Healthcare · band window Nov 13 – Nov 20
PFIZER
Equity · US
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 PFE's 115 settled weeks, 86 (74.8%) finished inside ±1σ on the week's last close. 14 (12.2%) finished at or above +1σ and 15 (13.0%) 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.
This week's band of ±3.3% is 1.08× the symbol's median width of ±3.1% and ranks #151 widest of 184 tracked symbols. That is close to its usual width.
The week that finished furthest from its anchor closed 2025-10-03 at +4.97σ. The most recent finish outside was 2026-10-16 (+1.51σ), 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 |
|---|---|---|---|---|
| −0.44σ | — | — | — | |
| −0.65σ | −1.68% | — | — | |
| +0.54σ | −3.70% | −5.32% | — | |
| +0.47σ | +1.63% | −2.13% | — | |
| +1.51σ | +1.52% | +3.18% | −2.32% | |
| +0.62σ | +4.60% | +6.19% | +3.93% | |
| −0.99σ | +1.73% | +6.40% | +9.78% | |
| +1.62σ | −3.03% | −1.36% | +4.74% | |
| −0.07σ | +3.65% | +0.51% | +6.94% | |
| −1.00σ | −0.22% | +3.43% | +2.02% | |
| +0.68σ | −2.57% | −2.78% | −2.28% | |
| −0.14σ | +1.75% | −0.86% | +2.54% |
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 leans against the move, so the strikes below tend to hold.
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.