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+ n+ x& y& x3 ]2 }$ |& _( wA market hypothesis stating that investors and traders react: Q G# N' O, c. X& l" K) Z
disproportionately to new information about a given security.
5 p' P# \* v" f7 f1 UThis will cause the security's price to change dramatically,1 h Y- i" a8 c, ~% J( s* F
so that the price will not fully reflect the security's true8 {$ M, c3 ^7 M3 S% b
value immediately following the event. Typically, the price
( Y4 p* s7 d9 N: hswing from overreaction is not long lasting, as the stock
7 V+ K2 U; Y4 |# b- g" U& Wprice will tend to return back to its true value over time.
5 e: Y: ?1 [& L% ]; ~* [* P I' Q9 o. v, a
The overreaction hypothesis is not consistent with the* b: U" ~( R& w$ A% ]5 ] n
efficient market hypothesis. |