Optical · band window Nov 13 – Nov 20
COHERENT
Equity · US · Optical
Inside the expected range. No statistical dislocation.
Price basis: 2026-11-13 US regular-session close · candle and GEX OI timestamps are shown separately on the chart.
This link opens the latest data for this symbol.
30-minute candles · US regular session (ET)
2024-09-06 – 2026-11-13 · measured on each week's last regular-session close
Of COHR's 115 settled weeks, 75 (65.2%) finished inside ±1σ on the week's last close. 24 (20.9%) finished at or above +1σ and 16 (13.9%) at or below −1σ. A normal distribution puts 68.3% inside and about 15.9% beyond each side. Given 115 weeks, the gap from theory is within what chance alone produces. Breaks skewed upward: more weeks finished above +1σ than below −1σ.
This week's band of ±13.8% is 1.48× the symbol's median width of ±9.3% and ranks #21 widest of 184 tracked symbols. The options market is pricing a larger move than usual; check whether an earnings release or similar event falls inside the week.
The week that finished furthest from its anchor closed 2026-08-07 at +2.94σ. The most recent finish outside was 2026-10-16 (−2.72σ), followed by 4 straight weeks inside.
Past shares do not predict next week. A week that broke the band intraday but closed back inside counts as inside. The universe-wide measurement and its method are in the weekly ±1σ coverage study.
Each date uses its own weekly band · settled bands are retained
Click or tap the chart to see prices.
Price ($)
Shading: historic ±1σ · dots: close at or beyond the band
Prices shown 2025-11-13–2026-11-13 · 252 sessions
Sigma bands: 252/252 sessions
| Close date | Sigma | +1W | +2W | +4W |
|---|---|---|---|---|
| +0.93σ | — | — | — | |
| −0.52σ | +13.14% | — | — | |
| +0.04σ | −8.33% | +3.72% | — | |
| −0.94σ | +0.49% | −7.87% | — | |
| −2.72σ | −10.14% | −9.70% | −6.34% | |
| −0.82σ | −25.50% | −33.05% | −38.32% | |
| +1.55σ | −7.25% | −30.90% | −37.60% | |
| −0.69σ | +13.93% | +5.68% | −29.25% | |
| +0.41σ | −6.78% | +6.20% | −26.61% | |
| +0.86σ | +3.93% | −3.12% | +2.37% | |
| +0.11σ | +8.34% | +12.59% | +19.58% | |
| −0.34σ | +0.95% | +9.37% | +5.96% |
Close-to-close price changes, excluding dividends and costs. — means future or unavailable. Predictive value is still under validation.
Dealer gamma stacked at each strike. The dashed lines are this week's ±1σ edges, so whether a thick strike and a band edge land on the same price is readable in one view.
Hedging runs with the move, so levels break faster than they hold.
+1σ $248.16 · −1σ $188.12 — outside the published strike window ($197.50–$237.50), so not drawn on the ladder above.
All expirations, strikes within ±10% of spot. Open interest settles once a day, so these levels move on the same cadence as the σ band.
A daily snapshot, not a live quote. Prices are taken as the upstream feed supplies them.