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Warm-Up

An item usually sells for X dollars. It is marked down to Y dollars. Interpret each of the following algebraic expressions in this context.

  1. |Y - X|
  2. |Y - X|/X
  3. 100|Y - X|/X

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8-3 Stock Market Data Charts

Objective: To interpret/create stock bar and candlestick charts

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Stock Bar Charts

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Example 1:

Which day had the highest price? Which day had the lowest price?

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Example 2:

Approximately how many shares of Goldpoint Manufacturing Co. were traded over the 5-day period?

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Example 3:

Use the information below to construct a 1-day stock bar chart for Brown Armor Corp.

Open: $40.10

Close: $39.79

High: $40.65

Low: $39.39

Volume: 44,500,000

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Candlestick Charts

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Example 4:

Explain the difference between the market action on September 8 compared to September 9 shown in the candlestick chart for Sept 7 - 11.

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Example 5:

What was the approximate difference between the highest price and the lowest price for the week shown in the candlestick chart for Sept. 7 - 11?

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Homework:

p.481(2-6,9-12,14)