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1920s Stock Market Mania

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1920s Stock Market Mania

Read the background and fictional investor records. Then use evidence to explain how speculation and buying on margin increased risk. The records are invented for this worksheet but reflect practices of the period.

Background: A market caught up in the boom

During much of the 1920s, the United States experienced economic growth and rapid changes in consumer life. Many people became interested in stocks, hoping to profit as prices rose. Some bought shares on margin: they paid part of the cost themselves and borrowed the rest from a broker. If a share price fell, an investor could lose the money already invested and still owe the loan. A broker might demand more cash (a margin call) or sell the shares. Rising prices encouraged more buying, which could push prices higher still. This feedback loop helped fuel speculation, but share prices did not always reflect the strength of the companies behind them. In October 1929, stock prices plunged. The crash damaged confidence and wealth, but it was not, by itself, the sole cause of the Great Depression, which had multiple causes.

Record

Investor A: 10 shares bought at $100 each; paid $500 and borrowed $500

Investor B: 10 shares bought at $100 each; paid $1,000 in cash

Later share price: $60; 10 shares now worth $600

Investigate the mania

Use the background and investor records as evidence. For written responses, explain your reasoning rather than giving a one-word answer.

1.Which statement best explains why buying on margin could magnify an investor's losses?

The investor borrowed part of the purchase price and still owed the loan when the shares fell.
The investor automatically received extra shares when prices dropped.
The broker guaranteed that the investor would recover the original payment.
The investor paid for shares only after they increased in value.

2.Select the two statements supported by the background about forces that could feed speculation and the risks of borrowing to buy shares.

Rising prices could encourage more people to buy, helping push prices higher.
Borrowing to buy shares could expose investors to losses and margin calls.
Every rising share price proved that the company's business was improving.
The federal government guaranteed that stock prices would not fall.

3.True or false: The background says the 1929 crash was the sole cause of the Great Depression. Explain your choice in one sentence.

4.In the fictional investor records, calculate Investor A's equity after the share price falls to $60. Equity is the shares' current value minus the amount still owed.

5.Compare the two investors after the price falls to $60 per share. How much has each lost relative to the original $1,000 share purchase, and why is Investor A's remaining equity especially vulnerable?

6.Complete the first step in the cause-and-effect chain in your own words: Share prices rise → more investors buy, sometimes with borrowed money → .

7.Complete the next step in the cause-and-effect chain in your own words: A sharp price fall can lead to .

8.A newspaper advertisement from 1928 declares, “Stocks only go up—borrow now and share in the boom!” Identify two warning signs of speculative thinking in this fictional claim.

9.Match each term to its meaning.

Buying on margin
Margin call
Speculation

A broker's demand for more money or collateral after a fall in value
Taking financial risks in hopes of profiting from price changes
Buying shares partly with borrowed money

10.Why should a historian treat the fictional newspaper advertisement and the fictional investor records as limited evidence about the whole economy? Give one reason for each source.

11.In a brief evidence-based response, explain how optimism, borrowing, and rising prices could combine to create a market bubble. Include one limit or qualification to your explanation.