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2. Ladder (option combination) - Wikipedia

   en.wikipedia.org/wiki/Ladder_(option_combination)

   A long put ladder is also called a bear put ladder. [8] A short put ladder is also called a bull put ladder. [9] A ladder can be seen as a modification of a bull spread or a bear spread with an additional option: for instance, a bear call ladder is equivalent to a bear call spread with an additional long call. A bull put ladder is equivalent to ...

3. Finite difference methods for option pricing - Wikipedia

   en.wikipedia.org/wiki/Finite_difference_methods...

   As above, the PDE is expressed in a discretized form, using finite differences, and the evolution in the option price is then modelled using a lattice with corresponding dimensions: time runs from 0 to maturity; and price runs from 0 to a "high" value, such that the option is deeply in or out of the money. The option is then valued as follows: [5]

4. Lattice model (finance) - Wikipedia

   en.wikipedia.org/wiki/Lattice_model_(finance)

   Delta and gamma, being sensitivities of option value w.r.t. price, are approximated given differences between option prices – with their related spot – in the same time step. Theta , sensitivity to time, is likewise estimated given the option price at the first node in the tree and the option price for the same spot in a later time step.

5. Greeks (finance) - Wikipedia

   en.wikipedia.org/wiki/Greeks_(finance)

   Long options have a positive relationship with gamma because as price increases, Gamma increases as well, causing Delta to approach 1 from 0 (long call option) and 0 from −1 (long put option). The inverse is true for short options. [11] Long option delta, underlying price, and gamma. [12] Gamma is greatest approximately at-the-money (ATM) and ...

6. Call options: Learn the basics of buying and selling - AOL

   www.aol.com/finance/call-options-learn-basics...

   Call options explained: How they work. Call options are “in the money” when the stock price is above the strike price. The call owner can exercise the option, putting up cash to buy the stock ...

7. Call vs. put options: How they differ - AOL

   www.aol.com/finance/call-vs-put-options-differ...

   Put option: A put option gives its buyer the right, but not the obligation, to sell a stock at the strike price prior to the expiration date. When you buy a call or put option, you pay a premium ...