Glossary • October 7, 2026
Penny Stock
Stock trading at a very low price, typically under $5 per share. Often highly speculative, volatile, and thinly traded with high fraud risk.
A Penny Stock is a stock trading at a very low price, typically under $5 per share (technically the SEC definition). Penny stocks are highly speculative, often thinly traded, illiquid, and prone to manipulation and fraud.
Formula
Penny Stock Definition (SEC):
- Price < $5 per share (loosely; some exceptions)
- Often issued by small companies with limited operating history
- Traded OTC (over-the-counter) or on smaller exchanges
Example
A biotech startup trading at $0.50/share with 100 million shares (market cap $50 million) is a penny stock. Geovax (GEVO has traded as a penny stock at various times. Marathon Digital (MARA trades near penny stock levels when crypto is down. Many penny stocks are complete scams or shell companies.
How to Interpret It
- High risk, high reward: A penny stock can go from $1 to $10 (10x) or to $0.01 (loss of everything).
- Wide spreads: Bid-ask spreads are often 5-20%, meaning poor execution if you buy or sell.
- Low volume: Hard to buy or sell large positions without moving the price.
- Manipulation risk: "Pump and dump" schemes are common; promoters hype stocks then dump their shares.
- Fraud risk: Many penny stocks are fraudulent or operating illegally.
Limitations
- Penny stocks are vehicles for speculation, not investing; most lose money.
- Brokers often charge higher commissions on penny stock trades.
- Due diligence is nearly impossible; financial disclosures are sparse or falsified.
- Once you buy, you might not be able to sell at any price (complete illiquidity).
Related Terms
- Microcap Stock — stocks with market cap < $500 million
- OTC Markets — over-the-counter markets where penny stocks often trade
- Pump and Dump — illegal scheme common with penny stocks
- Blue-Chip Stock — opposite of penny stock; large, stable