According to market research, the global binary options market is expected to reach around $1.85 billion by 2033. 

This suggests that starting a binary options trading business can still be a profitable opportunity in 2026.

However, success is not guaranteed. The industry faces strict regulations, trust issues, and strong competition, making it difficult to scale without strong compliance and transparency. 

Many platforms also struggle with user acquisition due to past scams and low public trust.

So, while the opportunity exists, profitability depends heavily on how you build the binary option trading software, rather than focusing only on short-term growth.