OI explained

#2
I beg to differ with your explanation. What you have explained pertains to implied voltality. Voulme is the no. of contracts traded in a day and Open intrest referes to how many Calls or PUT's ( as applicable) traded for that strike price and expiration month.
 

bunny

Well-Known Member
#3
I beg to differ with your explanation. What you have explained pertains to implied voltality. Voulme is the no. of contracts traded in a day and Open intrest referes to how many Calls or PUT's ( as applicable) traded for that strike price and expiration month.
Nope, that not correct. Before going to the correct definition of volumes and open interest, let us understand that both these terms viz. 'Volume' and 'Open interest' are applicable to both futures as well as options.

Volume = No. of shares transacted over a period(ex: day).
If trader A sells 1 share to trader B, the volume is recorded as 1. If Trader B sells his 1 share to trader C, then the volume count increments to 2.

Open interest = No. of outstanding contracts for a particular contract(Future/option, strike price, expiry, underlying)
If trader A sell an option contract to trader B, then volume is recorded as 1(explained above) and Open Interest increases to 1. If trader B sells his option to trader C, the volume increments to 2 but Open Interest remains at 1.

Open interest changes only when positions are added/closed, irrespective of the no. of trades.
However, volume increases irrespective of change of open interest as and when the contract is traded.

I hope you got the point.
 
#5
May be you can help me out. How and where can I find the Active stocks with high opemn Intrest? Also where can I get additional informatyion on Greeks?

Thanks in advance.

Vasudevan
 
#6
Nope, that not correct. Before going to the correct definition of volumes and open interest, let us understand that both these terms viz. 'Volume' and 'Open interest' are applicable to both futures as well as options.

Volume = No. of shares transacted over a period(ex: day).
If trader A sells 1 share to trader B, the volume is recorded as 1. If Trader B sells his 1 share to trader C, then the volume count increments to 2.

Open interest = No. of outstanding contracts for a particular contract(Future/option, strike price, expiry, underlying)
If trader A sell an option contract to trader B, then volume is recorded as 1(explained above) and Open Interest increases to 1. If trader B sells his option to trader C, the volume increments to 2 but Open Interest remains at 1.

Open interest changes only when positions are added/closed, irrespective of the no. of trades.
However, volume increases irrespective of change of open interest as and when the contract is traded.

I hope you got the point.
Thanx,,

This is really OI Simplified

Can i put it this way: whenever a NEW (irrespective or strike) CALL or PUT is initiated in the market OI increases.

am i correct??

Thanx
 

sar79

New Member
#8
1. When open interest starts to flatten after a rise in both price and open interest, it is a warning sign that the peaks have been reached.
2. When open interest is high, the market is at record highs and there is a sudden drop in prices, it is a bearish sign. This is an indication of a reversal of trends. This is because traders who came into the market when it was rising could square off positions at the hint of a fall, leading to a downward spiral.
3. Open interest at record high in a bull market is another warning sign.
 

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