chartist
Longman Dictionary of Contemporary English OnlineLDOCE Onlinechartistchart‧ist /ˈtʃɑːtəstˈtʃɑːr-/ noun [countable] FINANCE someone who studies past patterns in share prices and other market movements to say how they might change or move in the futureChartists get clues to future price changes by studying price and volume trends.
who someone Business past prices share patterns studies in