Software · band window Sep 25 – Oct 2
IBM
Equity · US · Software
Inside the expected range. No statistical dislocation.
Price basis: 2026-09-25 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 2025-09-25–2026-09-25 · 252 sessions
Sigma bands: 248/252 sessions · missing bands show price only
Anchor-date IV unverified for 4 sessions · bands and sigma hidden
| Close date | Sigma | +1W | +2W | +4W |
|---|---|---|---|---|
| −0.42σ | — | — | — | |
| −1.20σ | −1.76% | — | — | |
| −0.07σ | +3.58% | −2.27% | — | |
| −0.01σ | −0.30% | +3.27% | −4.28% | |
| +0.14σ | −0.04% | −0.34% | −2.60% | |
| −0.26σ | +0.58% | +0.54% | +3.83% | |
| +1.11σ | −1.25% | −0.67% | −1.01% | |
| +0.77σ | +6.09% | +4.77% | +5.34% | |
| +0.08σ | +4.42% | +10.78% | +10.03% | |
| −4.98σ | +0.71% | +5.16% | +10.18% | |
| −0.11σ | −26.04% | −25.51% | −17.49% | |
| +1.19σ | −0.68% | −26.54% | −22.75% |
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.
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.