The Journal of Finance

The Journal of Finance publishes leading research across all the major fields of finance. It is one of the most widely cited journals in academic finance, and in all of economics. Each of the six issues per year reaches over 8,000 academics, finance professionals, libraries, and government and financial institutions around the world. The journal is the official publication of The American Finance Association, the premier academic organization devoted to the study and promotion of knowledge about financial economics.

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The Effects of Stock Splits on Bid‐Ask Spreads

Published: 09/01/1990   |   DOI: 10.1111/j.1540-6261.1990.tb02437.x

ROBERT M. CONROY, ROBERT S. HARRIS, BRUCE A. BENET

This paper examines the effects of stock splits on bid‐ask spreads for NYSE‐listed companies. Percentage spreads increase after splits, representing a liquidity cost to investors. These spread increases are directly related to decreases in share prices following splits and can explain part, but not all, of the observed increase in return variability after splits. The evidence thus suggests a liquidity cost of stock splits that must be weighed against any other perceived benefits of splits. Such a liquidity cost may validate that stock splits are a signal of favorable information about the firm.