- Livello del Sottostante
- Lock-Up Period
- Login
- Long
- Long Leg
- Long-range planning
- Look
- Lotto
- Lotto Minimo
- LOW
- Low price
- Low user
- M1
- M2
- M3
- Macd
- Mail order
- Mail order house
- Mailing
- Mailing list
- Mailing shot
- Make or buy
- Mall (Electronic mall)
- Manager
- Manufacturing
- Maquette
- Margin Call
- Margine Cauzionale
- Margine di Mantenimento
- Margine Operativo Lordo (MOL)