This depends on how you see a particular stock. if you analyse the past performance of the stock and how they are doing now then you can take a relatively measured view on any stock. If you put a heavy weight on future expectations regardless of what the company is doing now then you end up with a complete different picture.
Hayleys fibre recorded a continues decline in their revenue over tha past many years to date and the most worrying point is the revenue is still declining. Their main market segments are shrinking. Their profit margins are continue to come down meaning escalating cost.
Compared to Nation Lanka though two different industries, Nation Lanka experienced huge troubles with the Golden Key saga and they experienced loss of customer deposits, decline in the value of land portfolios, debtor writeoffs, etc. In 2014 and 2015 they went for two rights issues in serch of money to safeguard the lost capital due to many losses as above. In the FY 2015/16 they start producing profits with a growth quarterly. The interest income has gone up more than 50%. They have entered into the lucrative micro finance business too which yields them above average yields. On top of that their negative book value turned to positive. With this track record any investor can paint the future of this stock.
Therese are the main differences I can see in these two stocks.
In summary Hayleys Fibre shows a continuous decline in all key performance parameters up to now where as Nation Lanka once was nearing to bankruptcy have shown signs of recovery with a promising growth.
For your information I have positively written on the following stocks too. if you have time just search typing the company name.
Abans Electricals, Laxapana Batteries, TAFL, GRAN, BFL, Swisstek, Kelany tyres, ACL Cables, Kelani Cables, Stafford Hotels, Piguses Reef, Royal Ceramics, etc.