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If we consider binary FX options in the market and estimate the market implied probabilities of certain FX rates occurring, would these resulting probabilities be risk neutral or real world?

I hear the term "market implied probability" being used in the work place estimated from binary options, I am not sure if this relates to risk neutral or real world?

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risk-neutral. Really the forward measure. The price of the binary is struck at $K$ is $$ Z P( F_T > K) $$ with $Z$ the discount factor and $F_T$ the forward, and $P$ the probability in the forward measure. If rates are deterministic, the forward measure and the risk-neutral measure will agree.

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