Momentum investing in bull run

Hi guys
In this bull run where valuations are sky high is it worth doing momentum investing

by investing in those companies who are hoping to post good next quarter result
And then by exiting that stock after the result

I am planning to put 10-15% of my money in such stocks
Is this allocation appropriate

In my current portfolio manappuram is going to post good numbers as per the management

I am very newbie and I am not able to cope with the speed at which market is moving

I will highly appreciate ur valuable inputs

Also I am not sure if this post will get locked by admin as it’s against the value investing

Ignore me if this post is not valid

Thanks

Mahesh

As rightly said by great ramdeo Agarwal in
2018 will be Few rockets ,
Possibility of vertical boom for next 10-15 years