ISLAMIC CALENDAR ANOMALY AND MARKET RETURN BEHAVIOR EMPIRICAL EVIDENCE FROM EIGHT ISLAMIC ECONOMIES

http://dx.doi.org/10.31703/gssr.2019(IV-IV).04      10.31703/gssr.2019(IV-IV).04      Published : Dec 2019
Authored by : Rana ShahidImdadAkash , IqbalMehmood , KashifHamid

04 Pages : 21-30

    Abstract

     This study is aimed to explore the Islamic calendar anomaly or lunar effect over the period of eleven years commencing from Zilhajj 1429 (January 2007) to Muharram 1440 (September 2018) on daily historical returns. This study has identified the essence of weak-form Efficient Market Hypothesis Fama (1965) in Pakistan, Turkey, Malaysia, Bangladesh, Iran, Egypt, Saudi Arabia, and Dubai. Moreover market return behavior and seasonal effects are identified by using the dummy regression model. It is identified that anomalous behavior is reality in long run aptitude in all Islamic economies and the average behavior is reflecting that markets have been inspired by the seasonal effects. Overall the market behavior reflects weak form of efficiency except Iran and Bangladesh.  It is identified that the Gregorian Calander is static but the lunar calendar is dynamic and go across all the weathers. Weathers and temperatures may affect perception and psychology of investor.

    Key Words

    Islamic Calendar anomaly, Efficient Market, Behavioral Finance

    Introduction

    Calendar anomalies i.e. day of the week effect, weekend effect and Month effect in the equity market has already been widely studied in the research of finance. The effect of Islamic Month illusion is a phenomenon that can be used to develop an anomaly for supporting the theory of market efficiency. In accordance, market efficiency indicates that future equity prices are not based on historical data Fama (1965) and it is a random behavior. This independency reflects that efficient market does not allow taking abnormal profits in any capacity. The equity market prices are dependent upon the equilibrium of supply and demand of aggregate equity. The calendar anomalies are the basic premise of capital market movements as per behavioral perspective. It may go against the EMH phenomena due to the violation of the week form of market efficiency. The researchers investigated that Islamic calendar anomalies move through Gregorian calendar anomalies. However, different countries and regional societies are being followed by their own calendar as well.  It may be on religion-based as the Jewish follow Hebrew calendar which depends on lunar-solar, the Christians follows Gregorian calendar which depends upon solar. Hindus and Chinese societies follow their own  calendar with their religious perspective. Christians celebrate charismas, Hindus celebrate Deepawali and Buddhists celebrate Vesak day. Muslims follow Islamic calendar which depends upon the lunar calendar. The lunar calendar linked to the Hijri calendar in accordance with Islamic ideology days and months. The religious days and months observed in Muslim society i.e. Ramadan, Muharram, Ashura, Eid - ul - Fitr and Eid – ul – Adha. Pakistan is the country of 97% Muslim population. 

    The Gregorian calendar is used as well as the Islamic calendar use across all equity market for economic activity. The Gregorian calendar is used due to the best coordination of economic activities with the rest of world. The Islamic calendar is used by date, events and marked annual holiday i.e. Eid events. The Muslim festivities and holidays are important with reference to economic activities and trading at the stock market. The equity markets are closed for 9 days at average level every year. The Islamic year is 11 days shorter as compared to Gregorian calendar year. It varies every year at most of a week and half in accordance with the Gregorian calendar. The Islamic months are i.e. Muharram, Safar, Rabi ul Awal, Rabi ul Sani, Jammadi ul Awwal, Jammadi ul Sani, Rajab, Shaban, Ramadan, Shawal, Zul Qa, ad and Zilhajj. Therefore, the calendar impact on equity returns for different countries may offer interesting insights regarding economic 

    activities. Chien et al. (2002) and Mills and Coutts (1995) have documented that the presence of calendar anomaly in an equity markets returns is actually question mark to the fair play of markets.  However, on the other hand, the researchers argued that the nonexistence of Islamic calendar anomaly. Arsad and Coutts (1997), Hamori (2001) and Mehdian and Perry (2002) and explained about the several investors well aware of seasonal patterns then there a seasonality must be disappeared.  Holden et al. (2005) also explored about dependence of calendar anomaly of investment strategy that is risky that materialize the calendar anomaly. Our study is an innovative perspective which will fill the gap to visualize the illusion and reality in eight Islamic economies across the Islamic months with a long time series of historical data. In first part of the study we briefly introduced calendar anomaly. The second segment is composed of literature review. The third part of this study consists of result and discussions. The last component elaborates the conclusion of this study. 

