How to quickly spot starting point and direction for traiangular arbitrage

on the 6 price of 3 currency pairs?

This is not difficult at all and given time everybody can figure it out. But if no clue is given it takes time to do it right and it’s easy to make mistake under time pressure.

Someone correct me if i’m wrong. But I believe an easier way is to use the two interbank quotes to calculate a similiar quote to what the dealer is giving you, then compare.

Problem Example:

Banks Quote: A/B & A/C

Dealer Quotes: B/C.

To figure out if there is arbitrage make an B/C quote from the Bank A/B and A/C quotes.

Then compare to the two B/C quotes.

I just try it one way; if I lose I try it the other way.

Thirty seconds, tops.