BeStock  

Unitil UTL

US equityMarket cap rank #3281Utilities - Diversified
$51.77 +$0.59 (+1.15%)
Pre-market · Oct 8, 7:00 am ET · After hours $51.77 0.00%
Open$51.10
Prev close$51.18
Day range$50.88 – $51.97
Volume107.3K
Market cap$944.11M
P/E (TTM)16.5
Dividend yield3.57%

Average implied volatility across the listed chain right now: 86%. 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

304050607080CallsPuts

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

-0%75%150%226%305580CallsPuts

The “volatility smile”: strikes far from the current price often price in richer implied volatility than at-the-money strikes.

Calls

ExpiryStrikeLastBid/AskVolumeOpen interestIV
16 Oct 2026 $50.00 $1.92 $0.20/$4.90 0 2 48%
16 Oct 2026 $55.00 $0.01 $0.00/$0.05 5 405 19%
16 Oct 2026 $45.00 $6.28 $5.10/$9.00 0 0 72%
16 Oct 2026 $60.00 $0.01 $0.00/$1.95 0 0 38%
16 Oct 2026 $40.00 $11.27 $10.10/$14.00 0 0 115%
16 Oct 2026 $65.00 $0.00 $0.00/$1.95 0 0 41%
16 Oct 2026 $35.00 $16.27 $15.00/$19.00 0 0 155%
16 Oct 2026 $70.00 $0.00 $0.00/$1.95 0 0 53%
16 Oct 2026 $30.00 $21.26 $20.00/$24.00 0 0 207%
16 Oct 2026 $75.00 $0.00 $0.00/$1.95 0 0 64%
16 Oct 2026 $80.00 $0.00 $0.00/$1.95 0 0 74%

Puts

ExpiryStrikeLastBid/AskVolumeOpen interestIV
16 Oct 2026 $50.00 $0.64 $0.00/$2.10 0 0 44%
16 Oct 2026 $55.00 $3.94 $1.70/$5.00 0 0 33%
16 Oct 2026 $45.00 $0.01 $0.00/$1.95 0 10 39%
16 Oct 2026 $60.00 $8.82 $6.60/$10.00 0 0 59%
16 Oct 2026 $40.00 $0.00 $0.00/$0.20 0 0 55%
16 Oct 2026 $65.00 $13.82 $12.40/$15.00 0 0 119%
16 Oct 2026 $35.00 $0.00 $0.00/$1.95 0 0 69%
16 Oct 2026 $70.00 $18.82 $17.40/$20.10 0 0 149%
16 Oct 2026 $30.00 $0.00 $0.00/$1.95 0 0 95%
16 Oct 2026 $75.00 $23.82 $22.10/$25.10 0 0 161%
16 Oct 2026 $80.00 $28.82 $27.10/$30.10 0 0 181%

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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