Unusual price movements and significant market activity for Backblaze, Inc. Class A Common Stock (BLZE). Each move is flagged by Z-score statistical significance — showing when BLZE moved beyond its typical daily range. 13 significant moves detected in the last 30 days.
Current Market State
What May Be Driving BLZE?
No specific catalyst has been identified in the available market data for Backblaze, Inc. Class A Common Stock (BLZE). The moves shown below are flagged based on statistical significance (Z-score ≥ 2), meaning BLZE 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.
Backblaze, Inc. Class A Common Stock operates in the Technology sector, specifically Services-Prepackaged Software. Sector-wide movement can contribute to individual stock volatility.
Recent Unusual Moves (30 days)
| Date | Session | Price | Move | Z-Score | Rel. Vol. |
|---|---|---|---|---|---|
| Aug 20, 2026 | Pre-market | $16.36 | -3.08% | -2.05 | — |
| Aug 19, 2026 | Pre-market | $17.60 | -8.33% | -5.56 | — |
| Aug 7, 2026 | Pre-market | $19.00 | +4.91% | 3.28 | — |
| Aug 7, 2026 | Regular | $18.83 | +3.98% | 2.65 | — |
| Aug 7, 2026 | After-hours | $18.94 | +4.61% | 3.07 | — |
| Aug 5, 2026 | Regular | $19.16 | -3.18% | -2.12 | — |
| Aug 5, 2026 | After-hours | $18.70 | -5.52% | -3.68 | — |
| Aug 4, 2026 | Pre-market | $19.24 | +23.41% | 15.61 | — |
| Aug 4, 2026 | Regular | $20.48 | +31.37% | 20.91 | — |
| Aug 4, 2026 | After-hours | $20.19 | +29.49% | 19.66 | — |
| Aug 3, 2026 | Pre-market | $14.18 | +3.33% | 2.22 | — |
| Aug 3, 2026 | Regular | $15.22 | +10.97% | 7.31 | — |
| Aug 3, 2026 | After-hours | $18.37 | +33.89% | 22.59 | — |
About BLZE Market Moves
This page tracks unusual market activity for Backblaze, Inc. Class A Common Stock (BLZE) 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 BLZE'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.