WhyItDropped

Nikkei 225 · September 30, 2015

The give-back the day after the bottom

+2.70%

single-day change vs previous close

Part of a longer stretch

A two-month retrace

early in it · 2015-09-29 → 2015-12-01, +18.20% over the whole period

What happened that day?

  • The Nikkei 225 rose 2.7% on the day. The previous session had been the bottom of this decline
  • There was no single piece of news. It was the last day of the quarter, and fund managers were tidying their books
  • The Nikkei had lost close to a fifth over the preceding three months. Falls of that size produce a day that takes some back
  • What the market was waiting for was further easing from the Bank of Japan, which eventually came as negative rates in January of the next year
  • That measure backfired, strengthening the yen instead
  • The rebound from this bottom ran to December and broke again in early 2016

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 written from the sources listed above.