Ameren Illinois Co (AILLP) stock
AILLPOTCElectric & Other Services CombinedFiscal year ends December 31Also trades as AILIH, AILIM, AILIN, AILIO, AILIP, AILLI, AILLM, AILLN, AILLO
Last filing: 10-Q on Aug 3, 2026
$60.54+0.24 (+0.39%)
Close on Oct 19, 2026Market cap –P/E –Yield –
Price history
Ameren Illinois share prices for every month, newest first. Adjusted for stock splits, not for dividends.
Close, Oct 19, 2026
$60.54
+0.39% on the day
52-week range
$60.30 – $70.00
-13.5% from the high
Change over 52 weeks
-9.6%
From $67.00 on Oct 17, 2025
Average volume
224
Shares a day, last 90 sessions
| Month | Open | High | Low | Close | Change | Volume |
|---|---|---|---|---|---|---|
| Oct 2026 | $61.76 | $61.76 | $60.30 | $60.54 | -2.28% | 630 |
| Sep 2026 | $62.75 | $63.50 | $61.75 | $61.95 | -1.27% | 3,859 |
| Aug 2026 | $63.90 | $64.00 | $62.23 | $62.75 | -1.80% | 3,649 |
| Jul 2026 | $64.55 | $65.04 | $63.55 | $63.90 | -1.01% | 8,609 |
| Jun 2026 | $68.00 | $68.00 | $63.78 | $64.55 | +0.08% | 4,876 |
| May 2026 | $64.50 | $67.25 | $64.28 | $64.50 | 0.00% | 2,749 |
| Apr 2026 | $69.50 | $69.50 | $64.50 | $64.50 | -7.19% | 1,490 |
| Mar 2026 | $69.50 | $69.50 | $69.50 | $69.50 | 0.00% | 0 |
| Feb 2026 | $67.00 | $69.50 | $64.70 | $69.50 | +5.70% | 2,673 |
| Jan 2026 | $67.50 | $67.50 | $65.00 | $65.75 | -2.59% | 1,906 |
| Dec 2025 | $66.50 | $70.00 | $65.75 | $67.50 | +1.50% | 1,978 |
| Nov 2025 | $67.00 | $67.00 | $65.50 | $66.50 | -0.75% | 1,107 |
| Oct 2025 | $65.62 | $67.25 | $65.62 | $67.00 | +2.10% | 4,196 |
| Sep 2025 | $64.52 | $65.73 | $63.75 | $65.62 | +1.70% | 1,255 |
| Aug 2025 | $64.00 | $66.00 | $63.46 | $64.52 | -1.12% | 3,259 |
| Jul 2025 | $65.60 | $68.61 | $62.75 | $65.25 | -0.53% | 4,377 |
| Jun 2025 | $62.55 | $65.60 | $62.55 | $65.60 | +4.13% | 2,311 |
| May 2025 | $63.28 | $65.44 | $62.87 | $63.00 | -2.40% | 2,795 |
| Apr 2025 | $66.00 | $66.95 | $63.00 | $64.55 | -2.20% | 3,467 |
| Mar 2025 | $66.00 | $68.70 | $66.00 | $66.00 | 0.00% | 1,262 |
| Feb 2025 | $64.50 | $66.00 | $64.00 | $66.00 | +0.76% | 4,285 |
| Jan 2025 | $64.80 | $74.75 | $64.56 | $65.50 | -0.61% | 2,642 |
| Dec 2024 | $65.91 | $68.32 | $65.90 | $65.90 | -0.02% | 2,270 |
| Nov 2024 | $67.00 | $67.00 | $65.10 | $65.91 | -1.63% | 4,476 |
| Oct 2024 | $70.82 | $73.24 | $67.00 | $67.00 | -5.39% | 3,915 |
| Sep 2024 | $67.50 | $71.25 | $67.50 | $70.82 | +4.92% | 800 |
| Aug 2024 | $64.00 | $67.51 | $63.30 | $67.50 | +3.85% | 3,400 |
| Jul 2024 | $64.10 | $66.95 | $64.10 | $65.00 | +1.40% | 3,300 |
| Jun 2024 | $65.00 | $66.10 | $63.50 | $64.10 | -1.38% | 2,400 |
| May 2024 | $63.99 | $65.25 | $63.99 | $65.00 | +1.58% | 4,000 |
| Apr 2024 | $66.50 | $67.90 | $63.11 | $63.99 | -2.38% | 4,500 |
| Mar 2024 | $66.50 | $66.50 | $65.00 | $65.55 | -0.68% | 1,400 |
| Feb 2024 | $66.03 | $66.20 | $64.80 | $66.00 | -0.05% | 4,400 |