    Literature Review

    Fama (1970) proposed the efficient market theory, equity markets postulate a random walk. The equity prices which are not predictable and no investor can take the abnormal profits due to monopolistic access to information. Fama (1998) documented that the new theories which are based on trend and fashion of market due to existence of anomalies. Al – Khazali (2014) explored the effect of Ramadan from the period of 1996 – 2012. The risk-averse investor can attain the more utility which can be switched from non-Ramadan to Ramadan and confirmed the result of Bialkowski et al. (2012) of more returns which observed in Ramadan as compared to another period in a year. The positive mood resulting due to fasting enhances the health of the investor Saleh et al. (2005). The communal worship can have implication for herding behavior through maximization positive social mood (social interaction). The trading behavior with a positive mood of investor is used to produce greater returns within Ramadan Al-Hajieh et al. (2011). The Islamic month of the year effects a common anomaly examined in stock exchanges.  This effect regarding equity return varying and change held month to month. In General, it is also observed and believed that Ramadan and Moharram reflected higher returns by empirical findings as to another period of Islamic year. That is the basic logic to call it Ramadan effect and Moharram. Gultekin-Gultekin (1983) explored that existence of the effect of January which is examined. Abbes and Abdelhédi-Zouch (2015) investigate that the hajj pilgrimage can have an influence on the sentiments of investors and performance of equity market. The Islamic investor's sentiments are at optimal level after Zilhajj pilgrimage as before the religious event. The hajj pilgrimage is positively associated with the emotions of the investor's of Islamic countries, due to the believed to be closer to Allah.  

    It can lead to maximization of sentiment for the decisions of investment. Gavriilidis et al. (2016) examined US investors’ sentiment. The herding is significant and higher during Ramadan in most markets. The individuals are followed the behavioral norms and beliefs with reference to the activity of the society. Wasiuzzaman (2017) found that the returns are less as compared to the volatility level higher within the Hajj period. Gao (2005) documented calendar effects in China stock market which is not consistent later on in the sample period. The Chinese have February a year-end so; they can gain more returns in March and April. The daily patterns study presented that there are potential profits on Friday. Giovanis (2009) examined the seasonality and rejected most in all calendar effect. Recent attention with reference to the PSX (Pakistan Stock Exchange) as well to research if there is an existence of an anomaly in the PSX. 

    Data and Methodology

    We have used the daily Stock Indexes of   Pakistan, Turkey, Malaysia, Bangladesh, Iran, Egypt, Saudi Arabia and Dubai from the period of five years from Ramadan 2013 to Shaban 2018. and published data were available. 

    ?     R?_t=ln(P_t/(P_t- 1))  ×100                                                                                                (1)     

    Rt is the daily return on equity markets indexes of eight countries on day t. Pt and P t-1 are daily index.  To examine the relationship between variables econometrics techniques have been applied. To examine the calendar anomaly effect we employed the following OLS:

    R_t=??? ?_t  +  ??_1 D_1+?_2 D_2+?_3 D_3+?_4 D_4+?_5 D_5 ?+??_6 D_6+?_(7 ) D_7+?_8 D_8                               +  ?_9 D_9   +  ?_10 D_10  + ?_11 D_11  +  ?_12 D_12  + ?t                                                           (2)

    Where

     Rt = Daily returns

    D_1 = Ramadan

    D_2  = Shawal

    D_3 = Zul Qa, ad

    D_4 = Zilhajj

    D_5 = Muharram

    D_6 = Safar

     D_7 = Rabi ul Awwal

    D_8 = Rabi ul Sani 

    D_9 = Jamadi ul Awwal

    D_10 = Jamdul Sani

    D_11 = Rajab

    D_12 = Shaban

     ?t    = Error term


    If we are to analyze Ramadan than D_1 and the rest are 0. If it is Shawal that we are analyzing, then D_12 =1 and rest of the months would have ‘0’ as the dummy variable.  ? is a random error term. ?1 to ?12 co-efficient to use an OLS.


