Staar Surgical STAA
$25.21 −$1.51 (-5.65%)
Market closed · Nov 6, 8:10 pm ET · Last extended-hours $24.72 -1.94%
Open$26.41
Prev close$26.72
Day range$25.06 – $26.70
Volume1.04M
Market cap$1.27B
P/E (TTM)2,521.0
Dividend yield–
Average implied volatility across the listed chain right now: 125%. 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 |
|---|---|---|---|---|---|---|
| 20 Nov 2026 | $25.00 | $1.35 | $1.10/$1.35 | 24 | 242 | 59% |
| 20 Nov 2026 | $27.50 | $0.45 | $0.00/$0.55 | 16 | 76 | 65% |
| 20 Nov 2026 | $22.50 | $4.23 | $2.55/$4.00 | 0 | 79 | 87% |
| 20 Nov 2026 | $30.00 | $0.15 | $0.00/$0.35 | 19 | 338 | 70% |
| 20 Nov 2026 | $20.00 | $6.72 | $4.00/$6.60 | 0 | 91 | 75% |
| 20 Nov 2026 | $32.50 | $0.39 | $0.00/$0.65 | 0 | 21 | 118% |
| 20 Nov 2026 | $17.50 | $9.22 | $7.00/$9.80 | 0 | 3 | 201% |
| 20 Nov 2026 | $15.00 | $11.72 | $9.50/$12.30 | 0 | 0 | 262% |
| 20 Nov 2026 | $12.50 | $14.22 | $11.40/$14.80 | 0 | 0 | 282% |
Puts
| Expiry | Strike | Last | Bid/Ask | Volume | Open interest | IV |
|---|---|---|---|---|---|---|
| 20 Nov 2026 | $25.00 | $0.53 | $0.65/$1.25 | 1 | 32 | 58% |
| 20 Nov 2026 | $27.50 | $2.03 | $1.55/$2.90 | 1 | 5 | 0% |
| 20 Nov 2026 | $22.50 | $0.23 | $0.10/$0.90 | 0 | 39 | 84% |
| 20 Nov 2026 | $30.00 | $4.30 | $3.30/$5.80 | 0 | 0 | 0% |
| 20 Nov 2026 | $20.00 | $0.10 | $0.05/$0.15 | 1 | 56 | 83% |
| 20 Nov 2026 | $32.50 | $6.62 | $5.60/$8.40 | 0 | 0 | 0% |
| 20 Nov 2026 | $17.50 | $0.09 | $0.00/$0.05 | 0 | 139 | 118% |
| 20 Nov 2026 | $15.00 | $0.05 | $0.00/$0.20 | 0 | 0 | 142% |
| 20 Nov 2026 | $12.50 | $0.02 | $0.00/$0.05 | 0 | 0 | 167% |
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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