Quick answer
Astera Labs (ALAB) fell 5.4% to $285.82 on Friday, Oct 16, 2026, on 1.1x its 50-day average volume. There was no new SEC filing from the company in the five days up to the session, so the filing record does not explain the move.
Close (Oct 16, 2026)$285.82
Change-5.4%
Volume vs 50-day avg1.1x
From 52-week high-42.8%
What the data shows about the move
- Industry peers (UMC, NXPI, MPWR) averaged -3.03%, suggesting the move was at least partly sector-wide.
- Nasdaq lists the next earnings announcement as: Nov 03, 2026.
ALAB move in numbers
| Metric | Value |
|---|---|
| Close | $285.82 |
| Previous close | $301.98 |
| Change ($) | -$16.16 |
| Change (%) | -5.35% |
| Day high / low | $294.80 / $282.79 |
| Volume | 4,168,627 |
| 50-day average volume | 3,921,360 |
| 52-week high / low | $499.48 / $97.89 |
| Above 52-week low | +192.0% |
| 50-day average price | $315.33 |
| 200-day average price | $249.81 |
Last 10 sessions
| Date | Close | Change | Volume |
|---|---|---|---|
| Oct 16, 2026 | $285.82 | -5.35% | 4,168,627 |
| Oct 15, 2026 | $301.98 | +0.57% | 4,255,027 |
| Oct 14, 2026 | $300.28 | -7.72% | 4,605,552 |
| Oct 13, 2026 | $325.41 | +0.40% | 3,438,967 |
| Oct 12, 2026 | $324.11 | -5.29% | 3,741,144 |
| Oct 9, 2026 | $342.21 | -1.39% | 4,069,981 |
| Oct 8, 2026 | $347.05 | -9.21% | 6,454,649 |
| Oct 7, 2026 | $382.25 | -1.94% | 5,029,495 |
| Oct 6, 2026 | $389.80 | +7.58% | 6,516,141 |
| Oct 5, 2026 | $362.34 | +3.43% | 3,256,927 |
Peers in Semiconductors
| Company | Close Oct 16, 2026 | Change |
|---|---|---|
| UMC United Microelectronics Corporation (NEW) | $19.82 | -5.26% |
| NXPI NXP Semiconductors | $229.33 | -0.76% |
| MPWR Monolithic Power Systems | $1,210.86 | -3.07% |
Bull vs bear points from the data
Bull points
- Above its 200-day average ($249.81), the long-term trend line.
Bear points
- Closed below its 50-day average price ($315.33).
- Still 42.8% below its 52-week high of $499.48.
- Down 16.5% over the last five sessions.
Points are computed from price, volume and filing data only; they are not forecasts or recommendations.
Latest SEC filings for ALAB
| Form | Filed | Detail | Link |
|---|---|---|---|
| 4 | Oct 9, 2026 | FORM 4 | EDGAR |
| 4 | Oct 9, 2026 | FORM 4 | EDGAR |
| 4 | Oct 9, 2026 | EDGAR | |
| 4 | Sep 3, 2026 | EDGAR | |
| 4 | Sep 3, 2026 | FORM 4 | EDGAR |
| 4 | Aug 19, 2026 | FORM 4 | EDGAR |
For the full picture, including financials from SEC filings and insider trades, see our ALAB stock analysis.
Sources
- SEC EDGAR: Astera Labs Form 4 filing index (filed Oct 9, 2026)
- SEC EDGAR: Astera Labs Form 4 filing index (filed Oct 9, 2026)
- SEC EDGAR: Astera Labs Form 4 filing index (filed Oct 9, 2026)
- SEC EDGAR: Astera Labs Form 4 filing index (filed Sep 3, 2026)
- SEC EDGAR: Astera Labs Form 4 filing index (filed Sep 3, 2026)
- SEC EDGAR: Astera Labs Form 4 filing index (filed Aug 19, 2026)
- Nasdaq: ALAB historical prices and volume (daily data through Oct 16, 2026 close, retrieved Oct 19, 2026)
- Nasdaq: UMC historical prices (peer) (Oct 16, 2026 close)
- Nasdaq: NXPI historical prices (peer) (Oct 16, 2026 close)
- Nasdaq: MPWR historical prices (peer) (Oct 16, 2026 close)
- Nasdaq: ALAB earnings date (retrieved Oct 19, 2026)