profitability rather than index membership as an investment signal.
This article was originally published by The Motley Fool and has been adapted here for Axe Capital Trading News.
Publisher: The Motley Fool
Author: Adria Cimino
Categories: Equities, IPOs, Technology, AI, Semiconductors
Tickers: SPCX, DASH, MDB, PLTR, STX, WDC
Sentiment: Mixed - Stock declined 45% from its IPO peak of $225 to $123.99, falling below its $135 IPO price. The Nasdaq-100 inclusion provided minimal lasting gains. Company is not yet profitable and relies on unproven technology, carrying significant risk. Showed 12% gain in two months following Nasdaq-100 addition in December 2023, representing modest positive momentum typical of index inclusions.
Keywords: Nasdaq-100, index inclusion, SpaceX IPO, stock performance, index rebalancing, investment strategy
Insights:
- SPCX: Negative: Stock declined 45% from its IPO peak of $225 to $123.99, falling below its $135 IPO price. The Nasdaq-100 inclusion provided minimal lasting gains. Company is not yet profitable and relies on unproven technology, carrying significant risk.
- DASH: Neutral: Showed 12% gain in two months following Nasdaq-100 addition in December 2023, representing modest positive momentum typical of index inclusions.
- MDB: Neutral: Showed 12% gain in two months following Nasdaq-100 addition in December 2023, representing modest positive momentum typical of index inclusions.