ISSN: 2278-4853 Vol 9, Issue 6, June, 2020 Impact Factor: SJIF 2020 = 6.882
Asian Journal of Multidimensional Research (AJMR)
https://tarj.in
16
AJMR
Tot-RT
6
66.67
25
45.45
5
50.00
12
20.69
Tot-LT
3
33.33
30
54.55
5
50.00
46
79.31
The t-values on AARs interpreted by taking the maximum percentage of days having
statistically significant t-values for all the three portfolios under both the models. This reveals
that the t-values on AARs are significant for less than 20% of days and for the remaining more
than 80% of the days they are not significant. This shows that AARs are not significantly
different from zero for most of the days. This indicates that market is efficient based on AARs.
However, t-values on CAARs are interpreted by taking minimum percentage of days having
statistically significant t-values for all the three portfolios under both the models. For example,
95.08%, 85.25% and 90.16% of the days t-values on CAARs are statistically significant under
both the models. This indicates that t-values for CAARs are significant for more than 52 days
out of 61 days (more than 85%).
Therefore, we infer that CAARs are greater than zero for more than 85% of the days and anyone
who had bought these shares either before or after the quarterly earnings announcement and held
them would have earned abnormal returns that are not attributable to market factors. Therefore,
we conclude that there is no empirical evidence to show that Indian stock market is semi-strong
form efficient during the June 2014 quarter. The results are similar to Mallikarjunappa and Iqbal
(2003, 2013), Iqbal and Mallikarjunappa(2007, 2009, 2010, 2011) who showed that for the
quarter June 2001 Indian stock market is not semi-strong from efficient.
CONCLUSION
Based on the Runs test statistics on AARs, we accept the hypothesis that the AARs occur
randomly and there is no trend. This prevents traders from making profits based on daily trading.
The sign test statistics shows that for the event window of 61 days computed values falls within
the acceptance region. Therefore, we conclude that there is no significant difference between the
number of positive and negative AARs. Based on t test values on CAARs, we infer that anyone
who had bought these shares either before or after the announcement of quarterly financial
results and held them would have earned abnormal returns that are not attributable to market
factors. Therefore, the study concludes that the reaction of Indian stock market to the
announcement of quarterly financial results is very slow. These results also supports the results
of the studies conducted by Jones and Litzenberger (1970), Litzenberger, Joy and Jones (1971),
Brown and Kennelly (1972), Jones (1973), Joy, Litzenberger and McEnally (1974), Latane,
Jones and Rieke (1974), Foster (1977), Watts (1978), Foster, Olsen and Shevlin (1984),
Rendleman, Jones and Latane (1987), Freeman and Tse (1989), Bernard and Thomas (1989,
1990), Ball and Bartov (1996) in the U.S.A and Obaidullah (1990), Chaturvedi (1999, 2000a,b,
2001), Mallikarjunappa (2004a, 2004b), Iqbal and Mallikarjunappa (2003, 2007a,2007 b, 2008a,
2008b, 2008c, 2009, 2010, 2011) Iqbal (2005, 2014) in India and Hawaldar (2016) in Bahrain.
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