Cardano finished September 2026 at +25%. If you held only the best days, the return jumps to +72.4%, while missing them drops it to -27.6%. That tells you the month was driven by a handful of outsized sessions rather than smooth trend strength. The biggest upside day was 9/18/26 (+12.8%), and the roughest day was 9/15/26 (-6.9%) $ADA