    Hypothesis

    This study will test the reality or illusion perception and the hypothesis of this study is as followed. 

    H0: Islamic Month effect does not exist in Islamic equity markets. 

    H1: Islamic Month effect does exist in Islamic equity markets.

    Results and Discussion

    The data of eight Islamic countries have been used to identify the level of historical volatility and mean-reverting behavior of returns with an Islamic calendar anomaly perspective for the period 2007 to 2018.  Figure 1 indicates the line graph of stock indices of Pakistan, Iran, Bangladesh, Egypt, Malaysia, Turkey, Dubai and Saudi Arabia for 2007 to 2018. 

    Figure 1. Stock Indices Patterns from the Year 2007-2018

    Below figure 2 indicates that in the year 2008 financial crises did not affect by the Islamic Calendar behavior.

    Figure 2.  Daily Return Behavior of Islamic Economies

    Figure 2 indicates the patterns indicated that Malaysia and Turkey moved together in the months of Jamadi ul Sani to Zilhajj. However, in the month of Ramadan, the behavior of the return remained positive but moved in negative direction immediately in the months of Shawal. This element justified the existence of calendar anomaly.

    Figure 3

    Cumulative Mean Return Behavior of Islamic Economies

    Table 1. Return versus Volatility for Each Islamic Month for 2007-2018

    Months

    Mean Return

    Volatility   (S.D)

    Rank

    Month

    Mean Return

    Rank

    Month

    Volatility

    (S.D)

    Ramzan

    0.001

    0.132

    1

    Rajab

    0.020

    1

    Shawal

    0.134

    Shawal

    -0.013

    0.134

    2

    Jamadi ul sani

    0.018

    2

    Ramzan

    0.132

    Zul Qa,ad

    -0.006

    0.132

    3

    Shaban

    0.016

    3

    Zul Qa, ad

    0.132

    Zilhajj

    0.007

    0.102

    4

    Zilhajj

    0.007

    4

    Jamadi ul sani

    0.115

    Muharam

    0.007

    0.105

    5

    Muharam

    0.007

    5

    Safar

    0.115

    Safar

    0.003

    0.115

    6

    Safar

    0.003

    6

    Rajab

    0.112

    Rabi ul awwal

    0.001

    0.082

    7

    Jamadi ul awwal

    0.001

    7

    Rabi ul awwal

    0.105

    Rabi ul sani

    0.000

    0.097

    8

    Rabi ul awal

    0.001

    8

    Muharam

    0.105

    Jamadi ul awwal

    0.001

    0.101

    9

    Ramzan

    0.001

    9

    Zilhajj

    0.102

    Jamadi ul sani

    0.018

    0.115

    10

    Rabi ul sani

    0.000

    10

    Jamadi ul awwal

    0.101

    Rajab

    0.020

    0.112

    11

    Zul Qa,ad

    -0.006

    11

    Rabi ul sani

    0.097

    Shaban

    0.016

    0.105

    12

    Shawal

    -0.013

    12

    Shaban

    0.082

    The month of Rajab, Jammad ul Sani and Shaban remained highest and returns for the month of Zul Qa, ad and Shawal remain lowest even negative. However, the volatility is seen on highest nodes in the month of Shawal, Ramzan and Zul Qa, ad. Rajab the most prominent regarding risk and return is Jamadi ul Sani and Zilhajj.

    Figure 4

    Month-wise Pattern of Mean Returns

    Figure 3 indicates that the mean returns are positive in Ramadan but highly negative in Shawal. The happiness due to spiritual attachment and attention towards the rituals in the Ramadan due to Islamic ideology. Our study is in line with the studies of (Seyyed et al. 2005; Al-Ississ, 2010; Bukhari et al. (2011), Bia?kowski et al. 2013; Halari et al. 2015 and Al-Khazali et al. 2017).  Mustafa (2005) indicated that Shawal effect was found in Karachi Stock Market. Further, Shah et al (2015) indicated that positive Shawwal effect and negative volatile in Shawwal. However, gradually the negative trend reduced in Zul Qa, ad, again in a study Mustafa (2005) identified that the month of Zul Qa, ad effects are found in all models being used. but the anomalous behavior got positive in the month of Zilhajj Muslim investor adopt bullish sentiments more in Zilhajj due to spending pattern in this holy month of pilgrimage (the Fifth Pillar of Islam) and sacrifice.   

