Benchmarks & ETF · band window Nov 13 – Nov 20
Roundhill Memory ETF
ETF · Global / other regions · Semiconductors · Memory
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)
2026-04-17 – 2026-11-13 · measured on each week's last regular-session close
Of DRAM's 31 settled weeks, 19 (61.3%) finished inside ±1σ on the week's last close. 6 (19.4%) finished at or above +1σ and 6 (19.4%) at or below −1σ. A normal distribution puts 68.3% inside and about 15.9% beyond each side. Given 31 weeks, the gap from theory is within what chance alone produces.
This week's band of ±11.0% is 1.11× the symbol's median width of ±10.0% and ranks #46 widest of 184 tracked symbols. That is close to its usual width.
The week that finished furthest from its anchor closed 2026-05-08 at +3.43σ. The most recent finish outside was 2026-11-06 (−1.84σ), followed by 1 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 2026-04-02–2026-11-13 · 157 sessions
Sigma bands: 151/157 sessions · missing bands show price only
| Close date | Sigma | +1W | +2W | +4W |
|---|---|---|---|---|
| +0.61σ | — | — | — | |
| −1.84σ | +7.94% | — | — | |
| +0.21σ | −18.16% | −11.67% | — | |
| +0.14σ | +2.02% | −16.51% | — | |
| −3.19σ | +1.31% | +3.36% | −8.70% | |
| −1.20σ | −18.78% | −17.71% | −31.30% | |
| −0.02σ | −7.43% | −24.81% | −22.29% | |
| +0.56σ | −0.21% | −7.62% | −23.99% | |
| +0.12σ | +3.86% | +3.64% | −22.08% | |
| −0.12σ | +0.86% | +4.75% | −3.23% | |
| +0.97σ | −0.99% | −0.13% | +3.50% | |
| −0.37σ | +6.91% | +5.86% | +10.89% |
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.
+1σ $47.09 · −1σ $37.73 — outside the published strike window ($38.50–$46.50), 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.