Loading
Learn
Tools hub
Financial Calculators
Private, in-browser — no account required.
NasdaqGS · Technology · Historical Data
Daily ALAB open, high, low, close, and volume bars. Split-adjusted closes by default; return, range, and realised volatility are computed from the same series.
Trend read
ALAB sits in the top 0% of its 52-week range. Stocks holding above the upper band of their range tend to attract trend-followers; the cleanest signal here is whether realised vol is rising with price (continuation) or compressing (consolidation).
| Date | High | Low | Close | Return | Volume |
|---|---|---|---|---|---|
| 2026-05-20 | $287.70 | $250.44 | $287.48 | +17.69% | 10,102,085 |
| 2026-05-19 | $255.96 | $210.55 | $244.26 | +13.30% | 9,430,500 |
| 2026-05-18 | $236.70 | $210.02 | $215.58 | -7.35% | 6,161,300 |
| 2026-05-15 | $239.76 | $210.42 | $232.68 | +1.77% | 5,941,800 |
| 2026-05-14 | $230.33 | $215.80 | $228.64 | +2.03% | 4,615,000 |
| 2026-05-13 | $224.76 | $204.55 | $224.09 | +9.62% | 6,415,600 |
| 2026-05-12 | $214.41 | $192.60 | $204.42 | -1.41% | 5,053,800 |
| 2026-05-11 | $208.36 | $195.88 | $207.35 | +3.78% | 5,615,400 |
| 2026-05-08 | $203.50 | $189.69 | $199.79 | +2.12% | 4,610,100 |
| 2026-05-07 | $213.49 | $192.33 | $195.65 | -8.54% | 6,551,400 |
| 2026-05-06 | $231.73 | $202.18 | $213.91 | -0.83% | 8,553,000 |
| 2026-05-05 | $220.79 | $207.32 | $215.69 | +7.18% | 8,142,500 |
| 2026-05-04 | $209.38 | $199.81 | $201.25 | -0.71% | 4,155,500 |
| 2026-05-01 | $205.10 | $192.59 | $202.68 | +4.08% | 4,343,600 |
| 2026-04-30 | $200.46 | $184.21 | $194.74 | -1.07% | 5,152,000 |
| 2026-04-29 | $196.97 | $181.88 | $196.85 | +7.39% | 4,959,700 |
| 2026-04-28 | $190.10 | $179.54 | $183.31 | -6.78% | 4,965,300 |
| 2026-04-27 | $210.92 | $193.21 | $196.64 | -7.61% | 5,422,500 |
| 2026-04-24 | $214.24 | $202.62 | $212.84 | +7.75% | 6,661,900 |
| 2026-04-23 | $204.49 | $190.10 | $197.54 | +1.79% | 5,396,500 |
| 2026-04-22 | $200.21 | $187.24 | $194.06 | +1.09% | 6,144,200 |
| 2026-04-21 | $196.77 | $183.50 | $191.97 | +9.20% | 10,877,800 |
| 2026-04-20 | $176.97 | $168.20 | $175.80 | +1.01% | 4,180,500 |
| 2026-04-17 | $175.05 | $167.24 | $174.05 | +1.90% | 5,165,900 |
| 2026-04-16 | $173.58 | $161.05 | $170.81 | -0.74% | 4,529,200 |
| 2026-04-15 | $175.60 | $165.94 | $172.09 | +0.87% | 5,064,600 |
| 2026-04-14 | $171.92 | $158.50 | $170.60 | +2.28% | 7,658,900 |
| 2026-04-13 | $167.39 | $150.30 | $166.79 | +11.91% | 10,035,200 |
| 2026-04-10 | $151.38 | $134.52 | $149.05 | +15.13% | 10,909,500 |
| 2026-04-09 | $129.68 | $123.50 | $129.46 | +3.19% | 3,766,900 |
Showing the most recent 30 sessions. Total 252 bars available.
Frequently asked
The ALAB Historical Data page renders OHLCV (open / high / low / close / volume) rows and return calculations. The Chart page is the visual companion for longer timeframes.
TECHi shows 1 year of daily ALAB bars by default; the underlying provider feed reaches back to Astera Labs, Inc's IPO date. MAX-timeframe loads the full history for chart visualisation.
Yes — TECHi displays split-adjusted closes by default so the visual story is not broken by a stock split. The page labels the historical series used for return and volatility calculations.
Total-return calculations (price + reinvested dividends) ride on the same OHLCV table; the column labelled "Total return" backs out the dividend reinvestment so backtests stay honest.
