Clean Energy Fuels fell 38.6% in a year. Montauk Renewables rose 44.1%.

Same industry

CLNE against four same-industry peers, a year at 100

CLNE is down 38.6% in a year. Montauk Renewables is up 44.1%, UGI 15.7%, Sempra is down 13.3% and OPAL Fuels 28.8%. All four did more. Weekly closes, Oct 10, 2025 = 100, on a log scale, so the same percentage move is the same height on every line.

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CLNE −38.6%. Montauk Renewables +44.1%, UGI +15.7%, Sempra −13.3%, OPAL Fuels −28.8%. Weekly closes, Oct 10, 2025 = 100, log scale.

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End-of-day closes (Databento EOD), the last close of each week. The four peers are the largest US-listed companies by market value in CLNE’s SEC industry (Gas & Other Services Combined) with a year of closes. It shows what the closes did; a move here is not a cause, a forecast or a call.

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