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Fractional Shares: Buying Part of a Share, and the Catches

A fractional share is less than one whole share. How dollar-based orders, dividends and splits work, and the limits on voting, order types and transfers.

By Published 3 min read

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Key takeaways

  • A fractional share means owning less than one full share of a stock or other security.
  • Orders can usually be placed in dollar amounts or share amounts, but each broker handles them differently.
  • Fractional owners generally receive dividends and take part in splits in proportion to the fraction they own.
  • Brokers may limit which securities, order types and trading hours are available, and may aggregate orders rather than fill them in real time.
  • You may have no voting rights, may face fees, and generally cannot transfer fractional shares to another firm.

Some share prices run into the hundreds or thousands of dollars, which once meant a beginner with $100 could not buy a single share. Some brokers now sell fractional shares: slices of one share. The idea is simple, but the SEC's investor bulletin on fractional share investing lists several ways they can behave differently from whole shares, and those differences vary from firm to firm.

How a fractional share works

The SEC defines it plainly: a fractional share is when you own less than one full share of a stock or other security. Its example: if a stock trades at $1,000 and you have $100, fractional investing lets you buy 0.1 of a share.

Orders can generally be placed two ways:

Order style Example at a $1,000 share price What you get
Share amount Buy 0.5 shares 0.5 shares, for about $500
Dollar amount Buy $500 worth About 0.5 shares

A dollar-amount order fixes what you spend and lets the number of shares vary with the price. That is what makes fractions convenient for investing a fixed amount on a schedule, the approach described in dollar-cost averaging.

Gains and losses work the same way, scaled down

A fraction moves in step with the whole share. Suppose you buy 0.25 of a share at $400, paying $100.

Share price later Value of your 0.25 share Change
$480 (+20%) $120 +$20
$320 (−20%) $80 −$20

The percentage gain or loss is identical to owning whole shares. Fractions make a position smaller, not safer.

Dividends and splits

The SEC explains that fractional owners still receive dividends and take part in corporate actions such as stock splits and reverse splits, generally in proportion to the fraction of a share they own. Its example: owning 0.75 of a share when the company pays a $10.00 dividend per share brings you $7.50. Brokers differ in the details, so check how yours handles these. How dividends work and stock splits explain the events themselves.

The catches the SEC lists

Availability. Not every brokerage firm offers fractional shares, and those that do may not offer them to every customer. Some allow fractions only in stocks, others in stocks and ETFs; some limit them to particular stocks, such as those in the S&P 500.

How orders are filled. Some firms fill fractional orders in real time like whole shares. Others aggregate them: they collect customers' fractional orders through the day and execute one or more large orders to fill them. The SEC notes that the method can affect the price you pay or receive.

Order types and trading limits. Some firms allow only market orders for fractions. The SEC also lists minimum order sizes or dollar amounts, limited or no after-hours trading, and orders accepted only on certain platforms, such as the firm's mobile app. With only market orders available, you cannot set a maximum price for a fractional purchase. The SEC's bulletin on order types explains why that matters: a market order generally executes immediately, but its price is not guaranteed, and it often differs from the last-traded price.

Voting rights. You may have none. Some firms allow proxy voting on fractions with special procedures; some do not allow it at all.

Fees. Some firms charge fees for fractional transactions. A flat fee weighs far more on a small order: a hypothetical $1 fee is 10% of a $10 purchase but 0.1% of a $1,000 one, so a stock would have to rise 10% just to cover the cost of the small order.

Liquidity. If a stock becomes illiquid, so do the fractions. The SEC notes some firms say they do not guarantee the liquidity of fractional shares even when whole shares are liquid, so you could have difficulty selling.

Transfers. You generally cannot transfer fractional shares to another brokerage firm. If you move your account, you may have to sell them first, which in a taxable account means a sale that may produce a capital gain or loss.

Questions to ask your broker

The bulletin's practical advice comes down to asking before you buy:

  1. Which securities can I buy in fractions?
  2. Are fractional orders filled in real time or aggregated, and how is the price set?
  3. Which order types and trading hours apply to fractions?
  4. Do fractions carry voting rights, and how are dividends paid?
  5. Are there extra fees, and what happens to fractions if I transfer my account?

What a brokerage account is covers choosing a firm in general. Learn to Trade Stocks Beginner, one of our education apps, lets you practise orders and track positions with a virtual balance rather than real money. The investing basics hub lists the related guides.

Good to know

Frequently asked questions

What is a fractional share?
Ownership of less than one full share. The SEC's example: if a stock trades at $1,000 and you have $100 to invest, fractional share investing could let you buy 0.1 of a share.
Do fractional shares pay dividends?
Generally yes, in proportion to what you own. The SEC's example: if you own 0.75 shares and the company pays a $10.00 dividend per share, you would receive $7.50. Check how your broker handles dividends and other corporate actions.
Can you transfer fractional shares to another broker?
Generally not. The SEC notes that if you move your account to a different brokerage firm, you may have to sell any fractional shares first. In a taxable account, that sale can produce a capital gain or loss.
Can I place a limit order for a fractional share?
It depends on the broker. The SEC notes some firms allow only market orders for fractional shares, and some also set minimum order sizes or restrict after-hours trading of fractions.

Sources

  1. Fractional Share Investing – Buying a Slice Instead of the Whole Share (opens in a new tab)Investor.gov, U.S. Securities and Exchange Commission — accessed
  2. Understanding Order Types – Investor Bulletin (opens in a new tab)Investor.gov, U.S. Securities and Exchange Commission — accessed

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