The gain/loss calculation above does not include dividends received. So if dividends are included, BAuto is another stock which gain slightly in year 2018.
KESM, Inari, Leon Fuat, Hevea & Prolexus all declined substantially. Hevea is the stock which used to have >100% paper gain but it has now become loss-making. The only consolation is that I don't hold a lot of Hevea shares.
Inari which has bonus issue in 2018, also dropped more than 30%.
Besides, Stock X also dropped a lot in that year, almost 30%.