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: Oct 16, 2026
Days to expiration: 5
Share price: $18.74
Put/call ratio (OI): 0.27
Put/call ratio (volume): 5.55
Open interest (C / P): 24.69K / 6.61K

MOS options summary

The MOS options chain for the October 16, 2026 expiration lists 33 call and 30 put contracts, with 5 days until expiration. Open interest stands at 24,686 calls and 6,609 puts, a put/call ratio of 0.27, which is tilted bullish, with calls outnumbering puts. The most open interest sits at the $25.00 call (7.15K contracts) and the $22.00 put (2.04K contracts).

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

MOS options chain · October 16, 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
5	31	236.3%	13.00	5.50	6.50	13.00	0.00	0.25	0.03	195.3%	1	5
0	—	138.3%	12.28	4.10	5.50	14.00	0.00	0.25	0.05	163.3%	2	2
23	44	110.9%	3.70	3.50	4.10	15.00	0.00	0.05	0.03	93.8%	2	4
0	—	119.9%	10.28	2.40	3.50	16.00	0.00	0.30	0.05	107.8%	5	2
—	—	—	3.10	—	—	17.00	0.00	0.15	0.12	61.7%	1	6
—	—	—	—	—	—	18.00	0.10	0.20	0.15	51.4%	171	39
—	—	—	—	—	—	18.50	—	—	0.10	—	—	—
MOS $18.74
2	290	53.9%	0.30	0.25	0.40	19.00	0.50	0.75	0.60	50.2%	1,233	172
—	—	—	0.65	—	—	19.50	0.75	1.00	0.85	54.9%	1,899	99
1,971	126	50.0%	0.08	0.05	0.15	20.00	1.20	1.65	1.35	60.2%	152	648
23	175	50.8%	0.05	0.00	0.10	20.50	1.45	1.95	1.73	77.0%	33	404
231	121	52.3%	0.05	0.00	0.05	21.00	2.10	2.50	2.28	57.8%	23	494
176	8	70.3%	0.05	0.00	0.10	21.50	2.25	2.85	1.84	80.9%	10	132
270	3	78.9%	0.05	0.00	0.10	22.00	3.00	3.40	3.02	102.0%	57	2,039
789	338	76.6%	0.03	0.00	0.05	22.50	3.40	3.90	3.45	111.7%	5	375
1,232	2	95.3%	0.10	0.00	0.10	23.00	4.10	4.40	4.16	121.1%	5	662
744	12	103.1%	0.09	0.00	0.10	23.50	4.00	5.00	3.90	150.8%	384	244
1,361	9	120.3%	0.02	0.00	0.15	24.00	4.50	5.50	4.22	160.0%	788	392
1,916	1	104.7%	0.03	0.00	0.05	24.50	5.00	5.90	5.19	146.9%	728	419
7,153	2	110.9%	0.03	0.00	0.05	25.00	5.50	6.50	5.00	177.7%	1,001	302
272	2	177.3%	0.08	0.00	0.40	25.50	6.00	6.90	2.40	162.5%	—	0
4,231	1	123.4%	0.02	0.00	0.05	26.00	6.50	7.40	5.50	170.3%	148	99
126	10	193.0%	0.05	0.00	0.40	26.50	7.00	7.90	3.65	177.3%	1	0
1,494	5	200.0%	0.02	0.00	0.40	27.00	7.50	8.40	6.60	184.4%	96	70
123	1	140.6%	0.15	0.00	0.05	27.50	—	—	—	—	—	—
806	22	214.4%	0.02	0.00	0.40	28.00	8.50	9.50	4.45	223.8%	1	0
35	2	221.1%	0.01	0.00	0.40	28.50	—	—	—	—	—	—
395	6	156.3%	0.04	0.00	0.05	29.00	0.00	0.00	7.30	—	—	0
3	1	234.4%	0.08	0.00	0.40	29.50	—	—	—	—	—	—
1,194	1	208.6%	0.05	0.00	0.20	30.00	10.70	11.40	6.10	222.7%	11	0
2	—	246.5%	0.10	0.00	0.40	30.50	—	—	—	—	—	—
60	3	252.3%	0.06	0.00	0.40	31.00	11.50	12.90	11.20	340.6%	4	0
12	2	264.1%	0.13	0.00	0.40	32.00	12.50	13.40	12.20	245.3%	4	0
29	2	275.0%	0.12	0.00	0.40	33.00	13.50	14.40	13.20	256.3%	5	0
8	—	285.9%	0.09	0.00	0.40	34.00	—	—	—	—	—	—

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 October 16, 2026 expiration, the MOS put/call ratio based on open interest is 0.27 (6,609 puts vs 24,686 calls), and 5.55 based on today's volume. A ratio above 1 means more puts than calls.

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.