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Stock Seasonality for Amkor Technology (AMKR)

Amkor Technology (AMKR) historical monthly and quarterly returns. Dividend-adjusted performance data.

Amkor Technology (AMKR) seasonality heatmap

Returns across monthly, quarterly, and yearly periods. Cell color encodes signed magnitude; the scale auto-fits each table.

2026

Jan+22.4%
Feb-1.1%
Mar-5.7%
Apr+54.9%
May-0.3%
Jun+19.0%
Jul
Aug
Sep
Oct
Nov
Dec

2025

Jan-4.2%
Feb-14.3%
Mar-14.0%
Apr-3.4%
May+3.2%
Jun+17.0%
Jul+7.5%
Aug+7.2%
Sep+17.8%
Oct+13.6%
Nov+12.8%
Dec+8.7%

2024

Jan-4.9%
Feb-2.0%
Mar+4.2%
Apr+0.4%
May+0.7%
Jun+23.1%
Jul-18.4%
Aug+0.7%
Sep-6.8%
Oct-16.8%
Nov+3.9%
Dec-1.1%

2023

Jan+22.0%
Feb-11.7%
Mar+1.0%
Apr-14.0%
May+10.8%
Jun+20.4%
Jul-2.2%
Aug-3.9%
Sep-18.9%
Oct-7.7%
Nov+35.0%
Dec+18.4%

2022

Jan-11.2%
Feb+3.2%
Mar-4.2%
Apr-13.4%
May+8.6%
Jun-16.8%
Jul+19.0%
Aug-0.2%
Sep-15.1%
Oct+22.0%
Nov+34.8%
Dec-14.2%

2021

Jan+2.9%
Feb+54.3%
Mar-0.8%
Apr-14.7%
May+4.3%
Jun+12.4%
Jul+4.1%
Aug+11.5%
Sep-9.1%
Oct-12.2%
Nov-1.6%
Dec+15.2%

2020

Jan-13.4%
Feb-7.3%
Mar-25.4%
Apr+26.8%
May+7.1%
Jun+16.4%
Jul+10.5%
Aug-10.3%
Sep-8.2%
Oct+5.8%
Nov+24.4%
Dec+2.6%

2019

Jan+22.0%
Feb+9.7%
Mar-2.7%
Apr+6.0%
May-28.5%
Jun+15.1%
Jul+23.8%
Aug-5.2%
Sep+4.1%
Oct+36.5%
Nov-2.7%
Dec+7.5%

2018

Jan+0.1%
Feb-0.1%
Mar+0.9%
Apr-18.3%
May+9.9%
Jun-5.7%
Jul+1.1%
Aug+0.5%
Sep-15.3%
Oct-3.2%
Nov-4.2%
Dec-4.2%

2017

Jan-10.8%
Feb+4.3%
Mar+18.0%
Apr+1.7%
May-3.7%
Jun-13.9%
Jul+6.2%
Aug-15.4%
Sep+20.2%
Oct+9.6%
Nov-8.7%
Dec-4.9%

2016

Jan+1.1%
Feb-17.7%
Mar+16.4%
Apr-2.9%
May+10.4%
Jun-8.9%
Jul+9.6%
Aug+44.6%
Sep+6.7%
Oct-4.5%
Nov+27.5%
Dec-10.7%

2015

Jan-10.6%
Feb+53.2%
Mar-9.1%
Apr-20.6%
May-3.8%
Jun-11.5%
Jul-26.3%
Aug+22.4%
Sep-16.9%
Oct+38.6%
Nov+9.3%
Dec-10.6%

2014

Jan-13.5%
Feb+11.6%
Mar+16.0%
Apr+15.8%
May+27.2%
Jun+10.5%
Jul-20.8%
Aug+17.5%
Sep-19.1%
Oct-19.4%
Nov-1.3%
Dec+6.1%

2013

Jan+9.1%
Feb-12.3%
Mar-1.3%
Apr+5.9%
May+7.1%
Jun-7.3%
Jul+0.3%
Aug-4.8%
Sep+6.7%
Oct+24.1%
Nov+13.0%
Dec+2.2%

2012

Jan+31.6%
Feb+11.4%
Mar-3.7%
Apr-15.9%
May-8.5%
Jun+3.2%
Jul+9.0%
Aug-11.9%
Sep-5.7%
Oct-2.2%
Nov-2.2%
Dec+0.3%

2011

Jan+9.9%
Feb-9.5%
Mar-8.6%
Apr-0.5%
May-4.7%
Jun-3.5%
Jul-13.4%
Aug-18.5%
Sep+0.2%
Oct+11.1%
Nov-8.2%
Dec-1.9%

2010

Jan-20.5%
Feb+5.9%
Mar+17.5%
Apr+6.5%
May-9.7%
Jun-19.1%
Jul+4.7%
Aug-11.9%
Sep+29.4%
Oct+10.0%
Nov-3.7%
Dec+6.5%

2009

Jan+6.4%
Feb-26.4%
Mar+57.2%
Apr+60.4%
May+5.0%
Jun+4.3%
Jul+32.6%
Aug-11.5%
Sep+24.1%
Oct-19.9%
Nov+0.8%
Dec+28.9%

2008

Jan-10.5%
Feb+53.2%
Mar-8.5%
Apr-10.8%
May+11.6%
Jun-2.3%
Jul-15.9%
Aug-14.3%
Sep-15.2%
Oct-36.3%
Nov-45.9%
Dec-0.5%

