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 +41.82% over the past year and +23.91% YTD, with dividends reinvested. Since Sep. 28, 2021, AMPL is down −77.84% in real purchasing-power return, or −25.94%/yr, and is currently −85.54% below its real total-return high on Nov. 9, 2021.

Data ending Mon Oct. 5, 2026

Growth of $10,000

Tue 2021-09-28💬 to Mon 2026-10-05 Overall
Return 		Exponential
Trendline
AMPL × 		−77.84%
−25.94%/yr 		−23.68%/yr
R2=0.538
Amplitude Inc NASDAQ Common Stock

Growth of $10,000 Summary

Tue 2021-09-28💬 to Mon 2026-10-05 Start
Value 		End
Value
AMPL × 		$10,000.00
2021-09-28 		$2,216.03
2026-10-05

This Year’s Performance

through 2026-10-05

  YTD YoY
AMPL × 		+23.91% +41.82%

Drawdowns

  Current
Drawdown 		Worst
Drawdown
AMPL × 		−85.54%
on 2026-10-05
from 2021-11-09 peak 		−94.47%
on 2026-04-10
from 2021-11-09 peak

Rolling Returns

Period ending Mon 2026-10-05 1 yr 2 yr 3 yr 5 yr 10 yr
AMPL × 		+41.82% +55.49%
+24.70%/yr 		+26.53%
+8.16%/yr 		−76.72%
−25.29%/yr 		—

Annual Returns

Year AMPL
2026 (YTD) +23.91%
2025 +6.90%
2024 −19.38%
2023 +1.89%
2022 −78.57%
2021 −4.97%