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Prior to 2010, [1] standard equity option naming convention in North America, as used by the Options Clearing Corporation, was as follows: For example, an Apple Inc AAPL.O call option that would have expired in December 2007 at a $122.50 strike price would be displayed as APVLZ in old convention (AAPL071222C00122500 in new convention).
A ladder is also similar to a condor, the key difference being that a condor has an additional option; for example, a long call condor is similar to a long call ladder but with an extra call at a higher strike. [4] A ladder's Greeks are generally similar to a strangle. [1]
The ratio represents a proportion between all the put options and all the call options purchased on any given day. The put/call ratio can be calculated for any individual stock, as well as for any index, or can be aggregated. [2] For example, CBOE Volume and Put/Call Ratio data is compiled for the convenience of site visitors. [3]
Call option: A call option gives its buyer the right, but not the obligation, to buy a stock at the strike price prior to the expiration date.
For example, the Apple mini-options symbol is AAPL7. [6] Examples: AAPL7 131101C00470000. The above symbol represents a mini call option (10 shares) on AAPL, with a strike price of $470, expiring on Nov 1, 2013. AAPL 131101C00470000. The above symbol represents the standard call option (100 shares), with the same strike and expiration date.
A Canary option is an option whose exercise style lies somewhere between European options and Bermudian options. (The name refers to the relative geography of the Canary Islands .) Typically, the holder can exercise the option at quarterly dates, but not before a set time period (typically one year) has elapsed.