MOS — Mosaic Company

World's leading phosphate and potash fertilizer producer. AGI Score 5/10. Trading at 0.77x book. | Analysis date: 2026-03-13

Why are we looking at this?

Mosaic is the world's largest phosphate and potash producer, trading below book value (P/TB ~0.82x). AGI score 5 — food production is non-negotiable regardless of AGI, but precision agriculture could reduce fertilizer demand over time. The company has been buying back shares aggressively ($2.7B over 3 years) but stopped in FY2025. Share count dropped from 339M to 317M (-6.5% in 3 years). The question: are the mining assets worth more than the market price implies, and does the fertilizer business generate enough cash to protect the downside?

$29.31
Stock Price
$9B
Market Cap
0.77x
Price / Book
$12.1B
Revenue (FY2025)
$825M
Operating Cash Flow
$-535M
Free Cash Flow
17.24x
P/E (trailing)
2.8%
Dividend Yield
$15B
Enterprise Value
Stock Price — MOS

1. The Business

Mosaic is the world's leading producer and marketer of concentrated phosphate and potash crop nutrients. Second largest integrated phosphate producer globally, 11% of world phosphate and 12% of world potash production. Operations in Florida, Louisiana, Canada (Saskatchewan), Brazil, and Peru.

Segments

Key Asset: Mining Reserves

The core asset is the mining reserves. Phosphate rock deposits in Florida and potash deposits in Saskatchewan take decades to develop. These are scarce, depletable physical assets. PP&E on the books is $14.0B — this represents mines, processing plants, and infrastructure. The question is whether these assets are worth more or less than their book value given current commodity prices.

2. Balance Sheet

ItemFY2025Notes
ASSETS
Net PP&E (Mines & Plants)$14.0B57% of total assets — the mines
Goodwill$1.0BFrom acquisitions (declining — was $1.14B in 2023)
Cash & Equivalents$277M
Other Assets~$9.2BReceivables, inventory, investments
TOTAL ASSETS$24.5B
LIABILITIES
Total Debt$5.3BDebt/Equity = 0.44x
Other Liabilities~$7.1BAP, environmental, pension, tax
TOTAL LIABILITIES$12.4B
EQUITY
Stockholders' Equity$12.1B
Tangible Book Value$11.1BEquity - Goodwill
Tangible BV / Share$34.93vs price $29.31

3. Cash Flow & Earnings

YearRevenueNet IncomeOCFCapExFCFBuyback
FY2022$19.1B$3.6B$3.9B($1.2B)$2.7B($1.7B)
FY2023$13.7B$1.2B$2.4B($1.4B)$1.0B($756M)
FY2024$11.1B$175M$1.3B($1.3B)$47M($235M)
FY2025$12.1B$541M$825M($1.4B)($535M)$0

Cash Flow Warning

FY2025 FCF was negative ($-535M). CapEx of $1.4B/year is massive — nearly as large as OCF. This is a capital-intensive mining business that requires continuous heavy spending. The company stopped buybacks in FY2025 because cash was tight. Revenue has dropped 37% from FY2022 peak ($19.1B to $12.1B) as fertilizer prices normalized post-Ukraine spike.

The FY2022 earnings ($3.6B net income) were a one-time commodity spike, NOT normalized earnings. FY2024 ($175M) is closer to trough earnings. FY2025 ($541M) may be mid-cycle.

4. Shares Outstanding

YearSharesChange
FY2022339,071,423
FY2023324,103,141-4.4%
FY2024316,932,047-2.2%
FY2025317,408,647+0.1%

Significant buyback program from FY2022-2024 ($2.7B spent, shares down 6.4%). But buybacks stopped in FY2025 — the company couldn't afford them with negative FCF.

5. Working Backwards from 10x

What would 10x ($293/share, ~$93B market cap) require?

Verdict: MOS is NOT a 10x candidate. Commodity businesses without moats cannot compound. The only path to 10x is buying at cyclical trough ($15-18/share) and selling at cyclical peak. At $29, you're near mid-cycle, not trough.

6. AGI Impact

Positives

  • Food production is non-negotiable — AGI doesn't eliminate the need to eat
  • Mining assets are physical bottlenecks (decades to develop new mines)
  • AGI could optimize mining operations for modest margin gains
  • Population growth continues regardless of AGI

Negatives

  • Precision agriculture (AGI-optimized) could reduce fertilizer use 20-30%
  • Bioengineered crops needing less fertilizer (10-20 year horizon)
  • Synthetic food / cellular agriculture could bypass traditional farming
  • No pricing power — AGI benefits flow to customers, not Mosaic

7. Floor Price Estimate

Tangible Book Value$34.93/shareCurrent price is 16% below
Conservative Floor (70% of TBV)$24.45If mines worth 70% of book in downturn
Trough Earnings Floor$18-22$175M NI (FY2024 trough) x 12-15x P/E ÷ 317M shares = $6.60-8.28
Replacement Value Floor$28-35PP&E at replacement cost likely exceeds book (inflation on mining assets)

Floor estimate: $22-28/share. Confidence: Moderate. The mines are real, but commodity price risk makes the earnings floor uncertain. At $29.31, you're near the floor, not far above it. Limited margin of safety.

8. Assessment

MOS is a commodity business trading near tangible book value. The assets are real (mines, processing plants), but the earnings are highly cyclical and CapEx is enormous. FCF was negative in FY2025. Not a 10x candidate. The floor is probably $22-28, and at $29 you have minimal margin of safety.

Would only buy at $18-22 (0.55-0.65x tangible book) for a true margin of safety. At that price, you're getting the mines for 55-65 cents on the dollar with a covered dividend.

Data sources: SEC EDGAR XBRL (CIK 1285785), yfinance, 10-K filing (FY2024/2025). Analysis date: 2026-03-13.