BeStock  

Sigma Lithium SGML

$9.86 +$0.15 (+1.54%)
Pre-market · Oct 8, 9:00 am ET · After hours $9.81 -0.49%
Open$10.32
Prev close$9.71
Day range$9.68 – $10.36
Volume2.92M
Market cap$1.11B
P/E (TTM)–
Dividend yield–

Average implied volatility across the listed chain right now: 181%. 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

3.008.0012162024283234CallsPuts

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

-41%124%290%456%3.001934CallsPuts

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 $10.00 $0.44 $0.30/$0.70 31 3,460 94%
16 Oct 2026 $9.00 $1.07 $0.95/$1.20 52 1,729 93%
16 Oct 2026 $11.00 $0.15 $0.15/$0.20 30 2,608 91%
16 Oct 2026 $8.00 $1.85 $1.70/$2.25 0 425 123%
16 Oct 2026 $12.00 $0.07 $0.05/$0.10 22 1,448 99%
16 Oct 2026 $7.00 $2.79 $2.45/$3.20 0 8 0%
16 Oct 2026 $13.00 $0.05 $0.00/$0.15 2 2,983 116%
16 Oct 2026 $6.00 $3.76 $3.60/$4.40 0 13 253%
16 Oct 2026 $14.00 $0.10 $0.00/$0.05 1 304 162%
16 Oct 2026 $5.00 $4.75 $4.60/$5.40 0 5 328%
16 Oct 2026 $15.00 $0.05 $0.00/$0.10 0 1,207 159%
16 Oct 2026 $16.00 $0.04 $0.00/$0.35 0 448 172%
16 Oct 2026 $3.00 $6.75 $6.40/$7.40 0 0 415%
16 Oct 2026 $17.00 $0.03 $0.00/$0.10 0 598 182%
16 Oct 2026 $18.00 $0.03 $0.00/$0.35 0 280 192%

Puts

ExpiryStrikeLastBid/AskVolumeOpen interestIV
16 Oct 2026 $10.00 $0.60 $0.45/$0.70 5 1,740 84%
16 Oct 2026 $9.00 $0.20 $0.15/$0.25 6 2,063 92%
16 Oct 2026 $11.00 $1.38 $1.20/$1.45 0 947 95%
16 Oct 2026 $8.00 $0.05 $0.00/$0.15 51 1,806 99%
16 Oct 2026 $12.00 $2.36 $2.10/$2.40 0 467 113%
16 Oct 2026 $7.00 $0.04 $0.00/$0.10 0 1,171 142%
16 Oct 2026 $13.00 $3.34 $2.60/$3.70 0 449 95%
16 Oct 2026 $6.00 $0.02 $0.00/$0.15 0 182 164%
16 Oct 2026 $14.00 $4.32 $3.60/$4.50 0 396 0%
16 Oct 2026 $5.00 $0.01 $0.00/$0.05 0 120 186%
16 Oct 2026 $15.00 $5.31 $4.90/$5.40 0 109 135%
16 Oct 2026 $16.00 $6.31 $5.80/$6.80 0 42 233%
16 Oct 2026 $3.00 $0.00 $0.00/$0.05 0 0 234%
16 Oct 2026 $17.00 $7.30 $6.60/$7.70 0 0 168%
16 Oct 2026 $18.00 $8.30 $7.60/$8.80 0 64 226%

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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