Bank of Montreal BMO
$171.13 −$1.32 (-0.77%)
Market closed · Nov 8, 8:00 pm ET · Last extended-hours $171.13 0.00%
Open$170.35
Prev close$172.45
Day range$170.09 – $172.84
Volume331.2K
Market cap$119.86B
P/E (TTM)19.7
Dividend yield2.79%
Average implied volatility across the listed chain right now: 44%. Implied volatility measures how big a price swing the options market is pricing in — there is no fixed “normal” level, it varies a lot by stock.
Open interest by strike
Nearest listed expiry only. Calls above the line, puts below — clusters mark strikes where the market has built up the most open positions.
Implied volatility by strike
The “volatility smile”: strikes far from the current price often price in richer implied volatility than at-the-money strikes.
Calls
| Expiry | Strike | Last | Bid/Ask | Volume | Open interest | IV |
|---|---|---|---|---|---|---|
| 20 Nov 2026 | $170.00 | $4.60 | $2.50/$5.40 | 1 | 308 | 26% |
| 20 Nov 2026 | $175.00 | $1.80 | $1.25/$2.00 | 1 | 703 | 25% |
| 20 Nov 2026 | $165.00 | $9.08 | $6.20/$8.70 | 0 | 127 | 28% |
| 20 Nov 2026 | $180.00 | $1.08 | $0.05/$1.30 | 0 | 366 | 27% |
| 20 Nov 2026 | $160.00 | $13.46 | $10.60/$13.10 | 0 | 0 | 31% |
| 20 Nov 2026 | $185.00 | $0.28 | $0.00/$0.95 | 2 | 748 | 28% |
| 20 Nov 2026 | $155.00 | $18.16 | $15.00/$18.10 | 0 | 0 | 34% |
| 20 Nov 2026 | $190.00 | $0.33 | $0.00/$2.65 | 0 | 10 | 37% |
| 20 Nov 2026 | $150.00 | $23.03 | $20.20/$23.00 | 0 | 0 | 44% |
| 20 Nov 2026 | $195.00 | $0.22 | $0.00/$0.35 | 0 | 8 | 41% |
| 20 Nov 2026 | $145.00 | $27.97 | $25.10/$28.30 | 0 | 0 | 57% |
| 20 Nov 2026 | $200.00 | $0.15 | $0.00/$1.20 | 0 | 5 | 44% |
| 20 Nov 2026 | $140.00 | $32.94 | $30.00/$32.90 | 0 | 0 | 55% |
| 20 Nov 2026 | $135.00 | $37.92 | $35.10/$37.60 | 0 | 0 | 53% |
| 20 Nov 2026 | $210.00 | $0.07 | $0.00/$0.05 | 0 | 206 | 50% |
Puts
| Expiry | Strike | Last | Bid/Ask | Volume | Open interest | IV |
|---|---|---|---|---|---|---|
| 20 Nov 2026 | $170.00 | $1.93 | $1.15/$3.70 | 0 | 402 | 25% |
| 20 Nov 2026 | $175.00 | $5.00 | $4.70/$5.90 | 14 | 619 | 25% |
| 20 Nov 2026 | $165.00 | $1.30 | $0.75/$1.60 | 3 | 45 | 28% |
| 20 Nov 2026 | $180.00 | $8.21 | $8.10/$10.40 | 0 | 300 | 25% |
| 20 Nov 2026 | $160.00 | $0.50 | $0.05/$1.70 | 0 | 62 | 37% |
| 20 Nov 2026 | $185.00 | $12.68 | $12.20/$14.90 | 0 | 4 | 0% |
| 20 Nov 2026 | $155.00 | $0.21 | $0.00/$0.95 | 0 | 19 | 34% |
| 20 Nov 2026 | $190.00 | $17.61 | $17.00/$20.10 | 0 | 0 | 0% |
| 20 Nov 2026 | $150.00 | $0.08 | $0.00/$1.05 | 0 | 37 | 36% |
| 20 Nov 2026 | $195.00 | $22.56 | $22.00/$25.50 | 0 | 0 | 0% |
| 20 Nov 2026 | $145.00 | $0.03 | $0.00/$2.00 | 0 | 15 | 38% |
| 20 Nov 2026 | $200.00 | $27.55 | $27.70/$31.30 | 0 | 0 | 63% |
| 20 Nov 2026 | $140.00 | $0.01 | $0.00/$2.15 | 0 | 27 | 41% |
| 20 Nov 2026 | $135.00 | $0.00 | $0.00/$2.15 | 0 | 15 | 43% |
| 20 Nov 2026 | $210.00 | $37.55 | $37.00/$40.50 | 0 | 0 | 0% |
Open interest = contracts currently outstanding (not yet closed out). Higher open interest generally means a strike/expiry is more actively traded and easier to get in and out of.
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