    Figure 5

    .   Month-wise Pattern of Volatility

    It is because at Eid ul Adha Muslims required money to buy for slaughtering the cattle (Sunnat-e-Ibrahimi) instead to invest few days before in cattle business rather than equity market in the event of Zilhajj and Eid ul Adha. The cash flows turn down at the equity market and turn downs flow of funds and ultimately reduces return and volatility prior to this month. But our study is not in coherence with the studies of Shah et al. (2017), Bukhari et al. (2011) Zilhajj negative effect. However again a little downfall aroused in the month of Muharram as this month is also considered as grief month due to the event of Ashura in its early 10 days due to Shahadat Hazarat Imam Hussain (R.A).

    However, the same bearish trend is followed by Safar, Rabi ul awwal and Rabi ul Sani. In a research Azimi et.al. (2012) indicated that the findings show that there is a level of significance in the months of Muharram and Safar and Stock Return. Rabi ul awwal is the month of happiness with reference to Islamic ideology and believe as well as Ramadan. Rabi ul awwal is happiness month from Islamic months due to the birth of Prophet (P.B.U.H) Eid ul Milad ul Nabi and month of grief due to Prophet (P.B.U.H) has passed away in this month. However in Jamadi ul awwal and Jamadi ul Sani show rise. Rajab got peaked and sharp fall Shaban but Ramadan remained positive.

     The higher volatility is shown in the month of Ramadan, shawl and Zul Qa, ad and the lowest profile of volatility found in Rabi-ul-Awwal as also found by shah et al (2015) that returns were low volatility in the month of Rabi ul awwal but again there was a sharp rise in volatility from the month of Rabi ul Sani to Rajab. However, there was a decrease in volatility in Shaban.

    The seasonal effects are presented in Table 2 and 3. It is clear that a dummy value found negative of (month) coefficient would be proof of Islamic calendar month. Whereas the estimation of the coefficient via Equation 1 is specifying that which months have lower average returns than those obtain in any Islamic month effect.

    Table 2.  Tests for Seasonal Effects for Islamic Calendar Anomaly

     

    Pakistan

    Bangladesh

    Iran

    Saudi Arabia

    Variable

    Coeft

    P-value

    Coeft

    P-value

    Coeft

    P-value

    Coeft

    P-values

    C

    -0.014

    0.913

    0.001

    0.046

    -0.003

    0.096

    -0.000

    0.664

    Ramzan

    0.098

    0.506

    -0.001

    0.271

    0.003

    0.114

    0.000

    0.981

    Shawal

    -0.051

    0.724

    -0.001

    0.111

    0.003

    0.150

    -0.000

    0.977

    Zul Qa,ad

    0.035

    0.811

    -0.001

    0.087

    0.005

    0.020

    0.001

    0.443

    Zilhajj

    -0.001

    0.991

    -0.002

    0.024

    0.003

    0.184

    -0.000

    0.852

    Muharam

    0.008

    0.955

    -0.002

    0.040

    0.003

    0.110

    0.002

    0.197

    Safar

    0.128

    0.389

    -0.002

    0.042

    0.003

    0.129

    0.001

    0.541

    Rabi ul awwal

    0.236

    0.112

    -0.001

    0.167

    0.004

    0.056

    0.002

    0.306

    Rabi ul sani

    0.067

    0.648

    -0.002

    0.025

    0.003

    0.097

    0.000

    0.829

    Jamadi ul awwal

    0.006

    0.967

    -0.000

    0.686

    0.002

    0.323

    0.000

    0.826

    Jamadi ul sani

    0.037

    0.803

    -0.001

    0.313

    0.004

    0.054

    0.000

    0.840

    Rajab

    0.0577

    0.620

    -0.000

    0.258

    0.002

    0.133

    0.000

    0.992

    Shaban

    0.0571

    0.701

    -0.001

    0.304

    0.003

    0.105

    0.000

    0.748

    R-Sqaure (OLS)

    0.004

    0.007

    0.003

    0.004

    D-W Test

    1.669

    1.676

    2.078

    1.543

    B-G Test

    85.21 (0.000)

    81.89(0.000)

    0.3750 (0.977)

    165.93(0.000)

    LM(1) Test

    6.555 (0.000)

    6.299(0.000)

    4.8756(0.027)

    12.76(0.000)

    Significant at p< 0.05    

    We used OLS process to identify the season effects, DW test, BG test, and LM (1) tests are used to test the serial autocorrelation and heterokedasity.  

