Your Best Stock

National Grid NGG

US equityMarket cap rank #221Utilities - Regulated Electric
$75.41
+$0.16 (+0.21%)
Market open · Sep 24, 1:10 pm ET
After hours $75.25 0.00%
Open$75.80
Prev close$75.25
Day range$74.80 – $75.82
Volume627.9K
Market cap$75.81B
P/E (TTM)17.5
Dividend yield4.09%

Average implied volatility across the listed chain right now: 47%. 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.

Calls

ExpiryStrikeLastBid/AskVolumeOpen interestIV
16 Oct 2026 $75.00 $3.03 $2.80/$3.20 3 27 22%
16 Oct 2026 $80.00 $0.66 $0.60/$0.80 1 15 21%
16 Oct 2026 $70.00 $7.92 $6.70/$7.50 0 49 21%
16 Oct 2026 $85.00 $0.23 $0.05/$0.25 0 24 24%
16 Oct 2026 $65.00 $12.73 $11.50/$12.40 0 3 0%
16 Oct 2026 $90.00 $0.13 $0.00/$0.20 0 9 32%
16 Oct 2026 $60.00 $17.67 $16.40/$17.60 0 0 38%
16 Oct 2026 $95.00 $0.07 $0.00/$0.75 0 2 38%
16 Oct 2026 $55.00 $22.65 $21.40/$22.80 0 0 65%
16 Oct 2026 $100.00 $0.04 $0.00/$0.75 0 0 42%
16 Oct 2026 $50.00 $27.63 $26.40/$27.70 0 2 77%
16 Oct 2026 $105.00 $0.03 $0.00/$0.75 0 0 46%
16 Oct 2026 $45.00 $32.62 $30.70/$33.30 0 197 88%
16 Oct 2026 $110.00 $0.02 $0.00/$0.75 0 0 49%
16 Oct 2026 $115.00 $0.01 $0.00/$0.75 0 0 52%

Puts

ExpiryStrikeLastBid/AskVolumeOpen interestIV
16 Oct 2026 $75.00 $1.12 $0.90/$1.10 1 53 22%
16 Oct 2026 $80.00 $3.78 $3.50/$3.90 1 152 21%
16 Oct 2026 $70.00 $0.18 $0.15/$0.75 1 41 32%
16 Oct 2026 $85.00 $7.54 $8.00/$8.90 0 6 31%
16 Oct 2026 $65.00 $0.05 $0.00/$0.25 0 2 31%
16 Oct 2026 $90.00 $12.45 $11.60/$15.30 0 0 43%
16 Oct 2026 $60.00 $0.01 $0.00/$0.20 0 0 36%
16 Oct 2026 $95.00 $17.41 $16.70/$20.30 0 0 55%
16 Oct 2026 $55.00 $0.00 $0.00/$0.65 0 0 40%
16 Oct 2026 $100.00 $22.40 $21.50/$25.30 0 0 62%
16 Oct 2026 $50.00 $0.00 $0.00/$0.75 0 0 44%
16 Oct 2026 $105.00 $27.40 $26.70/$29.70 0 0 0%
16 Oct 2026 $45.00 $0.00 $0.00/$0.75 0 0 49%
16 Oct 2026 $110.00 $32.40 $31.70/$35.30 0 0 82%
16 Oct 2026 $115.00 $37.40 $36.70/$40.30 0 0 90%

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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