SpaceX stock ends the day higher at the close after Nasdaq 100 weight boost

SpaceX stock closed higher on the Nasdaq on September 21, 2026, extending its recent rebound and reflecting investor interest following a significant change in its Nasdaq 100 index weighting. Compared with the broader market, the shares outpaced the S&P 500, which finished the session with a more moderate percentage move. The index adjustment and continued attention from major Wall Street firms kept SpaceX in focus after the closing bell.

September 21, 2026 in numbers

SpaceX Inc. (ISIN US84615Q1031, Nasdaq: SPCX) ended the regular session on the Nasdaq at USD 152.71 on September 21, 2026, gaining roughly low-single-digit percent versus the prior close on the same venue. In recent coverage, 247wallst.com highlighted the stock trading at USD 152.71, well below its 52-week high but still notably above its recent lows. Over the past month, SpaceX was reported as being up more than 9 percent, underlining the strength of its short-term recovery compared with the S&P 500’s more modest advance over the same period. The stock’s close remained below its 52-week peak of USD 225.64, leaving considerable distance to the high and underscoring the volatility investors have faced in recent weeks.

After the bell and the next session

After the bell today, attention remains on SpaceX’s rising role in the Nasdaq 100, as its index weight is set to nearly double from around 1.28 percent to 2.82 percent based on recent closing prices, according to 247wallst.com. This shift forces passive funds tracking the Nasdaq 100 to increase their exposure to the stock, which can influence trading flows on the next U.S. trading day, September 22, 2026. In a separate note, Yahoo Finance reported that Morgan Stanley highlighted growing AI collaboration between SpaceX and Tesla, adding another potential thematic driver for the shares as investors look ahead to upcoming catalysts and index-related flows after the closing bell.