Static CTR uses a fixed, one-size-fits-all CTR curve based on general position benchmarks (e.g., position 1 = ~32% CTR, position 2 = ~18%, position 3 = ~11%, etc.). It's useful as a starting point but doesn't account for your site's unique performance characteristics.
Dynamic CTR builds a CTR curve from your own data. It groups your keywords into position buckets (1–3, 4–6, 7–10, 11–20, 21–50, 51–100) and calculates your site's actual median CTR within each bucket. This means the benchmarks reflect how your audience interacts with your listings, accounting for your brand recognition, snippet quality, and SERP features. Dynamic CTR is significantly more accurate and is what we use in production analysis.