Nikkei 225 · September 14, 2001

A bounce while New York was still shut

+4.12%

single-day change vs previous close

Part of a longer stretch

September 11 and deflation

midway through · 2001-05-07 → 2002-02-06, -35.16% over the whole period

What happened that day?

14 September 2001 — the Nikkei 225 rose 4.12%. No single cause for that one day could be pinned down
Two sessions earlier, on 12 September, the index had fallen more than six percent. The news from America arrived overnight, Tokyo time
US markets were closed. For those days only Asia and Europe were open, and nobody knew where prices belonged
The Bank of Japan was pumping cash into the market. Keeping settlement from seizing up came first
The bounce did not hold. Tokyo fell hard again on 17 September when New York reopened — and that was the episode low
From the May high to the 17 September low the index fell 34.59%
The day of the attack and the day the market bottomed are not the same day. Prices decide where an episode ends

Sources

Every figure on this page is recomputed from the original daily closing prices and checked against them at build time. The account of what happened is put together from the public record; where a specific source was consulted it is listed above.