    There are negative signs for Shawl and Zilhajj means a negative seasonal effect and coefficient for 10 months have positive signs including Muharram, Ramadan for Pakistan but no coefficient is significant even at p<0.10.

     However, Bangladesh has a negative seasonal impact for all the months and the coefficient for Zul Qa, ad is significant at p<0.10 and Zilhajj, Muharram, Safar and Rabi ul Sani are significant at p<0.05 level. For Iran all coefficients are positive except constant term and Zul Qa, ad and Rabi ul a awwal are significant at (p<0.05) and Rabi ul Sani is significant at (p<0.10).  Saudi Arabian markets show that months of Shawal, Zilhajj are behaving negatively and all positive coefficient for all other months but no one is significant at p<0.05 level. 

    In Dubai, the seasonal effects show that only the coefficient for the month of Safar and all other months have negative coefficients but no one is significant at p<0.05 level. Table 3 indicates that in Dubai the seasonal effects shows that only the coefficient for the month of Safar is negative and all other months have negative coefficients but not significant. The Egypt market indicates that only Zul Qa, ad and Zilhajj months have positive coefficients and other remain months have negative coefficients but no one is significant at p<0.05.

     

    Table 3. Tests for Seasonal Effects for Islamic Calendar Anomaly

     

    Dubai

    Egypt

    Malaysia

    Turkey

    Variable

    Coeft

    P-value

    Coeft

    P-value

    Coeft

    P-value

    Coeft

    P-value

    C

    0.001

    0.685

    0.001

    0.560

    0.0000

    0.9770

    0.0010

    0.514

    Ramzan

    -0.001

    0.601

    0.000

    0.945

    0.0001

    0.8648

    -0.0019

    0.267

    Shawal

    -0.003

    0.357

    -0.001

    0.506

    0.0004

    0.6016

    -0.0002

    0.882

    Zul Qa,ad

    -0.003

    0.352

    0.000

    0.947

    0.0001

    0.9454

    -0.0015

    0.367

    Zilhajj

    -0.000

    0.813

    0.000

    0.685

    0.0004

    0.6673

    -0.0015

    0.358

    Muharam

    -0.000

    0.812

    -0.000

    0.907

    0.0007

    0.3821

    0.0001

    0.947

    Safar

    0.000

    0.842

    -0.002

    0.187

    0.0006

    0.5114

    -0.0014

    0.397

    Rabi ul awwal

    -0.001

    0.661

    -0.002

    0.269

    0.0001

    0.9374

    -0.0011

    0.509

    Rabi ul sani

    0.001

    0.674

    -0.000

    0.946

    -0.0002

    0.8312

    -0.0003

    0.839

    Jamadi ul awwal

    -0.002

    0.448

    -0.000

    0.895

    -0.0004

    0.6802

    -0.0006

    0.708

    Jamadi ul sani

    -0.001

    0.615

    -0.001

    0.451

    0.0004

    0.6083

    -0.0002

    0.889

    Rajab

    -0.000

    0.768

    -0.000

    0.678

    0.0002

    0.7758

    0.0011

    0.406

    Shaban

    -0.001

    0.746

    0.000

    0.645

    -0.0003

    0.7335

    -0.0012

    0.479

    R-Sqaure (OLS)

    0.0031

    0.005

    0.0030

    0.0051

    D-W Test

    1.7896

    1.6123

    1.8899

    1.7537

    B-G Test

    34.058(0.0000)

    118.17(0.0000)

    1.658(0.0695)

    46.75(0.0000)

    LM(1) Test

    2.6198(0.0000)

    9.0990(0.0000)

    1.67(0.070)

    3.5963(0.000012)

    Significant at p< 0.05    

    Malaysian markets indicate that only three months have negative coefficients and all other months have positive coefficients but no one is significant at p<0.05.  in Turkey the month of Rajab and Muharram have positive but all other months have negative but no one is significant at p<0.05. From these results, we found significant seasonal effects regarding Iran and Bangladesh in the sample while we found also evidence in favor of the month effects Dubai, Egypt, Turkey and Malaysia and to some extent for Pakistan and Saudi Arabia as well. 

