Average implied volatility across the listed chain right now: 74%. 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.
| Expiry | Strike | Last | Bid/Ask | Volume | Open interest | IV |
|---|---|---|---|---|---|---|
| 16 Oct 2026 | $165.00 | $6.79 | $5.70/$7.80 | 0 | 305 | 61% |
| 16 Oct 2026 | $170.00 | $4.86 | $3.90/$5.80 | 0 | 17 | 63% |
| 16 Oct 2026 | $160.00 | $9.41 | $7.50/$10.60 | 0 | 1,168 | 58% |
| 16 Oct 2026 | $175.00 | $2.85 | $2.60/$4.30 | 3 | 27 | 64% |
| 16 Oct 2026 | $155.00 | $12.03 | $11.00/$14.50 | 0 | 185 | 63% |
| 16 Oct 2026 | $180.00 | $2.49 | $1.10/$3.20 | 0 | 1,071 | 63% |
| 16 Oct 2026 | $150.00 | $16.20 | $14.80/$18.60 | 0 | 29 | 66% |
| 16 Oct 2026 | $185.00 | $1.98 | $0.00/$3.40 | 0 | 6 | 71% |
| 16 Oct 2026 | $145.00 | $20.37 | $18.80/$22.70 | 0 | 1 | 66% |
| 16 Oct 2026 | $190.00 | $1.66 | $0.00/$2.90 | 0 | 67 | 76% |
| 16 Oct 2026 | $140.00 | $24.78 | $23.40/$27.00 | 0 | 113 | 67% |
| 16 Oct 2026 | $195.00 | $1.34 | $0.00/$2.80 | 0 | 16 | 80% |
| 16 Oct 2026 | $135.00 | $29.37 | $28.00/$31.90 | 0 | 19 | 71% |
| 16 Oct 2026 | $200.00 | $1.08 | $0.00/$2.55 | 0 | 39 | 83% |
| 16 Oct 2026 | $130.00 | $34.09 | $32.50/$36.70 | 0 | 12 | 63% |
| Expiry | Strike | Last | Bid/Ask | Volume | Open interest | IV |
|---|---|---|---|---|---|---|
| 16 Oct 2026 | $165.00 | $8.42 | $5.70/$8.20 | 0 | 579 | 59% |
| 16 Oct 2026 | $170.00 | $11.49 | $8.70/$11.20 | 0 | 167 | 59% |
| 16 Oct 2026 | $160.00 | $6.03 | $3.50/$5.80 | 0 | 927 | 59% |
| 16 Oct 2026 | $175.00 | $14.08 | $12.70/$15.70 | 71 | 569 | 67% |
| 16 Oct 2026 | $155.00 | $3.40 | $2.95/$4.00 | 4 | 530 | 66% |
| 16 Oct 2026 | $180.00 | $19.11 | $16.40/$19.90 | 0 | 79 | 69% |
| 16 Oct 2026 | $150.00 | $2.80 | $0.70/$2.60 | 0 | 493 | 60% |
| 16 Oct 2026 | $185.00 | $23.60 | $20.00/$24.00 | 0 | 48 | 65% |
| 16 Oct 2026 | $145.00 | $1.96 | $0.00/$2.45 | 0 | 553 | 78% |
| 16 Oct 2026 | $190.00 | $28.27 | $24.70/$28.50 | 0 | 1 | 68% |
| 16 Oct 2026 | $140.00 | $1.34 | $0.00/$2.65 | 0 | 1,275 | 81% |
| 16 Oct 2026 | $195.00 | $32.94 | $29.30/$33.20 | 0 | 2 | 70% |
| 16 Oct 2026 | $135.00 | $0.91 | $0.00/$2.30 | 0 | 146 | 85% |
| 16 Oct 2026 | $200.00 | $37.68 | $34.10/$38.00 | 0 | 0 | 72% |
| 16 Oct 2026 | $130.00 | $0.61 | $0.00/$2.15 | 0 | 34 | 88% |
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.
No comments yet — be the first to weigh in on GKOS.