{"type":"video","version":"1.0","html":"<iframe src=\"https://www.loom.com/embed/fba5a33ec2834c879dd079f442e10f77\" frameborder=\"0\" width=\"1116\" height=\"837\" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>","height":837,"width":1116,"provider_name":"Loom","provider_url":"https://www.loom.com","thumbnail_height":837,"thumbnail_width":1116,"thumbnail_url":"https://cdn.loom.com/sessions/thumbnails/fba5a33ec2834c879dd079f442e10f77-89f1322deb8ffa34.gif","duration":216.8798,"title":"Efficient Backfilling Strategies in Amibroker","description":"In this video, I walk you through my approach to setting up backfilling in Amibroker, specifically using IQfeed. I keep my database disconnected during backtesting to avoid unnecessary updates, and I only perform backfills on weekends to maintain control and prevent database corruption. I use a minimal analysis file solely for backfilling, which allows me to efficiently update around 20,000 symbols for 10 years of one-minute bars in less than two hours. I recommend following this method to streamline your backtesting process. If you have any questions or need further clarification, feel free to reach out!"}