Mosaic Withdraws 2026 Phosphate Guidance After Q1 Loss

NEW YORK, May 24 —

Mosaic Company reported a Q1 2026 net loss and withdrew its full-year phosphate production guidance, per a May 11 8-K filing, driving shares to their lowest level in more than five years. Both events arrived in the same document, at the start of the fiscal year. That sequence has sharpened a question investors have been sitting with for several quarters: whether Mosaic at 5-year lows is a value entry or the bottom of a sustained decline.

The Guidance Vacuum

Pulling full-year phosphate production guidance is not a minor revision. It is a statement that management cannot see clearly enough through 2026 to commit to a volume number. For a commodity producer, output volume is the baseline input for every margin model. Without it, analysts cannot construct reliable earnings forecasts or read capex timing. The number is gone and no replacement was offered.

The timing is the sharper issue. Guidance was withdrawn in the same filing that disclosed a net loss, at the start of the fiscal year. Companies pull guidance when the outcome range is wide enough that any committed number would mislead. Mosaic reached that threshold in Q1 — which means the visibility problem is structural, not seasonal.

A Deteriorating Quarter-to-Quarter Pattern

The Q1 net loss did not arrive without antecedents. In Q4 2025, Mosaic reported EPS of $0.22 against a consensus estimate of $0.44, a miss of 50%. That followed a Q3 2025 beat of $1.04 versus $0.95 estimated. Q3 was the outlier. The pattern since — a 50% earnings miss, then an outright net loss — is a straight line down, not a blip.

Revenue Growth That Is Not Producing Cash

Trailing twelve-month revenue of $12.43 billion reflects 14.4% year-over-year growth. The margin math immediately undercuts that. Gross margin sits at 13.3%, thin for a commodity business where pricing moves in cycles. Free cash flow for the trailing period was negative $290 million. Mosaic grew the top line while burning cash — and the number that determines financial durability is the second one.

The combination of thin margins, negative FCF, and a segment with no forward volume guidance is the structural problem. The guidance withdrawal makes any recovery judgment harder, not easier.

What the Multiple Does Not Resolve

At $22.51, Mosaic trades at a forward P/E of 11.5x against a consensus analyst price target of approximately $26.98. BMO Capital Markets maintained its rating on MOS after Q1 but lowered its price target to $31.00. The sell-side, broadly, is not recommending exits. But the BMO cut is instructive: maintaining a rating while cutting the target is how a bank signals that the prior number can no longer be defended without abandoning coverage.

A forward P/E of 11.5x looks cheap, and in a normalized fertilizer environment it probably is. The problem is that forward P/E requires reliable earnings estimates, and withdrawn guidance erodes those estimates at the base. The multiple is only as good as the numbers behind it. Right now, those numbers are unverifiable.

What Changes the Thesis

One insider transaction sits alongside this picture. CEO Bruce Bodine exercised options for 13,704 shares and 5,780 shares on March 9, 2026, alongside a tax-withholding disposition of 7,668 shares at $26.92 per share, roughly $206,000. Option exercises from scheduled grants carry less informational weight than open-market purchases. The accompanying tax sale mutes any directional read further. The transaction is routine, not a bullish commitment at a price Mosaic has since moved well below.

Three things could change the picture near-term: restoration of phosphate guidance with credible volume targets, free cash flow turning positive, or a sustained move in fertilizer pricing that frames the guidance withdrawal as a timing call rather than a structural break. Without those, the recent record — Q4 miss, Q1 net loss, negative FCF, and no forward volume guidance — points where the stock has already gone.

The $26.98 consensus target was set before the guidance was withdrawn. It may not yet account for a Q1 loss with no forward volume commitment. Run the free The Mosaic Company deep-dive →

Basis Report does not hold positions in securities discussed. This is not investment advice.

Frequently Asked Questions

Why did Mosaic withdraw its 2026 phosphate guidance?

Mosaic withdrew full-year 2026 phosphate production guidance in a May 11, 2026 8-K filing that also disclosed a Q1 net loss. The company did not provide a replacement timeline, leaving analysts without a volume figure for the core segment. A net loss and pulled guidance arriving together, at the start of the fiscal year, points to a structural visibility problem — not a seasonal one.

Is MOS stock a buy after the Q1 2026 results?

MOS trades at $22.51, a forward P/E of 11.5x, and roughly 16% below the $26.98 consensus analyst price target. BMO Capital Markets maintained its rating but cut its target to $31 after Q1. The 11.5x multiple must be set against negative trailing free cash flow of $290 million and withdrawn guidance. Without forward volume estimates, earnings models rest on assumptions.

What is Mosaic Company's free cash flow?

On a trailing twelve-month basis, Mosaic generated negative $290 million in free cash flow, alongside a gross margin of 13.3%. Revenue over the same period was $12.43 billion, reflecting 14.4% year-over-year growth — growth that has not yet translated into positive cash generation.

Why is Mosaic stock hitting 5-year lows?

MOS shares fell to 5-year lows after Mosaic reported a Q1 2026 net loss and simultaneously withdrew full-year phosphate production guidance. This followed a significant Q4 2025 EPS miss of $0.22 versus a $0.44 consensus estimate, a 50% shortfall that now looks like part of a deteriorating quarter-to-quarter pattern.

What did BMO Capital Markets say about Mosaic stock?

BMO Capital Markets maintained its rating on MOS following the Q1 2026 results but lowered its price target to $31.00, down from a higher prior target. The maintained rating means BMO is not recommending an exit, but the target cut reflects that the prior valuation case could not be defended after a net loss and guidance withdrawal.