Compass Minerals International, Inc. enters the second half of fiscal 2026 with a clean portfolio and an awkward capital structure. The company has finished stripping non-core businesses out of its balance sheet. The Fortress fire retardant unit is gone, the Wynyard, Saskatchewan sulfate of potash operation sold in early March, and the final tranche of its 2027 notes redeemed at par. What remains is a pure-play sodium chloride and sulfate of potash producer operating eleven facilities, including the largest rock salt mine in North America at Goderich, Ontario, and the largest sulfate of potash site in the Western Hemisphere at Ogden, Utah.
The fiscal third quarter, ended June 30, 2026, delivered what looks like a quiet print masking a real tension. Sales of $215.3 million ran essentially flat year over year, but the mix behind the number matters. Salt volumes fell while combined average salt price rose, and the revenue line held because pricing absorbed the tonnage decline. Across the nine months the pattern repeats: price up, volumes down, sales up 4.7 percent to $1,064.6 million. Adjusted EBITDA, the company's preferred non-GAAP measure of core operating profit, came in at $39.9 million for the quarter, broadly in line with the prior year's $41.0 million.
The central debate is whether a salt miner can sustain this price trajectory once winter 2026-27 arrives. Management is explicit that fiscal 2027 demand is expected to run below fiscal 2026 as a stronger-than-average winter season rolls off. The market is paying $25.32 per share, a market cap near $1.06 billion. Net debt sits close to $700 million, which puts the equity in the middle of a repricing story rather than at either extreme. The stock has already repriced this story once, having moved from the low $16s to the current level over the past year. The falsifiable clock is the next deicing winter: highway salt volume trends and the per-ton price curve through Q1 FY2027, when the cold season peaks, is the test that resolves whether this is a cyclical peak or a structural repricing of North American salt.
The load-bearing risk is interest coverage. At $728 million of outstanding debt, the coupon on the 2030 notes consumes a large share of operating income each year. The interest burden is the single largest fixed cost in the capital structure. The equity sits above that interest burden, and its claim on residual cash flow is what the stock price ultimately reflects. Nine-month operating income of $103.5 million covers that interest only about two times. If the deicing cycle normalizes and prices drift back toward the low $80s per ton, the cushion compresses to under 1.5 times, and the equity's claim on cash flow becomes thin. The next two quarters are the test.