Who would you consider to be the more proficient trader?

Trader A only trades one instrument/pair and gains 10%.
Trader B trades multiple instruments/pairs and gains 10%.

Argument for Trader A:
Trader A only needs 1 instrument to get that 10%.

Argument for Trader B:
Trader B is a versatile trader and is likely to be less affected should any market condition changes.

10% is a low barrier to proficiency

It's impossible to definitively name the most proficient trader, as success in trading is subjective and dependent on various factors like trading style, risk tolerance, and market conditions. However, some traders are consistently cited as highly successful and influential

It would be the one who know how to protect its capital.

B of course

trader A
same profit but less stress ^^

B. Trading multiple instruments make s you much safer in the long a run...

Trading many pairs doesn’t automatically mean less risk — it can actually add complexity. You have to manage more setups, watch more news, and avoid overtrading. On the flip side, trading only one pair means you’re more exposed if that market becomes choppy or flat. At the end of the day, both styles can work. What matters is not how many pairs you trade — it’s how consistent and disciplined you are. The real test is: can either trader keep making that 10% month after month?