Darling Ingredients (DAR) is down roughly 3% in Thursday, April 9, 2026 trading, with the move tied primarily to renewed investor concern around weak renewable diesel profitability. The pressure centers on margins at Diamond Green Diesel (DGD), Darling’s major renewable fuels earnings driver, as market participants point to softer credit economics and broader biofuel/renewable diesel sentiment.

Renewable diesel returns can swing quickly with movements in D4 RIN pricing, state clean-fuel credits, and feedstock costs. Recent market commentary flagged another downtick in renewable diesel margins, and the tape action suggests investors are re-pricing near-term DGD contribution lower, even without a new company-specific announcement today. (tipranks.com)

DAR’s equity story has been increasingly tied to the variability of renewable diesel margins at DGD alongside the durability of its core ingredient businesses. When renewable diesel margins compress, the market typically assumes weaker near-term cash generation and less upside from tax-credit/mandate tailwinds, which can drive outsized daily moves in the stock relative to the broader market. (s204.q4cdn.com)

Traders will monitor daily signals for renewable diesel profitability—especially D4 RIN direction, any updates to renewable volume obligations timing, and read-throughs from peer commentary on biofuel margins. With DAR’s next earnings date approaching later this month, investors may also position defensively until management provides updated segment expectations and DGD margin/volume color. (investors.darlingii.com)