Friday, 4 September 2009

Average returns of Sensex are highest on Fridays

Last October, investors witnessed two of the biggest falls in the history of sensex — both on Fridays. But a Friday isn't all about fall. Did you know the index's best 'average daily gains' actually come on the last day of the trading week?

Data shows that average daily returns for sensex is not only the highest on Fridays but nearly two to four times more than on days such as Tuesday, Thursday or even Monday. This is based on an analysis of daily gains (in percentage terms) since September 1, 2003 when sensex was first calculated on freefloat market capitalisation method. In fact, when it comes to the top 30 daily gains for the 30-share benchmark in the last five years, Friday features the highest number of times (7), that is nearly 1 out of 4 occurrences.

So, what drives this Friday effect? "(This) data is driven by levels of market activity rather than anything else i.e. trading volumes tend to be higher in the second half of the week (Wed-Fri ) and that results in more deals being closed on such days. Brokerages like to close trades before the week ends because if they wait for the following week the trade sometimes gets away," said Saurabh Mukherjea, India head of Noble Group, a British investment bank.

Experienced market participants have had memorable Fridays. Sensex gained over 1,100 points on January 25, 2008, another 750 points on October 31, 2008 and a half a dozen of occurrences when sensex rose 400-puls points in the last four years. Average daily returns for sensex on Friday are the highest at 0.20%, followed by Wednesday (0.12%), Tuesday (0.11%), Monday (0.06%) and Thursday comes last returning a mere (0.05%), data shows.

Thursday's performance has not surprised market experts . In last 4 years, investors have seen sensex lose between 400-800 points on at least 10 occasions on a Thursday. "One of the reasons that can be attributed to lower returns on Thursday can be impact of F&O Expiry which is normally on the last Thursday on the month," said Chetan Majithia, head (Equities) at Crisil.

Source: EconomicTimes

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DISCLAIMER: The author is not a registered stockbroker nor a registered advisor and does not give investment advice. His comments are an expression of opinion only and should not be construed in any manner whatsoever as recommendations to buy or sell a stock, option, future, bond, commodity, index or any other financial instrument at any time. While he believes his statements to be true, they always depend on the reliability of his own credible sources. The author recommends that you consult with a qualified investment advisor, one licensed by appropriate regulatory agencies in your legal jurisdiction, before making any investment decisions, and that you confirm the facts on your own before making important investment commitments.