user63397: I know, we should hold them in cold storage, etc, but I can't know for sure whether Bitfinex will credit the B2X on a 1:1 ratio for BTC holders.
Thank you for your answers! 
David

user3029: Most exchanges will not credit you the same day but make you wait a certain amount of time. Your best bet is to withdraw and extract it yourself if you want 2x coins quickly.

user62910: There's no 2X fork anymore now, since it has been called off

63397: <p>I know, we should hold them in cold storage, etc, but I can't know for sure whether Bitfinex will credit the B2X on a 1:1 ratio for BTC holders.</p>

<p>Thank you for your answers! </p>

<p>David</p>
 3029: <p>Most exchanges will not credit you the same day but make you wait a certain amount of time. Your best bet is to withdraw and extract it yourself if you want 2x coins quickly.</p>
 62910: <p>There's no 2X fork anymore now, since it has been <a href="https://twitter.com/lopp/status/928309280507351040?s=09" rel="nofollow noreferrer">called off</a></p>
