Mosaic Company
Mosaic Company (MOS) Options Open Interest
MOS options open interest is 362,661 contracts. The 2-week average daily volume is 14,265 contracts across the chain.
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Monitoring MOS open interest helps you see where real money is positioned on Mosaic Company's options and which strikes are attracting the most commitment from traders. Mosaic Company's open interest reflects the total number of outstanding contracts that have not been closed or exercised, making it a powerful gauge of liquidity, conviction, and potential support and resistance zones. Use our scanner to monitor MOS options open interest in real time and find the strikes that matter.
Open interest is distinct from volume: volume counts how many contracts are traded in a session, while open interest counts how many remain open at the end of the day. Rising MOS options open interest alongside rising volume suggests new positions are being built, while falling open interest signals positions are being closed. Heavy open interest at specific strikes often acts as a magnet near expiration and can hint at where dealers and large traders expect Mosaic Company to settle.
The Mosaic Company, through its subsidiaries, produces and markets concentrated phosphate and potash crop nutrients in North America and internationally. The company operates through three segments: Phosphates, Potash, and Mosaic Fertilizantes. It owns and operates mines, which produce concentrated phosphate crop nutrients, such as diammonium phosphate, monoammonium phosphate, and ammoniated phosphate products; and phosphate-based animal feed ingredients primarily under the Biofos and Nexfos brand names, as well as produces a double sulfate of potash magnesia product under K-Mag brand name. The company also produces and sells potash for use in the manufacturing of mixed crop nutrients and animal feed ingredients, and for industrial use; and for use in the de-icing and as a water softener regenerant.
In addition, it provides nitrogen-based crop nutrients, animal feed ingredients, and other ancillary services; and purchases and sells phosphates, potash, and nitrogen products. The company sells its products to wholesale distributors, retail chains, farmers, cooperatives, independent retailers, and national accounts. The Mosaic Company was incorporated in 2004 and is headquartered in Tampa, Florida.
Pin risk into expiration, dealer positioning, liquidity checks for large orders — all of it starts with knowing where MOS open interest is concentrated. Our scanner maps Mosaic Company's open interest across every strike and expiry, flags unusual buildups, and lets you drill into the contracts that institutional money is actually holding. Trade Mosaic Company's options open interest as the signal it is, not as an afterthought.
| 27.00 | — | 0.05 | 0.05 | 71% | +0.0549 | 2,508 |
| 26.00 | — | 0.05 | 0.05 | 58% | +0.0654 | 677 |
| 25.50 | — | 0.10 | 0.10 | 60% | +0.1134 | 660 |
| 25.00 | 0.05 | 0.20 | 0.13 | 55% | +0.1454 | 530 |
| 30.00 | — | 0.05 | 0.05 | 107% | +0.0393 | 357 |
| 23.50 | 0.70 | 0.90 | 0.80 | 42% | -0.6280 | 381 |
| 23.00 | 0.45 | 0.60 | 0.53 | 43% | -0.4803 | 327 |
| 22.50 | 0.25 | 0.45 | 0.35 | 47% | -0.3457 | 256 |
| 24.00 | 1.05 | 1.25 | 1.15 | 42% | -0.7602 | 217 |
| 21.00 | — | 0.10 | 0.10 | 58% | -0.1113 | 209 |
As of September 23, 2026
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