What are the key drivers behind the reported growth—price, volume, or mix? | IRWD (Aug 07, 2025) | Candlesense

What are the key drivers behind the reported growth—price, volume, or mix?

Key drivers behind the Q2 2025 growth for LINZESS

Driver What the release says How it contributed to growth
Volume (Demand) “Robust EUTRx demand growth of 10 % year‑over‑year.” The company explicitly points to a double‑digit increase in the amount of LINZESS sold in the United States. The 10 % YoY rise in demand is the primary engine of the higher net‑sales number. More prescriptions and higher fill rates translate directly into higher revenue.
Price “LINZESS net price was in‑line with our expectations for the quarter.” The price per unit did not change materially from prior expectations. Because the net price held steady, it did not act as a growth lever. The revenue uplift is therefore not price‑driven.
Mix The release does not mention any shift in product mix (e.g., a higher proportion of higher‑priced formulations, new indications, or channel‑mix changes). With no mix‑related commentary, we infer that mix played little or no role in the reported growth. The increase is attributed almost entirely to higher volume.

Bottom‑line answer

  • Volume (demand) is the clear driver of the 10 % YoY sales growth for LINZESS in Q2 2025.
  • Price was stable (in‑line with expectations) and therefore did not contribute to the growth.
  • Mix is not highlighted in the announcement, indicating it was not a significant factor.

Thus, the reported growth stems mainly from higher sales volume, not from price changes or mix effects.