Rio Tinto RIO
$83.73 +$0.57 (+0.69%)
Market closed · Nov 7, 9:50 pm ET · Last extended-hours $83.73 0.00%
Open$82.74
Prev close$83.16
Day range$82.39 – $84.35
Volume2.80M
Market cap$136.19B
P/E (TTM)11.3
Dividend yield4.80%
Average implied volatility across the listed chain right now: 61%. 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 | $85.00 | $1.73 | $1.60/$2.05 | 204 | 1,734 | 38% |
| 20 Nov 2026 | $80.00 | $4.95 | $4.50/$5.30 | 14 | 207 | 41% |
| 20 Nov 2026 | $90.00 | $0.50 | $0.30/$0.50 | 117 | 1,608 | 35% |
| 20 Nov 2026 | $75.00 | $8.70 | $8.50/$9.80 | 0 | 11 | 46% |
| 20 Nov 2026 | $95.00 | $0.07 | $0.00/$0.15 | 2 | 1,917 | 36% |
| 20 Nov 2026 | $70.00 | $13.45 | $12.00/$15.90 | 0 | 10 | 54% |
| 20 Nov 2026 | $100.00 | $0.06 | $0.00/$0.15 | 2 | 783 | 46% |
| 20 Nov 2026 | $65.00 | $18.38 | $18.00/$19.60 | 0 | 0 | 0% |
| 20 Nov 2026 | $105.00 | $0.06 | $0.00/$0.10 | 0 | 459 | 56% |
| 20 Nov 2026 | $60.00 | $23.36 | $22.50/$25.70 | 0 | 0 | 108% |
| 20 Nov 2026 | $110.00 | $0.03 | $0.00/$0.60 | 0 | 239 | 60% |
| 20 Nov 2026 | $55.00 | $28.35 | $27.20/$30.80 | 0 | 0 | 122% |
| 20 Nov 2026 | $115.00 | $0.01 | $0.00/$0.70 | 0 | 1,230 | 64% |
| 20 Nov 2026 | $50.00 | $33.34 | $32.00/$35.30 | 0 | 0 | 0% |
| 20 Nov 2026 | $120.00 | $0.01 | $0.00/$0.05 | 0 | 7 | 67% |
Puts
| Expiry | Strike | Last | Bid/Ask | Volume | Open interest | IV |
|---|---|---|---|---|---|---|
| 20 Nov 2026 | $85.00 | $2.80 | $1.15/$4.50 | 207 | 838 | 35% |
| 20 Nov 2026 | $80.00 | $0.90 | $0.70/$1.00 | 108 | 5,192 | 37% |
| 20 Nov 2026 | $90.00 | $6.55 | $4.60/$8.40 | 3 | 2,511 | 33% |
| 20 Nov 2026 | $75.00 | $0.33 | $0.05/$0.30 | 0 | 4,601 | 40% |
| 20 Nov 2026 | $95.00 | $11.95 | $9.80/$13.10 | 0 | 147 | 48% |
| 20 Nov 2026 | $70.00 | $0.08 | $0.00/$0.15 | 0 | 108 | 51% |
| 20 Nov 2026 | $100.00 | $16.85 | $15.70/$16.60 | 0 | 0 | 0% |
| 20 Nov 2026 | $65.00 | $0.02 | $0.00/$0.35 | 0 | 7 | 56% |
| 20 Nov 2026 | $105.00 | $21.84 | $19.50/$22.70 | 0 | 0 | 0% |
| 20 Nov 2026 | $60.00 | $0.00 | $0.00/$0.05 | 0 | 6 | 60% |
| 20 Nov 2026 | $110.00 | $26.84 | $24.60/$28.10 | 0 | 0 | 79% |
| 20 Nov 2026 | $55.00 | $0.00 | $0.00/$2.15 | 0 | 12 | 65% |
| 20 Nov 2026 | $115.00 | $31.84 | $29.60/$32.90 | 0 | 0 | 0% |
| 20 Nov 2026 | $50.00 | $0.00 | $0.00/$0.25 | 0 | 0 | 71% |
| 20 Nov 2026 | $120.00 | $36.84 | $34.90/$37.50 | 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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