May 20 2026

This is Kvak's very own version of the Sibbett's Demand Index (SDI), a classic leading volume-price oscillator developed by James Sibbett that measures buying versus selling pressure by cleverly combining Price + Volume data. Kvak's non-repainting version adds modern firepower: Heiken Ashi prices plus Pre + Post Smoothing to reduce noise while keeping the signals sharp. Download it here: post1295582936.html#p1295582936