    Conclusion

    This study is explored that Malaysia and Turkey moved together in Jamadi ul Sani to Zilhajj. However, in Ramadan, the behavior of the return remained positive but moved in negative direction immediately in Shawal. This phenomenon is reality because this element justified the existence of calendar anomaly. Muslim investor adopts bullish sentiments more in the Holy months and may lead to volatility. Syed and Khan (2017) also concluded that in Safar, Rabbi-ul-Awwal and Zil-hajj volatility in PSX market prevails but found no evidence of excessive or abnormal returns in an Islamic month. Hence they concluded that no evidence of Islamic calendar anomaly in PSX.  It is inferred that the seasonal effect of each month for each country that market is efficient except Iran and Bangladesh. We found also evidence in favor of the Islamic months' effects for Dubai, Egypt, Turkey, and Malaysia and to some extent for Pakistan and Saudi Arabia as well. Market Efficiency and the study Islamic calendar anomaly are more passionate against volatility and predictability of returns than the Gregorian Calnder because the Islamic calendar has rotation counts for different weathers and temperatures for the business effects and market dynamics whereas Gregorian calendar is static.  The Islamic calendar anomaly or lunar effect is more practical and remarkable than any other fixed calendar. The study of Sonjaya and Wahyudi (2016) also concluded that Ramadan effect is presented in ten Islamic countries but not showing persistent behavior, however they identified that all marketers are not efficient. Our study also concluded that anomalous behavior is reality in long-run perspective in all Islamic economies and the average behavior is reflecting that markets have been inspired by the seasonal effects. Moreover it also concluded that there is a risk and return tradeoff at positive position. Here random movements negate reality and accept illusion. However, mean returns and volatility express reality.  It is identified that the Gregorian Calander is static but the lunar calendar is dynamic and go across all the events and weathers. Weathers and temperatures may affect perception and psychology of investor. Finally it is concluded that investor psychology matters more than the price behavior and the issue is sub judicious to the subject of behavioral finance. 

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Cite this article

    APA : Akash, R. S. I., Mehmood, I., & Hamid, K. (2019). Islamic Calendar Anomaly and Market Return Behavior: Empirical Evidence from Eight Islamic Economies. Global Social Sciences Review, IV(IV), 21-30. https://doi.org/10.31703/gssr.2019(IV-IV).04
    CHICAGO : Akash, Rana Shahid Imdad, Iqbal Mehmood, and Kashif Hamid. 2019. "Islamic Calendar Anomaly and Market Return Behavior: Empirical Evidence from Eight Islamic Economies." Global Social Sciences Review, IV (IV): 21-30 doi: 10.31703/gssr.2019(IV-IV).04
    HARVARD : AKASH, R. S. I., MEHMOOD, I. & HAMID, K. 2019. Islamic Calendar Anomaly and Market Return Behavior: Empirical Evidence from Eight Islamic Economies. Global Social Sciences Review, IV, 21-30.
    MHRA : Akash, Rana Shahid Imdad, Iqbal Mehmood, and Kashif Hamid. 2019. "Islamic Calendar Anomaly and Market Return Behavior: Empirical Evidence from Eight Islamic Economies." Global Social Sciences Review, IV: 21-30
    MLA : Akash, Rana Shahid Imdad, Iqbal Mehmood, and Kashif Hamid. "Islamic Calendar Anomaly and Market Return Behavior: Empirical Evidence from Eight Islamic Economies." Global Social Sciences Review, IV.IV (2019): 21-30 Print.
    OXFORD : Akash, Rana Shahid Imdad, Mehmood, Iqbal, and Hamid, Kashif (2019), "Islamic Calendar Anomaly and Market Return Behavior: Empirical Evidence from Eight Islamic Economies", Global Social Sciences Review, IV (IV), 21-30
    TURABIAN : Akash, Rana Shahid Imdad, Iqbal Mehmood, and Kashif Hamid. "Islamic Calendar Anomaly and Market Return Behavior: Empirical Evidence from Eight Islamic Economies." Global Social Sciences Review IV, no. IV (2019): 21-30. https://doi.org/10.31703/gssr.2019(IV-IV).04