The Nasdaq crash of April 2000: Yet another example of log-periodicity in a speculative bubble ending in a crash

Anders Johansen and Didier Sornette
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Anders Johansen: UCLA
Didier Sornette: UCLA, Univ. of Nice and CNRS

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Abstract: The Nasdaq Composite fell another $\approx 10 %$ on Friday the 14'th of April 2000 signaling the end of a remarkable speculative high-tech bubble starting in spring 1997. The closing of the Nasdaq Composite at 3321 corresponds to a total loss of over 35% since its all-time high of 5133 on the 10'th of March 2000. Similarities to the speculative bubble preceding the infamous crash of October 1929 are quite striking: the belief in what was coined a ``New Economy'' both in 1929 and presently made share-prices of companies with three digits price-earning ratios soar. Furthermore, we show that the largest draw downs of the Nasdaq are outliers with a confidence level better than 99% and that these two speculative bubbles, as well as others, both nicely fit into the quantitative framework proposed by the authors in a series of recent papers.

Date: 2000-04, Revised 2000-05
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Published in European Physical Journal B 17, 319-328 (2000).

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