All charts and data below are CPI-U inflation-adjusted and with dividends reinvested. (Why?)

Total Real Returns

AMPL: Total Real Return Chart (Dividends Reinvested, Inflation Adjusted)

AMPL real return snapshot: after CPI-U inflation, AMPL returned +66.40% over the past year and +41.46% YTD, with dividends reinvested. Since Sep. 28, 2021, AMPL is down −74.70% in real purchasing-power return, or −23.76%/yr, and is currently −83.49% below its real total-return high on Nov. 9, 2021.

Data ending Thu Oct. 22, 2026

Growth of $10,000

Tue 2021-09-28💬 to Thu 2026-10-22 Overall
Return 		Exponential
Trendline
AMPL × 		−74.70%
−23.76%/yr 		−22.95%/yr
R2=0.516
Amplitude Inc NASDAQ Common Stock

Growth of $10,000 Summary

Tue 2021-09-28💬 to Thu 2026-10-22 Start
Value 		End
Value
AMPL × 		$10,000.00
2021-09-28 		$2,529.97
2026-10-22

This Year’s Performance

through 2026-10-22

  YTD YoY
AMPL × 		+41.46% +66.40%

Drawdowns

  Current
Drawdown 		Worst
Drawdown
AMPL × 		−83.49%
on 2026-10-22
from 2021-11-09 peak 		−94.47%
on 2026-04-10
from 2021-11-09 peak

Rolling Returns

Period ending Thu 2026-10-22 1 yr 2 yr 3 yr 5 yr 10 yr
AMPL × 		+66.40% +76.65%
+32.91%/yr 		+50.73%
+14.66%/yr 		−79.31%
−27.03%/yr 		—

Annual Returns

Year AMPL
2026 (YTD) +41.46%
2025 +6.90%
2024 −19.38%
2023 +1.89%
2022 −78.57%
2021 −4.97%