Technology · band window Oct 9 – Oct 16
WESTERN DIGITAL
Equity · US · Data Storage
Inside the expected range. No statistical dislocation.
Price basis: 2026-10-09 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)
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 2025-10-09–2026-10-09 · 252 sessions
Sigma bands: 252/252 sessions
| Close date | Sigma | +1W | +2W | +4W |
|---|---|---|---|---|
| −0.53σ | — | — | — | |
| −1.01σ | −4.34% | — | — | |
| +0.41σ | −9.09% | −13.03% | — | |
| −0.15σ | +3.50% | −5.91% | — | |
| −0.47σ | −1.30% | +2.15% | −11.16% | |
| +0.20σ | −4.34% | −5.58% | −11.16% | |
| +0.00σ | +1.74% | −2.67% | −0.57% | |
| −0.98σ | +0.00% | +1.75% | −3.94% | |
| +1.54σ | −9.70% | −9.70% | −12.11% | |
| −1.17σ | +17.15% | +5.79% | +7.64% | |
| +0.31σ | −20.29% | −6.61% | −15.67% | |
| +0.57σ | +4.82% | −16.45% | −11.61% |
Close-to-close price changes, excluding dividends and costs. — means future or unavailable. Predictive value is unverified.
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 $426.24 — outside the published strike window ($367.50–$425.00), 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.