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Fractional Shares

In short

Buy partial shares — invest any dollar amount regardless of share price

A share of a high-priced stock can cost several hundred or several thousand dollars. Fractional-share trading lets an order be sized in dollars instead of whole shares — $100 of a $1,000 stock buys one-tenth of a share — making it possible to fully invest a fixed budget regardless of what a single share costs.

Fractional-share trading lets an order be sized in dollars rather than whole shares, so a brokerage internally allocates the corresponding portion of a share to the account. This removes the 'odd lot' problem where a fixed budget doesn't divide evenly into whole shares, leaving cash sitting uninvested, and it makes high-priced stocks accessible to a smaller budget. Fractional shares typically carry the same economic rights as whole shares on a pro-rata basis — dividends are usually paid proportionally — though corporate actions, voting rights, and transferability between brokers can work differently for fractional positions. This is a platform- and broker-dependent feature: SnapTrade and most modern brokerage integrations support it, but availability varies by broker and by security.

Related concepts

  • Market OrderA market order says 'buy this stock right now at whatever price it's selling for.' You get filled immediately but might pay slightly more than you expected, especially for less liquid stocks.
  • Buying PowerBuying power is how much you can trade with right now. In a cash account, it's your available cash. In a margin account, it can be 2× your cash because the broker lends you money to buy more.
  • Portfolio RebalancingIf your target is 60% stocks / 40% bonds but stocks rally and become 75%, rebalancing sells some stocks and buys bonds to restore the 60/40 split. It's automatic discipline — sell high, buy low.