List of Articles Trend and cyclical volatility Open Access Article Abstract Page Full-Text 1 - Algorithm trading, trend and cyclical volatility and stock returns: a band-pass filter and PMG-ARDL approach Elahe Rezazade Mehdi Fathabadi ُSeyedeh Atefeh Hosseini kazem Haronkolaei https://doi.org/10.71849/ECO.2025.1209195