For example, expect the cost of a new roof with tile to be more than wood shingles. However, heavier and longer-lasting shingles of a low cost material can cost as much or more than the low-end of a more expensive roofing material, such as tile.he cost of a new roof with asphalt is among the lowest of any popular material and they carry a moderate lifespan. Advantages: 1  Average 20+ year lifespan. 2  Low cost.
Characteristics of Security Indexes. 1. A price weighted series is the average of the stocks' prices in the series. It is calculated by adding together each stock price and dividing the total by the number of stocks in the series.
The following are popular indexes, each measuring a different segment of the market: Dow Jones Industrial Average-This is the oldest and most well-known stock market index, made up of 30 actively traded blue-chip stocks. The Dow tends to be used as an indicator of market trends, rather than as an index against which to measure performance. Standard & Poorâs 500-Stock Index (S&P 500) - measures the performance of 500 widely held common stocks of large-cap U.S. companies.