2007

Jan+12.8%
Feb+9.5%
Mar+8.2%
Apr+12.1%
May+1.7%
Jun+10.7%
Jul-21.5%
Aug-6.8%
Sep+0.0%
Oct-1.7%
Nov-27.3%
Dec+3.5%

2006

Jan+0.6%
Feb+57.7%
Mar-2.7%
Apr+40.0%
May-21.4%
Jun-0.6%
Jul-34.7%
Aug-8.2%
Sep-9.1%
Oct+34.0%
Nov+48.1%
Dec-8.7%

2005

Jan-33.7%
Feb-1.5%
Mar-11.6%
Apr-16.4%
May+10.3%
Jun+27.2%
Jul+2.9%
Aug+9.5%
Sep-14.6%
Oct+21.2%
Nov+17.3%
Dec-9.7%

2004

Jan-4.2%
Feb-11.9%
Mar-4.5%
Apr-45.1%
May+27.8%
Jun-20.4%
Jul-50.5%
Aug-6.1%
Sep-4.0%
Oct+36.6%
Nov+10.4%
Dec+21.5%

2003

Jan+2.9%
Feb-3.1%
Mar+9.1%
Apr+46.4%
May+46.9%
Jun+18.3%
Jul+11.5%
Aug+19.7%
Sep-19.1%
Oct+32.6%
Nov+3.5%
Dec-7.1%

2002

Jan+12.5%
Feb-23.0%
Mar+60.8%
Apr-9.9%
May-26.0%
Jun-58.2%
Jul-36.7%
Aug-42.9%
Sep+5.7%
Oct+48.0%
Nov+106.4%
Dec-34.5%

2001

Jan+46.5%
Feb-28.3%
Mar+0.0%
Apr+33.4%
May-10.2%
Jun+13.2%
Jul-17.6%
Aug-10.0%
Sep-35.7%
Oct+18.3%
Nov+25.1%
Dec+3.0%

2000

Jan+12.4%
Feb+63.6%
Mar+2.2%
Apr+15.3%
May-26.9%
Jun-21.1%
Jul-22.1%
Aug+24.1%
Sep-23.4%
Oct-13.9%
Nov-29.1%
Dec-2.6%

1999

Jan+6.9%
Feb-9.1%
Mar-25.0%
Apr+23.8%
May-5.1%
Jun+10.8%
Jul+49.9%
Aug+14.7%
Sep-8.5%
Oct+25.2%
Nov+33.7%
Dec+4.6%

1998

Jan
Feb
Mar
Apr
May
Jun-10.1%
Jul-20.6%
Aug-37.6%
Sep+5.6%
Oct+0.0%
Nov+29.1%
Dec+71.5%

Avg

Jan+3.0%
Feb+5.7%
Mar+3.0%
Apr+5.8%
May+1.6%
Jun+0.1%
Jul-3.9%
Aug-1.7%
Sep-4.4%
Oct+8.9%
Nov+10.7%
Dec+3.2%

Median

Jan+2.0%
Feb-1.3%
Mar-1.0%
Apr+1.0%
May+2.5%
Jun+1.3%
Jul+0.7%
Aug-5.0%
Sep-7.5%
Oct+9.8%
Nov+6.6%
Dec+1.2%

Last 5Y Avg

Jan+4.8%
Feb-5.2%
Mar-3.7%
Apr+4.9%
May+4.6%
Jun+11.2%
Jul+2.0%
Aug+3.1%
Sep-6.4%
Oct-0.2%
Nov+17.0%
Dec+5.4%

Std Dev (σ)

Jan16.7%
Feb26.4%
Mar19.2%
Apr24.9%
May16.6%
Jun18.3%
Jul22.2%
Aug18.3%
Sep15.3%
Oct21.3%
Nov28.3%
Dec18.1%

Consistency (μ/σ)

Jan0.18
Feb0.21
Mar0.16
Apr0.23
May0.09
Jun0.01
Jul-0.17
Aug-0.09
Sep-0.29
Oct0.42
Nov0.38
Dec0.18

Win Rate (%)

Jan61%
Feb43%
Mar43%
Apr54%
May57%
Jun50%
Jul54%
Aug39%
Sep36%
Oct57%
Nov61%
Dec54%

Winning / Losing Months

Jan1711
Feb1216
Mar1216
Apr1513
May1612
Jun1414
Jul1513
Aug1117
Sep1018
Oct1612
Nov1711
Dec1513

Longest Win / Loss Streak

Jan52
Feb35
Mar34
Apr33
May64
Jun34
Jul73
Aug38
Sep36
Oct63
Nov63
Dec34

Best

Jan+46.5%2001
Feb+63.6%2000
Mar+60.8%2002
Apr+60.4%2009
May+46.9%2003
Jun+27.2%2005
Jul+49.9%1999
Aug+44.6%2016
Sep+29.4%2010
Oct+48.0%2002
Nov+106.4%2002
Dec+71.5%1998

Worst

Jan-33.7%2005
Feb-28.3%2001
Mar-25.4%2020
Apr-45.1%2004
May-28.5%2019
Jun-58.2%2002
Jul-50.5%2004
Aug-42.9%2002
Sep-35.7%2001
Oct-36.3%2008
Nov-45.9%2008
Dec-34.5%2002
−58.2%+106.4%

Frequently asked questions

Data & methodology