Banco Santander SAN
$11.74 −$0.27 (-2.25%)
Market closed · Nov 6, 8:20 pm ET · Last extended-hours $11.74 0.00%
Open$11.73
Prev close$12.01
Day range$11.70 – $11.89
Volume9.02M
Market cap$169.27B
P/E (TTM)9.9
Dividend yield2.31%
Average implied volatility across the listed chain right now: 91%. 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 | $12.00 | $0.30 | $0.15/$0.60 | 78 | 169 | 56% |
| 20 Nov 2026 | $11.00 | $1.16 | $0.15/$1.40 | 0 | 41 | 26% |
| 20 Nov 2026 | $13.00 | $0.05 | $0.00/$0.25 | 1 | 2,624 | 44% |
| 20 Nov 2026 | $10.00 | $2.08 | $0.55/$3.40 | 0 | 10 | 102% |
| 20 Nov 2026 | $14.00 | $0.03 | $0.00/$0.30 | 255 | 2,400 | 58% |
| 20 Nov 2026 | $9.00 | $3.05 | $1.55/$4.00 | 0 | 0 | 81% |
| 20 Nov 2026 | $15.00 | $0.01 | $0.00/$0.05 | 0 | 217 | 60% |
| 20 Nov 2026 | $8.00 | $4.04 | $2.70/$5.10 | 0 | 0 | 167% |
| 20 Nov 2026 | $16.00 | $0.00 | $0.00/$1.10 | 0 | 19 | 63% |
| 20 Nov 2026 | $7.00 | $5.03 | $3.50/$6.10 | 0 | 0 | 166% |
| 20 Nov 2026 | $17.00 | $0.00 | $0.00/$0.05 | 0 | 0 | 66% |
| 20 Nov 2026 | $6.00 | $6.03 | $4.50/$7.10 | 0 | 0 | 209% |
| 20 Nov 2026 | $18.00 | $0.00 | $0.00/$0.45 | 0 | 0 | 69% |
| 20 Nov 2026 | $19.00 | $0.00 | $0.00/$1.00 | 0 | 0 | 74% |
| 20 Nov 2026 | $20.00 | $0.00 | $0.00/$1.05 | 0 | 0 | 81% |
Puts
| Expiry | Strike | Last | Bid/Ask | Volume | Open interest | IV |
|---|---|---|---|---|---|---|
| 20 Nov 2026 | $12.00 | $0.40 | $0.40/$0.55 | 2 | 2,369 | 39% |
| 20 Nov 2026 | $11.00 | $0.10 | $0.00/$0.15 | 1 | 217 | 43% |
| 20 Nov 2026 | $13.00 | $1.07 | $1.05/$1.45 | 0 | 661 | 0% |
| 20 Nov 2026 | $10.00 | $0.05 | $0.00/$0.10 | 0 | 6 | 64% |
| 20 Nov 2026 | $14.00 | $2.00 | $0.90/$3.60 | 0 | 134 | 0% |
| 20 Nov 2026 | $9.00 | $0.02 | $0.00/$1.05 | 0 | 0 | 78% |
| 20 Nov 2026 | $15.00 | $3.25 | $2.00/$3.70 | 1 | 0 | 0% |
| 20 Nov 2026 | $8.00 | $0.01 | $0.00/$0.75 | 0 | 0 | 91% |
| 20 Nov 2026 | $16.00 | $3.99 | $2.90/$5.50 | 0 | 1 | 0% |
| 20 Nov 2026 | $7.00 | $0.00 | $0.00/$1.05 | 0 | 0 | 103% |
| 20 Nov 2026 | $17.00 | $5.25 | $3.90/$5.40 | 1 | 0 | 0% |
| 20 Nov 2026 | $6.00 | $0.00 | $0.00/$1.75 | 0 | 0 | 116% |
| 20 Nov 2026 | $18.00 | $6.25 | $4.90/$6.50 | 1 | 0 | 0% |
| 20 Nov 2026 | $19.00 | $6.99 | $7.00/$8.40 | 0 | 0 | 241% |
| 20 Nov 2026 | $20.00 | $7.99 | $6.90/$9.50 | 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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