hey guys

I have active margin position long from 220$ .It's possible to put stop /222 $ for example/ on this position ?
Yes, put a SELL STOP order at $221.99 (for example) with the amount equal to your long position. When the highest bid price gets to $221.99 (or lower), it will execute a market sell order for the amount you specified.
And good long entry, by the way!
