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Insteel Industries IIIN

US equityMarket cap rank #3653Metal Fabrication
$29.59 −$0.58 (-1.92%)
Pre-market · Oct 8, 8:10 am ET · After hours $29.59 0.00%
Open$29.77
Prev close$30.17
Day range$29.23 – $29.79
Volume114.7K
Market cap$572.81M
P/E (TTM)15.8
Dividend yield0.41%

Average implied volatility across the listed chain right now: 105%. 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

152025354555CallsPuts

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

-24%73%170%267%153055CallsPuts

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 $30.00 $0.75 $0.15/$0.45 0 163 26%
16 Oct 2026 $25.00 $5.20 $2.50/$7.00 0 78 83%
16 Oct 2026 $35.00 $0.00 $0.00/$2.50 0 38 40%
16 Oct 2026 $22.50 $7.69 $5.00/$9.50 0 1 121%
16 Oct 2026 $20.00 $10.19 $7.50/$12.00 0 29 163%
16 Oct 2026 $40.00 $0.00 $0.00/$4.10 0 0 55%
16 Oct 2026 $17.50 $12.69 $10.00/$13.10 0 0 0%
16 Oct 2026 $15.00 $15.19 $12.80/$16.60 0 0 243%
16 Oct 2026 $45.00 $0.00 $0.00/$4.10 0 23 74%
16 Oct 2026 $50.00 $0.00 $0.00/$0.95 0 0 92%
16 Oct 2026 $55.00 $0.00 $0.00/$1.20 0 0 107%

Puts

ExpiryStrikeLastBid/AskVolumeOpen interestIV
16 Oct 2026 $30.00 $0.55 $0.50/$4.70 0 898 134%
16 Oct 2026 $25.00 $0.00 $0.00/$0.20 0 521 32%
16 Oct 2026 $35.00 $4.83 $3.20/$7.90 0 3 82%
16 Oct 2026 $22.50 $0.00 $0.00/$4.10 0 1 51%
16 Oct 2026 $20.00 $0.00 $0.00/$4.10 0 13 72%
16 Oct 2026 $40.00 $9.83 $8.10/$13.00 0 0 127%
16 Oct 2026 $17.50 $0.00 $0.00/$4.10 0 0 95%
16 Oct 2026 $15.00 $0.00 $0.00/$4.10 0 0 121%
16 Oct 2026 $45.00 $14.83 $13.20/$17.90 0 0 164%
16 Oct 2026 $50.00 $19.83 $18.30/$22.30 0 0 0%
16 Oct 2026 $55.00 $24.83 $23.20/$27.90 0 0 223%

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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