Portuguese stocks that've decreased the most in a year

It's unlikely that you care that much about a global conglomerate's all-time low back when it was a penny stock 40 years ago. Therefore, the 52-week lows might be a better measure for getting a gauge on a company's recent performance and whether this moment represents a good opportunity to buy into it or not. Still — if an asset's at its 52-week low — it's definitely recommended you do your own research to find out exactly why before pumping any hard won cash into it.