I bought a mining contract in Jan 2017 and put my 0.5 bitcoin for mining with an assured return of 8 -9 % every month till 21 months.
All the return is given in the form of MCAP token which is currently trading at 5.2 $ on www.c-cex.com
You can sell MCAP on this exchange and covert it into bitcoin and buy any coin of your choice or keep it in MCAP itself.
MCAP has a potential to go up to 25$ in next 3 - 4 months.
If interested in investing and want monthly return feel free to reach out to me.
You can start with minimum investment of 0.044 Bitcoin.