# SpaceX added to Nasdaq-100 but slips below debut price — bet on the index-fund catch-up

_AI-generated trading idea · LONG · SPCX_

> Canonical page: https://commonquant.ai/research/for-you/spacex-added-to-nasdaq-100-but-slips-below-debut-price-bet-o--7ab1777b-53be-49ff-bfb3-75e9b6b94753

SpaceX just joined the Nasdaq-100 index, which should force index funds to buy the stock. Despite this guaranteed buying pressure and bullish ratings from major banks, the stock has slipped below its debut price—a divergence that could snap back as passive funds finish loading up.

## Idea

When a stock joins a major index like the Nasdaq-100, passive funds that track the index are forced to buy it, creating a wave of structural support. SpaceX recently joined the index and has buy-equivalent ratings from major banks like Morgan Stanley and Goldman Sachs. However, the stock has fallen below its IPO price in a two-day slide. This divergence between the forced structural buying from the index inclusion and the short-term price drop suggests the selling pressure is temporary. As index-tracking funds complete their required purchases, the stock is likely to find a floor and revert higher.

## Key details

- Symbols: SPCX
- Timeframes: D1
- Tags: \#space, \#ipo, \#index\_funds, \#institutional

## Community

- Upvotes: 3
- Views: 11
- Copies: 0
- Cosigns: 0

## News sources

- [SpaceX stock closes below debut price at $148 in two-day slide after Nasdaq 100 inclusion](https://www.cnbc.com/2026/07/08/spacex-stock-nasdaq-100-ipo.html) — CNBC
- [SpaceX joins Nasdaq-100 index, triggering passive fund buying](https://finance.yahoo.com/markets/stocks/articles/spacex-joins-nasdaq-100-index-115116736.html) — Yahoo Finance
- [SpaceX Joins Nasdaq 100; Crinetics Pharmaceuticals Soars on Buyout \| Stock Movers](https://www.bloomberg.com/news/videos/2026-07-07/spacex-joins-nasdaq-100-crinetics-soars-on-buyout-video) — Bloomberg

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