Strota/ Newsroom/ Global Markets/ 2026-09-18

Nasdaq jumped 1.7%

Strota Newsroom · Global Markets · session of 2026-09-18 · market close

Nasdaq Composite closed at 26,418.30 on 2026-09-17, jumped 1.7% on the session and is +13.7% year-to-date. Here is what the market data shows.

The Nasdaq Composite ended the 17 September session at 26,418.3, a gain of 1.69% on the day. That was the largest advance of the three big American benchmarks on that date: the S&P 500 added 1.14% and the Dow Jones Industrial Average 0.61%, so the buying skewed toward the technology-heavy end of the US market rather than spreading evenly across it.

The move was big relative to the index's recent drift. Over the previous week the Nasdaq had gained 1.29%, and over three months 1.52%, but over the past month only 0.49% — so this one session accounted for more than the entire month's progress. For the year to date the index was up 13.67%.

The close left the Nasdaq 2.49% below its 52-week high of 27,093.9 and 27.04% above its 52-week low of 20,794.64. It sat above both its 50-day and 200-day moving averages, at 26,065.26 and 24,536.97 — the average closing level of the last 50 and 200 trading days, used as rough trend markers.

Peer markets here are not all quoted from the same session, so they read in groups. On 17 September, alongside the Nasdaq, the S&P 500 rose 1.14% and the Dow 0.61%. The latest close on record for Europe and much of Asia was a session earlier, on 16 September: the FTSE 100 up 0.29%, the DAX 0.53%, the CAC 40 0.62%, Hang Seng 0.19%, Shanghai 0.71%, the Sensex 0.45% and the Nifty 50 0.43%. Three Asia-Pacific markets had already traded a session ahead of Wall Street, closing on 18 September: the Nikkei up 1.15%, the KOSPI 2.23% and the ASX 200 0.63%.

The news side is thin, with three items marked fresh. A TradingView headline reported that S&P 500 and Nasdaq 100 futures rose despite a 25 basis point Fed rate increase. Two days earlier, according to a report from TradingKey, US stocks had closed lower, with the Dow down over 300 points and the 10-year Treasury yield near a 19-year high. The rest are evergreen explainers and older Nasdaq commentary.

None of that amounts to a confirmed driver. The evidence carries no sector breakdown and no breadth or volume data, and the one dated macro headline describes futures rather than the cash close, so it does not establish why the Nasdaq moved as much as it did. What it does establish is narrower: a 1.69% session, a level above both moving averages, and a gap to the 52-week high of under three percent.

The numbers

Around the world (same session)

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How this article was made: Strota assembled the market data above (the index's price history, same-session peer-market moves and public headlines) and an AI model wrote the narrative strictly from that evidence — it is not permitted to add outside facts or numbers. Every figure comes from the underlying market/public data.