Bank Of Montreal (BMO) Options Chain

NYSE: BMOFinanceCommercial BanksUSD

162.59+1.89 (+1.18%)

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

Expiration date

Expiration: Dec 18, 2026
Days to expiration: 69
Share price: $162.59
Put/call ratio (OI): 0.59
Put/call ratio (volume): 4.85
ATM implied volatility: 28.5%
Expected move: ±$20.13
Open interest (C / P): 4.14K / 2.44K

BMO options summary

The BMO options chain for the December 18, 2026 expiration lists 14 call and 15 put contracts, with 69 days until expiration. Open interest stands at 4,137 calls and 2,441 puts, a put/call ratio of 0.59, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $165.00 strike is 28.5%, which implies the market expects a move of about ±$20.13 (12.4%) in Bank Of Montreal stock by expiration.

The most open interest sits at the $195.00 call (1.52K contracts) and the $180.00 put (1.02K contracts).

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

BMO options chain · December 18, 2026

BMO 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
0	—	—	89.88	0.00	0.00	95.00	—	—	—	—	—	—
—	—	—	—	—	—	100.00	0.00	0.75	0.10	58.9%	1	1
—	—	—	—	—	—	120.00	0.00	0.00	0.20	12.5%	2	0
5	—	64.9%	29.85	40.10	42.80	125.00	0.70	1.65	1.99	49.2%	1	7
1	—	106.3%	46.76	44.30	48.10	130.00	—	—	—	—	—	—
—	—	—	—	—	—	135.00	0.10	1.75	0.55	38.9%	—	10
—	—	—	—	—	—	140.00	0.65	1.40	1.00	31.0%	2	11
2	1	50.7%	13.23	23.10	25.20	145.00	0.75	2.05	1.50	29.6%	4	22
—	—	—	—	—	—	150.00	1.40	3.20	2.78	29.2%	10	13
—	—	—	—	—	—	155.00	3.10	4.90	3.40	29.4%	1	305
8	2	28.5%	17.78	6.50	9.40	160.00	4.70	6.40	6.13	27.1%	10	31
BMO $162.59
16	6	28.5%	5.80	3.90	7.00	165.00	7.00	9.40	6.70	28.5%	2	5
218	71	27.8%	3.08	2.65	4.90	170.00	9.90	12.40	10.72	28.1%	86	224
757	3	24.3%	2.17	1.45	2.60	175.00	13.60	16.10	11.90	28.8%	57	751
1,023	2	25.4%	0.70	0.70	1.85	180.00	18.10	20.80	12.44	32.5%	501	1,025
128	10	25.6%	3.80	0.25	1.20	185.00	22.80	25.10	15.50	33.7%	30	35
430	40	25.7%	1.36	0.10	0.75	190.00	—	—	—	—	—	—
1,524	1	28.8%	0.53	0.00	0.75	195.00	—	—	—	—	—	—
0	9	12.5%	3.60	0.00	0.00	200.00	36.50	39.50	26.00	41.6%	1	1
25	1	37.2%	0.37	0.00	0.75	210.00	—	—	—	—	—	—

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 BMO put/call ratio?

For the December 18, 2026 expiration, the BMO put/call ratio based on open interest is 0.59 (2,441 puts vs 4,137 calls), and 4.85 based on today's volume. A ratio above 1 means more puts than calls.

What is BMO's implied volatility?

At-the-money implied volatility for BMO options expiring December 18, 2026 is about 28.5%, an annualized estimate of how much the market expects Bank Of Montreal stock to move.

How many BMO option expiration dates are there?

BMO has 5 listed expiration dates, from Oct 16, 2026 to Mar 19, 2027.

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.