Stock Calculator

Determines what stocks and cash customers hold on a given date given a list of transactions.

The transactions are supplied in a CSV file in the format specified below.

Calculation Explanation

For the Stock purchase(sale) transactions, calculator deducts(increases) the cash balance of the customer by the value of the transaction increment(decrement) the holdings for that stock
For a deposit(withdrawal), calculator increases(decreases) the customers cash balance by the given amount
For a dividend the customers cash balance is increased by the given amount
All decimal values are calculated to 4 decimal places with RoundingMode.HALF_UP if necessary
If some line is failed to parse it is simply is ignored
Always report a customers cash balance even if it is zero
Stock holdings of zero is not included in the output
Customers can be overdrawn

Input File Format

Account,Date,TxnType,Units,Price,Asset

Where:

Account - A string of 8 alphanumeric characters
Date - In YYYYMMDD format
TxnType - A 3 character string, one of
- BOT Stock Purchase
- SLD Stock sale
- DIV Dividend payment
- DEP Deposit
- WDR Withdrawal
Units - The number of units bought or sold to 4 decimal places
Asset - A four character string
- For BOT/SLD transactions, this is the stock purchased/sold
- For DIV transactions this will be the stock for which the dividend was issued
- For DEP/WDR transactions it will be CASH
Units - Number of units purchased/sold to 4 decimal places
Price - Price per unit to 4 decimal places. For CASH transactions this will always be 1.

Example input file

NEAA0000,20170101,DEP,100,1,CASH
NEAA0000,20170102,BOT,20,2.123,VUKE
NEAA0000,20170102,BOT,30,1.500,VUSA
NEAA0000,20170201,DIV,0.2024,1,VUKE
NEAA0000,20170201,SLD,20,2.000,VUSA 
NEAA0000,20170201,BOT,10.512,3.3350,GILS
NEAB0001,20161201,DEP,10000,1,CASH
NEAB0001,20170301,WDR,5000,1,CASH

Holdings given a date of 2017/02/01

Current Holdings on 20170201:
    NEAA0000:
        VUSA    10.0000
        VUKE    20.0000
        GILS    10.5120
        CASH    17.6849
    NEAB0001:
        CASH    10000.0000

User manual

In order to perform calculations the file and date should be selected first.

On a click calculate button the statement of the customer current holdings is printed out.

aneksamun / stock-calculator