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A market hypothesis stating that investors and traders react; L1 ^( w5 e$ C! w6 u) p
disproportionately to new information about a given security.* Y% \, S( X3 b8 \
This will cause the security's price to change dramatically,
. L. `. ^. C0 x! u* u$ |+ m3 S$ `so that the price will not fully reflect the security's true9 B) E1 t1 C' s
value immediately following the event. Typically, the price; p2 I% Y, c& [' }
swing from overreaction is not long lasting, as the stock" x6 p6 P, ]2 u
price will tend to return back to its true value over time.
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The overreaction hypothesis is not consistent with the. L( W; y, e4 G$ ~6 V7 `. k; F
efficient market hypothesis. |