Touch/No-Touch Option
FinPricing offers:
Four user interfaces:
- Data API.
- Excel Add-ins.
- Model Analytic API.
- GUI APP.
FinPricing provides valuation tools for the following touch products:
| 1. Touch Option Introduction | 
A touch option is the sort of FX option that promises a payout once the price of 
an underlying asset reaches or passes a predetermined level. Touch options allow investors to choose the target price, 
time to expiration, and the premium to be received when the target price is reached.
There are only two possible outcomes. If the barrier is broken a trader will receive the agreed full payout. 
If the barrier isn’t broken, the trader will lose the premium paid to the broker. Unlike vanilla 
FX call options and FX put option, 
touch options allow investors to profit from a simplified yes-or-no market forecast. Like regular 
FX call option and FX put options, most touch option trades can 
be closed before expiration for a profit or a loss depending on how close the underlying market or asset is to the 
target price.
This type of option is popular with traders who believe the price of an underlying asset will pass a certain level 
in the future, and for those who aren’t sure whether the higher price level is a sustainable one. Speculative market 
participants like to use touch options as bets on a rising or falling exchange rate.
Clients, who prefer to hedge, trade touch options as a rebate in order to secure themselves compensation in case 
their strategy doesn’t work out. Touch options are also often integrated into structured products to increase returns 
on forward and interest rates. They become especially useful during times of market volatility when prices might be 
uncertain.
An investor who chooses no touch option type is trading on the assumption that the price of their selected asset will 
fail to reach a specific level before the end of the expiry period. The investor may trade touch options, if he believe 
that the price of their selected asset will reach a specific level before the end of the expiry period.
Touch rebate options are characterized by one or two barrier levels, as well as by a cash rebate associated with crossing the barrier. Their payoff depends on whether the FX spot rate ever crosses the barrier level during the specified period of the option. Based on this period, touch rebate options come in three types: American, European, and partial window. Each type has eight different payoff functions: one touch up/down, no touch up/down, double no touch, double one touch, one touch up/down no touch down/up. The American type is the most popular one in the market.
The barriers of a touch option can be continuous or discrete. The touch rebate
options have three different types: European type, American type, and partial window
type. Most of the touch rebate options in the market are of the American type. Each
barrier type has eight different payoff functions.
If you are using a close-form solution, i.e., modified Black-Scholes, you may need to apply Vanna-Volga adjustment
to the Black-Scholes theoretical value. One way to look at this is that it tries to correct for the impact of the smile
on the B-S price. It is based on the construction of locally replicating portfolios whose associated hedging
costs are added to corresponding B-S prices to produce smile-consistent values. In practice, Vanna-Volga pricing does 
a very good job of matching the market by virtue of the necessary substantial tuning.
If you are using an advanced numerical solution that captures volatility skew, the Vanna-Volga adjustment is not needed.
| 2. Forex Market Convention | 
One of the biggest sources of confusion for those new to the FX market is the market convention. We need to make clear the meaning of the following terms in the forex market first.
| 3. Payoffs and Conditions | 
Depending on the barrier types, the touch option can be divided into the following categories. The barrier conditions for different types of touch options are given by

The payoff currency could be either the cash (base) or the asset (underlying).

| 4. Related Topics |