Implemented
Financial Instruments 
Bonds 
Supported
calculations:
 Current Yield
 Holding Period Return
 Yield To Maturity
 Duration
 Modified Duration
 Convexity
 Price
 Clean price (v.2.4)
 Accrued interest (v.2.4)

A
bond is a longterm contract under which a borrower
agrees to make payments of interest and principal, on specific
dates, to the holder of the bond. Bonds are classified into four
main types: treasury, corporate, municipal and foreign depending on
the issuing side. Each type differs with respect to expected return
and degree of interest. When calculating the value of a bond, a
discount rate is used which is the bond's market rate of interest.
The discount rate is also called yield. 
Futures 
Supported
calculations:
Supported base assets:
 Currency
 Equity
 Commodity

The futures
contract is an agreement between two parties to buy or sell an asset
at a certain time in the future. The types of contracts are
standardized in order the exchange trade of Futures contracts to be
possible. The Futures asset is similar to the Forward asset type
(the latter lacks standardization and is generally not traded on an
exchange). Both are particularly simple derivatives. WSFA supports
futures on currency, equity, and commodity. 
Options 
Supported
calculations:
Supported base assets:

Options
are one of the most complex financial instruments. The options are
" derivative" financial instruments  they are always
based on another asset.
Generally, the option represents the right but not the obligation to
perform certain financial activity  it is upon the option holder to
decide whether to execute the right or not.
WSFA supports the most widely used types of options  American and
European. The underlying asset type supported are currency, equity,
futures.
WSFA can also calculate the implied volatility of an asset. This
means it can derive the volatility that the optionunderlying asset
should have, so that the price of the option is at some known level.

Implemented
Business Instruments 
Time
Value of Money 
Supported
calculations:
 Present Value
 Future Value
 Present Value of Annuity
 Future Value of Annuity
 Number of Payments
 Payment Amount

Financial
decisions often involve situations in which someone pays money at
one moment of time and receives money at some later time. Dollars
that are paid or received at two different points of time are
different and this difference is recognized and accounted for by the
time value of money analysis. In fact it is true that, of
all concepts used in finance, time value of money is the most
important one. 
Cash
Flows 
Supported
calculations:
 NVP, Net Present Value
 MIRR, Modified IRR
 Payback Period
 Discount Payback Period
 Equivalent Annuity

The
cash flows calculations are the most frequently
used method to analyze different investment opportunities. A given
investment can be described by the different payments that will take
place  negative amounts for the money You should invest and
positive amounts for the future inflows from the investment. How can
we choose between two or more investment opportunities, is the
investment worth it's risks  Wall Street FA can help You with the
calculations needed to solve these problems quickly.

Implemented
Statistics Instruments 
Statistics 
Supported
calculations:
 Mean
 Standard deviation
 Coefficient of Variance
 Skewness
 Kurtosis
 Coefficient of Correlation
 Intercept (Linear regression)
 Slope (Linear regression

WSFA
supports the most common statistical analysis calculations. To
conduct these calculations, the user should enter a list of values
for which he or she wants statistical information. Statistical
analysis consists of single series analysis  computation of mean,
standard deviation, etc. Some methods of finding statistical
dependence between two series are also supported  coefficient of
correlation and regression analysis. 