If you think stop hunting is taking place that would mean the broker is controlling the prices to target the stop price.
FXCM’s prices on NDD forex execution are set by price competition from multiple liquidity providers, and not determined by FXCM. Each liquidity provider streams through a direct feed of indicative buy and sell prices to FXCM. FXCM's No Dealing Desk Price Engine selects the best buy price and the best sell price, which result in the best available spread. The price is then streamed to the platform where you can then place orders.
Competition between the liquidity providers ensures NDD prices are market-driven and fair.
It's worth noting FXCM uses the same base price for dealing desk execution on Mini accounts (before adding the spread markup) as the base price we use for our NDD execution (before adding the commission). If you are trading on dealing desk execution and your trading style exposes us to more risk than we're comfortable with, FXCM may, at our sole discretion and at any time, change your execution type to NDD. This is how FXCM can comfortably offer both execution options without having to resort to dealer intervention practices such as requotes.
*Risk Disclaimer: Losses can exceed deposited funds.