S&P Global SPGI
$467.80 −$4.61 (-0.98%)
Market closed · Nov 6, 8:10 pm ET · Last extended-hours $467.80 0.00%
Open$461.67
Prev close$472.41
Day range$460.10 – $470.74
Volume1.47M
Market cap$135.62B
P/E (TTM)27.8
Dividend yield0.83%
Average implied volatility across the listed chain right now: 36%. 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 |
|---|---|---|---|---|---|---|
| 13 Nov 2026 | $467.50 | $9.01 | $6.00/$9.80 | 13 | 0 | 33% |
| 13 Nov 2026 | $470.00 | $6.60 | $2.75/$10.00 | 4 | 8 | 31% |
| 13 Nov 2026 | $465.00 | $13.77 | $9.00/$11.70 | 0 | 1 | 37% |
| 13 Nov 2026 | $472.50 | $8.66 | $5.20/$7.20 | 0 | 0 | 35% |
| 13 Nov 2026 | $462.50 | $12.70 | $8.60/$12.90 | 22 | 1 | 33% |
| 13 Nov 2026 | $475.00 | $7.76 | $0.80/$9.30 | 0 | 2 | 34% |
| 13 Nov 2026 | $460.00 | $13.60 | $8.80/$16.30 | 1 | 57 | 34% |
| 13 Nov 2026 | $477.50 | $6.86 | $1.65/$7.40 | 0 | 3 | 36% |
| 13 Nov 2026 | $457.50 | $16.10 | $11.90/$16.60 | 241 | 0 | 34% |
| 13 Nov 2026 | $480.00 | $5.97 | $0.05/$8.50 | 0 | 20 | 38% |
| 13 Nov 2026 | $455.00 | $17.70 | $12.80/$20.90 | 2 | 0 | 38% |
| 13 Nov 2026 | $482.50 | $5.07 | $0.05/$6.80 | 0 | 0 | 37% |
| 13 Nov 2026 | $452.50 | $23.92 | $14.60/$22.80 | 0 | 0 | 38% |
| 13 Nov 2026 | $485.00 | $4.71 | $0.05/$7.30 | 0 | 0 | 42% |
| 13 Nov 2026 | $450.00 | $26.08 | $17.80/$24.80 | 0 | 4 | 42% |
Puts
| Expiry | Strike | Last | Bid/Ask | Volume | Open interest | IV |
|---|---|---|---|---|---|---|
| 13 Nov 2026 | $467.50 | $6.46 | $6.50/$9.50 | 0 | 10 | 36% |
| 13 Nov 2026 | $470.00 | $7.01 | $6.80/$9.60 | 0 | 0 | 31% |
| 13 Nov 2026 | $465.00 | $5.91 | $3.20/$8.20 | 0 | 1 | 31% |
| 13 Nov 2026 | $472.50 | $8.30 | $8.30/$11.20 | 0 | 0 | 31% |
| 13 Nov 2026 | $462.50 | $5.36 | $1.85/$6.80 | 0 | 0 | 29% |
| 13 Nov 2026 | $475.00 | $9.91 | $7.70/$16.10 | 0 | 0 | 34% |
| 13 Nov 2026 | $460.00 | $4.81 | $1.60/$8.60 | 0 | 0 | 37% |
| 13 Nov 2026 | $477.50 | $11.52 | $9.40/$17.30 | 0 | 0 | 33% |
| 13 Nov 2026 | $457.50 | $4.26 | $0.85/$7.80 | 0 | 0 | 37% |
| 13 Nov 2026 | $480.00 | $13.13 | $10.80/$19.90 | 0 | 6 | 34% |
| 13 Nov 2026 | $455.00 | $3.68 | $1.50/$4.30 | 2 | 0 | 34% |
| 13 Nov 2026 | $482.50 | $14.74 | $13.10/$20.00 | 0 | 0 | 30% |
| 13 Nov 2026 | $452.50 | $2.60 | $0.40/$3.60 | 1 | 0 | 32% |
| 13 Nov 2026 | $485.00 | $16.88 | $15.00/$23.00 | 0 | 0 | 33% |
| 13 Nov 2026 | $450.00 | $2.20 | $0.15/$3.20 | 1 | 2 | 33% |
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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