Lecture 5: Interests & Annuities Flashcards
Simple Interest Equation
Simple Interest = P x r x t
P - principal
r - interest rate
t - time in years
Principal
The amount being borrowed
Maturity date
The specific date on which the principal amount of the debt is due- along with interest
Interest Rate
Often published as % APR (annual percentage rate) which is normally prorated to daily/monthly rate
Fixed Interest Rate
Does not change overtime, therefore can be calculated using a simple interest formula 
Overnight policy rate (OPR)
Set by bank of Canada for banks to lend money to each other at the end of the day (to balance all transactions, i.e. money transferred in vs. money transferred out)
Bank Rate
Set by bank of Canada for financial institution to borrow overnight (one day loan) from the central bank
Prime Rate
Set by financial institutions, based on bank of Canada’s policy rate, which is been passed down to borrowers
(It is the lowest rate of interest at which money may be borrowed commercially)
Variable Interest Rate
Can change over time – usually using the prime rate as a benchmark
(Interest rate on a loan or security that fluctuates over time)
Actual Variable Rate
Offered to borrowers and typically includes a plus/minus percentage spread, depending on the borrower’s credit worthiness
Price of a Loan (4 Factors)
POLICY RATE (same as OPR) - set by central bank(to lend money to each other at the end of the day (to balance all transactions, ie money transferred in vs. out)
BANK RATE: set by Bank of Canada for financial institutions who wish to borrow overnight (one day loan) from the central bank
PRIME RATE: set by financial institutions based on Bank of Canada’s policy rate, which is then passed on to borrowers (the lowest rate of interest at which money may be borrowed commercially)
VARIABLE RATE: +/- percentage spread based on credit score
Fixed Income Interest
Provides a fixed rate of return for a set timeframe. Is generally low & payable at set intervals (I.e. monthly, quarterly or annually)
Common types of Fixed Income Products
GIC- Guaranteed Investment Certificates (sold by Canadian banks and trust companies. Insured up to 100k. Minimum term is usually 12 months. Principal returned to the lender at maturity date.)
Savings Account- (Interest bearing deposit account held at a bank or other financial institutions. Safe & pays a moderate interest rate.)
Bonds- (Short term debt backed by Canadian Gov’nt. Min. purchase is $5k, in $1k denominations. Some larger corps also issue bonds. Interests b’tween 1.4%-3.5%
Compound Interest
Earning interest on both the principal & accumulated interest, which can result in significant growth over time
- Requires that principal & accumulated interest must be reinvested over Time based concepts of time value of money
Compound Interest Calculation
A = P(1 + r/n) nt (exponent)
A - accumulated amount
P - Principal
r - interest rate
t - time in years
n - number of times interest is compounded in a year