Stocks trading under $5 on the NASDAQ or NYSE. These are "safer" because they must follow strict reporting rules.

Similar to Robinhood, it offers a slick mobile interface and zero commissions for exchange-listed penny stocks. What You Need to Know The Two Types of Penny Stocks

The gold standard for penny stocks. They allow trading on most "OTC" (Over-the-Counter) stocks with zero commission.

Most major online brokers have eliminated the $4.95 or $6.95 trade fees of the past. These platforms allow you to buy penny stocks for free:

Stocks that trade on decentralized networks. These are often highly speculative and have less transparency. The Hidden Cost: The Spread