Mosaic (MOS) Options Chain

NYSE: MOSIndustrialsAgricultural ChemicalsUSD

18.74-0.99 (-5.02%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Expiration date

Expiration: Nov 6, 2026
Days to expiration: 27
Share price: $18.74
Put/call ratio (OI): 1.24
Put/call ratio (volume): 2.15
ATM implied volatility: 54.5%
Expected move: ±$2.78
Open interest (C / P): 552 / 684

MOS options summary

The MOS options chain for the November 6, 2026 expiration lists 15 call and 14 put contracts, with 27 days until expiration. Open interest stands at 552 calls and 684 puts, a put/call ratio of 1.24, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $19.00 strike is 54.5%, which implies the market expects a move of about ±$2.78 (14.8%) in Mosaic stock by expiration.

The most open interest sits at the $23.00 call (167 contracts) and the $20.00 put (320 contracts).

Summary generated from market data by MetaCap's automated system. Methodology

MOS options chain · November 6, 2026

MOS calls and puts by strike price. Shaded cells are in the money.
Calls							Puts
OI	Vol	IV	Last	Bid	Ask	Strike	Bid	Ask	Last	IV	Vol	OI
—	—	—	—	—	—	16.00	—	—	0.10	—	—	—
—	—	—	—	—	—	17.00	0.25	0.40	0.18	54.1%	2	26
—	—	—	—	—	—	18.00	0.60	0.75	0.61	50.3%	7	69
MOS $18.74
—	—	—	1.46	—	—	19.00	1.05	1.25	1.11	54.5%	62	86
—	—	—	—	—	—	20.00	1.65	1.90	1.76	55.4%	2	320
—	—	—	0.93	—	—	20.50	2.00	2.25	1.54	54.8%	2	15
41	13	53.0%	0.40	0.30	0.40	21.00	2.15	2.75	1.20	61.5%	1	38
—	—	—	—	—	—	21.50	2.55	3.20	1.73	64.8%	3	7
—	—	—	0.40	—	—	22.00	2.95	3.60	2.54	64.0%	2	67
—	—	—	0.32	—	—	22.50	3.70	4.00	3.94	61.7%	3	16
167	20	62.9%	0.25	0.05	0.35	23.00	3.80	4.50	2.29	66.4%	9	29
—	—	—	0.25	—	—	23.50	4.20	5.10	3.60	79.2%	1	2
86	3	60.4%	0.15	0.00	0.20	24.00	4.90	5.40	4.25	65.2%	4	9
101	1	73.2%	0.33	0.00	0.35	24.50	—	—	—	—	—	—
24	2	67.6%	0.22	0.00	0.20	25.00	—	—	—	—	—	—
74	1	83.6%	0.20	0.00	0.40	25.50	—	—	—	—	—	—
54	3	65.2%	0.05	0.00	0.10	26.00	—	—	—	—	—	—
1	1	90.8%	0.29	0.00	0.40	26.50	—	—	—	—	—	—
4	2	71.1%	0.05	0.00	0.10	27.00	7.40	8.80	6.10	124.5%	1	0
—	—	—	0.10	—	—	27.50	—	—	—	—	—	—

In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.

Frequently asked questions

What is the MOS put/call ratio?

For the November 6, 2026 expiration, the MOS put/call ratio based on open interest is 1.24 (684 puts vs 552 calls), and 2.15 based on today's volume. A ratio above 1 means more puts than calls.

What is MOS's implied volatility?

At-the-money implied volatility for MOS options expiring November 6, 2026 is about 54.5%, an annualized estimate of how much the market expects Mosaic stock to move.

How many MOS option expiration dates are there?

MOS has 13 listed expiration dates, from Oct 16, 2026 to Jan 19, 2029.

What does "in the money" mean?

A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.