hi Anil,
Many times we come across statements from experts that new shorts have been created in the nifty (or some counter) or fresh long positions have been initiated in the index (or some counter). How do we know this because for every short there is a long. So when some analyst states that there are huge short positions in a counter / index how does he come to this inference. Something to do with OI? P elaborate
Dear Esse,
Futures:
It is generally observed increase in premium alongwith increase in price is considered as long positions getting added. As those going longs are not minding premium and ready to pay for it.
So if OI of futures get increased alongwith price increase, it is construed as long addition going on.
If OI increases with increase in discount, then short have been added.
Options:
Generally here, lot of IV (implied volatility) reading do the real trick...
Although many take OI addition only as a inference.
Like increase in OI of puts and market moving higher, is construed as put getting written, and participants(smart writers) expecting market will not fall.
So you can watch intraday OI movements of that options and you will get clue, whether OI is getting increased or decreased on that fall or rise.
Similarly a huge OI addition in CALL will tell, participants are expecting a resistance there and market will not go beyond that point easily...
But you need to read everything with pinch of salt. Bcoz some of options from smart players come under strategy. Like bull spread or bear spread. So one get confused with OI added at both strikes.
Secondly, one can have feel of what is happening to IV's of that strikes with OI addition. Like increase in IV of options tells, its buying of that option going on.