Alphabet: a 9.1σ fall on 29 October 2026
Recorded 31 October 2026On 29 October 2026 Alphabet fell 12.64% close to close, 9.1 times its typical daily move of 1.39% over the 20 sessions before it: larger than every one of the 66 sessions on record before it. 48 other instruments of the 198 measured that day moved 2σ or more.
The day
Daily closes, as recorded the night after
- Move
- −12.64%
- Size
- −9.1σ
- Typical day before it
- 1.39%
- Close
- 283.82
- Previous close, 28 October 2026
- 324.89
- Since, to 6 November 2026
- +0.34%
Alphabet, the 30 sessions to 29 October 2026
Daily closes; the last point is the quake
Show values
| Point | GOOGL |
|---|---|
| 17 Sep 2026 | 347 |
| 18 Sep 2026 | 350 |
| 21 Sep 2026 | 355 |
| 22 Sep 2026 | 351 |
| 23 Sep 2026 | 338 |
| 24 Sep 2026 | 342 |
| 25 Sep 2026 | 344 |
| 28 Sep 2026 | 343 |
| 29 Sep 2026 | 341 |
| 30 Sep 2026 | 344 |
| 1 Oct 2026 | 338 |
| 2 Oct 2026 | 344 |
| 5 Oct 2026 | 346 |
| 6 Oct 2026 | 348 |
| 7 Oct 2026 | 351 |
| 8 Oct 2026 | 348 |
| 9 Oct 2026 | 352 |
| 12 Oct 2026 | 353 |
| 13 Oct 2026 | 354 |
| 14 Oct 2026 | 348 |
| 15 Oct 2026 | 349 |
| 16 Oct 2026 | 341 |
| 19 Oct 2026 | 344 |
| 20 Oct 2026 | 340 |
| 21 Oct 2026 | 335 |
| 22 Oct 2026 | 324 |
| 23 Oct 2026 | 320 |
| 26 Oct 2026 | 317 |
| 27 Oct 2026 | 321 |
| 28 Oct 2026 | 325 |
| 29 Oct 2026 | 284 |
The same day
Other quakes on 29 October 2026
| Instrument | Move | Size |
|---|---|---|
| TRON TRX | +6.37% | +11.5σ |
| BNB BNB | −8.04% | −6.5σ |
| Euro / New Zealand Dollar EUR/NZD | +1.17% | +6.5σ |
| US Dollar / Israeli Shekel USD/ILS | +3.31% | +5.0σ |
| British Pound / New Zealand Dollar GBP/NZD | +1.07% | +4.5σ |
| Chainlink LINK | −10.18% | −4.4σ |
| New Zealand Dollar / Canadian Dollar NZD/CAD | −1.32% | −4.1σ |
| Solana SOL | −6.66% | −4.0σ |
| Caterpillar CAT | −9.25% | −3.8σ |
| Aave AAVE | −10.62% | −3.7σ |
| Australian Dollar / New Zealand Dollar AUD/NZD | +1.30% | +3.7σ |
| Mastercard MA | +4.16% | +3.7σ |
| US Dollar / Norwegian Krone USD/NOK | −0.91% | −3.7σ |
| Eli Lilly LLY | +6.63% | +3.6σ |
| Algorand ALGO | −10.48% | −3.4σ |
| XRP XRP | −6.75% | −3.4σ |
| Bitcoin BTC | −4.30% | −3.3σ |
| Euro / Norwegian Krone EUR/NOK | −0.66% | −3.3σ |
| Marvell Technology MRVL | −13.24% | −3.3σ |
| Hedera HBAR | −7.88% | −3.2σ |
| Avalanche AVAX | −8.06% | −3.0σ |
| Litecoin LTC | −7.16% | −3.0σ |
Alphabet's other quakes
On record, newest first
- 23 July 2026: −7.13%, −3.4σ
How it is measured
The move is the close-to-close return; its size is that return divided by the standard deviation of Alphabet's previous 20 daily returns. A quake is 3σ or more. This record was made the night after the day finished trading and has not been changed since. The live chart is on Alphabet's page; the last few months of every market's daily moves are on the volatility terrain, and every quake on record is in the quake archive.