dear satya
these are questions that i cannot answer. may be someone else can help
you.
in technical analysis and trading, nothing is absolute. this depends on what ur trading system is. the motto is when in doubt, look left. that is look at past action. if it was absolutely flat, and there is a sudden jump in OI by even 15% thats a lot. theres no absolute figure. u have to take everything in context. if theres a demerger or takeover announcement and OI goes up by 40%, is that abnormal? of course not.
see the report from hindu business line. they have not used any adjective for 30% to 5.45%. many type its the media and analysts who use these adjectives.
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Tata Engineering's May future contract was active with open interest
jumping by 30.33 per cent. The spot closed at Rs 158.70, higher by Rs
3.25. The May contract closed at Rs 158.60 whereas, the June contract
closed at Rs 159.35. Open interest in June contracts jumped by 35.48
per cent.
Index options: The most actively traded contract was the May 950 call
(ITM). The call, which has been appreciating for the past three days,
closed at Rs 16.45. Open interest increased by 5.45 per cent. The May
960 call, which is at-the-money, appreciated to Rs 10.20 and open
interest increasing by 6.16 per cent.
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for me theres only one abnormal OI that is 95% of marketwide limit...thats when the stock is barred from further FNO trading...no such thing happens for index future.
2. i look at these roll over data on cnbc. otherwise i dont bother about them. i get the derivatives data from sharekahan and nse and continuously monitor open interest. if during the end of the month the next months open interest increases, there is a healthy position (no indication of direction is available from here). i dont know if thats roll over or new contracts initiated. for me the effect is the same...interest in the instrument has gone up or down.
