Unusual price movements and significant market activity for Grayscale Bitcoin Trust ETF (GBTC). Each move is flagged by Z-score statistical significance — showing when GBTC moved beyond its typical daily range. 2 significant moves detected in the last 30 days.
Current Market State
What May Be Driving GBTC?
No specific catalyst has been identified in the available market data for Grayscale Bitcoin Trust ETF (GBTC). The moves shown below are flagged based on statistical significance (Z-score ≥ 2), meaning GBTC moved beyond its typical daily range. A catalyst may exist — such as earnings, analyst action, sector momentum, or news — but has not yet been tagged to this ticker.
Grayscale Bitcoin Trust ETF operates in the Financial Services sector, specifically Commodity Contracts Brokers & Dealers. Sector-wide movement can contribute to individual stock volatility.
Recent Unusual Moves (30 days)
| Date | Session | Price | Move | Z-Score | Rel. Vol. |
|---|---|---|---|---|---|
| Aug 21, 2026 | Pre-market | $59.68 | +6.04% | 4.03 | — |
| Aug 20, 2026 | Pre-market | $55.74 | +5.17% | 3.45 | — |
About GBTC Market Moves
This page tracks unusual market activity for Grayscale Bitcoin Trust ETF (GBTC) across all trading sessions — pre-market (4:00 AM–9:30 AM ET), regular hours (9:30 AM–4:00 PM ET), and after-hours (4:00 PM–8:00 PM ET). A move is flagged as "unusual" when its Z-score reaches 2 or higher, meaning the price change is statistically significant relative to GBTC's recent daily volatility.
Z-score is calculated by comparing each move to the 20-day average return and standard deviation. A Z-score of 2.0 means the move is 2 standard deviations beyond the average — occurring in roughly the top 5% of daily moves. Relative volume (RVOL) compares current volume to the 20-day average volume at the same time of day, helping distinguish genuine institutional activity from noise.