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Original Articles

¿Cómo afectan cambios en el consenso y la dispersión en la valoración de activos?

Changes in consensus and dispersion: how do they affect the price of stocks?

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Pages 251-274 | Received 21 Jul 2003, Accepted 19 Sep 2005, Published online: 15 Jan 2014
 

RESUMEN

Existe evidencia que muestra cómo la información contenida en las predicciones de consenso es eficientemente reflejada en los precios, sin embargo parece que el mercado falla en ajustar instantáneamente la nueva información sobre el beneficio de la empresa. Si esto es así, se podrían diseñar estrategias rentables basadas en las revisiones del consenso. En este trabajo se intenta indagar bajo qué condiciones las modificaciones del consenso afectan a la rentabilidad de los títulos. Los resultados obtenidos muestran que las acciones cuyas variaciones del consenso han sido más positivas obtienen rentabilidades anormalmente elevadas siempre que la dispersión de la estimación de consenso sea baja. Por tanto, la dispersión otorga credibilidad al cambio de expectativas propuesto por los analistas financieros.

ABSTRACT

There is empirical evidence in the finance literature showing that information incorporated in the consensus estimate of earnings per share (EPS) is efficiently reflected by share prices while the market is quite inefficient in discounting consensus shifts. In this situation, it is possible that investors earn excess returns by trading on information related to earning revisions of financial analysts. The question of whether in all conditions EPS revisions convey valuable information motivates this article. Empirical results show that stocks with best EPS monthly change and lowest dispersion earn higher abnormal returns. Therefore, dispersion gives credibility to the prospective changes of a firm estimated by financial analysts.

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