The ratio of the change in an option price to the decrease in time to expiration. Since options are a wasting asset, their value declines over time. As an option approaches its expiry date without being in the money, its time value declines since the probability of that option being profitable (in the money) is reduced. Also known as "theta" and "time-value decay". Time … [Read more...]
Restricted Stock Options [Explained]
Restricted stock, also known as letter stock or restricted securities, refers to stock of a company that is not fully transferable until certain conditions have been met. Upon satisfaction of those conditions, the stock becomes transferable by the person holding the award. Another type of restricted stock is a form of compensation granted by a company. Typically, the … [Read more...]
Check List of Things for Trading in Stocks
1.) If the lead stochastic crosses over the 20 band consider this a possible buy signal, and if it crosses below 80, then it would be a sell signal. 2.) Use several charts in different time periods for each stock you are trading. 60, 13, 8, 3, and 1 minute charts will enable you to see the bigger picture. If the 60, 13, and 8 minute charts are in an uptrend, look at the 3 / … [Read more...]
Heath-Jarrow-Morton Framework
The Heath-Jarrow-Morton framework ("HJM") is a general framework to model the evolution of interest rate curve - instantaneous forward rate curve in particular (as opposed to simple forward rates) The key to these techniques is the recognition that the drifts of the no-arbitrage evolution of certain variables can be expressed as functions of their volatilities and the … [Read more...]
Heston model: The Overview
The Heston model is a mathematical model describing the evolution of the volatility of an underlying asset . It is a stochastic volatility model: such a model assumes that the volatility of the asset is not constant, nor even deterministic, but follows a random process. n the Heston model, we still have one asset (volatility is not considered to be directly observable or … [Read more...]