i was reading other posts and found the above. post if you scroll 3/4th you will find that coinbase has given credit to folks to make them whole again. not sure by how much but seems to be fair to me. i hope they do the same for us.
i will paste the relevant text below: OLD stuff not about 6/21 crash
###############OLD stuff not from me
have two updates from support...
We’re writing regarding a margin call that occurred on May 21st.
After further review, this sell was due to a margin call of your margin position on the LTC/BTC order book. A series of large sell orders were placed on the LTC/BTC order book on May 21, 2017 around 1am UTC causing a large price decline which triggered a margin call of your position when your maintenance margin ratio was exceeded.
The trading engine and margin call functioned as designed. The large price decline was due to the relatively low liquidity on the order book at that time.
As a gesture of goodwill, we are issuing a courtesy credit of xxx.xxxxxxx LTC. Please bear in mind that this is a one-time credit. Trading margin carries the inherent risk of margin especially, especially on thinly traded order books such as LTC-BTC.
Have a good week.
GDAX Support Team
And the second......
Also, to follow up. Your account has 0.xxxxxxxx BTC default (amount owed). This occurred because during the margin call, funds sold were insufficient to cover all of the margin funding used.
You can either sell a portion of the LTC credit to BTC or can deposit 0.xxxxxx BTC, whichever you prefer, and then please write us back to let us know. We’ll then be able to get an engineer to clear this default on the account so that you can trade again.
Thanks again for your patience while we looked into this.
GDAX Support Team
I don't understand very well.
I get back almost what I had invested, as if acknowledging a mistake, but I have to pay the margin call.
In my case, since it is not too high a quantity, it is likely that he will take it as it is and close the case at this point.
What is your opinion?