• oenny stock,
• lenny stock,
• -enny stock,
• 0enny stock,
• pwnny stock,
• psnny stock,
• pdnny stock,
• prnny stock,
• p4nny stock,
• p3nny stock,
• pebny stock,
• pemny stock,
• pejny stock,
• pehny stock,
• penby stock,
• penmy stock,
• penjy stock,
• penhy stock,
• pennt stock,
• penng stock

The adjective form of the word "penny stock" is "penny-stock".

The plural form of the word "penny stock" is "penny stocks".

The singular form of the word "penny stock" is "penny stock". The word does not change in its singular form.