Sort:  

Derivatives are inventions of the crooked financiers. I'm not sure bitcoin needs this shit.

Options are more likely as insurance sort of for trader.

keep it up

nice picture

Coin Marketplace

STEEM 0.06
TRX 0.28
JST 0.048
BTC 68106.19
ETH 2000.21
USDT 1.00
SBD 0.49