| Jan 2024 | $65.00 | $66.20 | $63.07 | $66.03 | +1.58% | 6,000 |
| Dec 2023 | $61.00 | $65.20 | $61.00 | $65.00 | +6.56% | 3,000 |
| Nov 2023 | $61.00 | $61.00 | $61.00 | $61.00 | 0.00% | 0 |
| Oct 2023 | $66.50 | $66.50 | $60.50 | $61.00 | -8.96% | 1,500 |
| Sep 2023 | $68.33 | $70.00 | $66.50 | $67.00 | -1.95% | 2,500 |
| Aug 2023 | $71.50 | $74.00 | $68.33 | $68.33 | -4.43% | 800 |
| Jul 2023 | $75.00 | $75.00 | $71.50 | $71.50 | -4.67% | 400 |
| Jun 2023 | $74.25 | $75.00 | $73.09 | $75.00 | +1.01% | 1,200 |
| May 2023 | $73.00 | $74.50 | $73.00 | $74.25 | +0.34% | 800 |
| Apr 2023 | $74.00 | $74.00 | $73.04 | $74.00 | 0.00% | 200 |
| Mar 2023 | $75.50 | $77.00 | $72.00 | $74.00 | -1.99% | 2,000 |
| Feb 2023 | $75.00 | $76.00 | $74.00 | $75.50 | +0.67% | 5,000 |
| Jan 2023 | $75.00 | $75.00 | $75.00 | $75.00 | 0.00% | 300 |
| Dec 2022 | $75.00 | $75.00 | $75.00 | $75.00 | 0.00% | 100 |
| Nov 2022 | $81.20 | $81.20 | $75.00 | $75.00 | -7.64% | 800 |
| Oct 2022 | $81.00 | $82.25 | $81.00 | $81.20 | +0.25% | 900 |
| Sep 2022 | $81.00 | $81.00 | $81.00 | $81.00 | 0.00% | 400 |
| Aug 2022 | $77.00 | $81.00 | $77.00 | $81.00 | +5.19% | 1,500 |
| Jul 2022 | $80.00 | $83.00 | $77.00 | $77.00 | -3.75% | 700 |
| Jun 2022 | $83.99 | $83.99 | $78.00 | $80.00 | -4.75% | 400 |
| May 2022 | $88.00 | $88.00 | $80.00 | $83.99 | -4.56% | 1,400 |
| Apr 2022 | $91.02 | $92.10 | $88.00 | $88.00 | -5.38% | 1,000 |
| Mar 2022 | $93.00 | $93.00 | $93.00 | $93.00 | 0.00% | 300 |
| Feb 2022 | $97.49 | $97.49 | $93.00 | $93.00 | -4.61% | 1,000 |
| Jan 2022 | $97.49 | $97.49 | $97.49 | $97.49 | 0.00% | 0 |
| Dec 2021 | $96.00 | $97.49 | $94.25 | $97.49 | +1.55% | 3,500 |
| Nov 2021 | $99.99 | $99.99 | $94.75 | $96.00 | -3.99% | 900 |
| Oct 2021 | $97.75 | $99.99 | $97.01 | $99.99 | +2.29% | 800 |
| Sep 2021 | $97.75 | $97.75 | $97.75 | $97.75 | 0.00% | 0 |
| Aug 2021 | $97.04 | $123.00 | $96.50 | $97.75 | +1.82% | 1,600 |
| Jul 2021 | $97.25 | $99.04 | $95.26 | $96.00 | -1.29% | 600 |
| Jun 2021 | $97.25 | $97.25 | $97.25 | $97.25 | 0.00% | 0 |
| May 2021 | $97.20 | $97.30 | $97.20 | $97.25 | +0.05% | 200 |
| Apr 2021 | $96.00 | $99.50 | $95.60 | $97.20 | +1.25% | 2,700 |
| Mar 2021 | $97.25 | $97.50 | $93.50 | $96.00 | -1.29% | 1,500 |
| Feb 2021 | $99.75 | $99.75 | $97.25 | $97.25 | -2.51% | 500 |
| Jan 2021 | $99.90 | $99.90 | $98.77 | $99.75 | -0.15% | 700 |
| Dec 2020 | $98.50 | $101.00 | $98.50 | $99.90 | +1.42% | 700 |
| Nov 2020 | $99.01 | $100.00 | $97.00 | $98.50 | -1.50% | 2,900 |
| Oct 2020 | $100.00 | $100.00 | $99.05 | $100.00 | 0.00% | 700 |
| Sep 2020 | $94.54 | $100.00 | $94.54 | $100.00 | +5.78% | 600 |
| Aug 2020 | $95.35 | $100.00 | $94.54 | $94.54 | -0.85% | 300 |
| Jul 2020 | $95.50 | $95.50 | $94.52 | $95.35 | -0.16% | 200 |
| Jun 2020 | $93.50 | $95.50 | $93.02 | $95.50 | +2.14% | 500 |
| May 2020 | $92.50 | $93.50 | $91.50 | $93.50 | +1.08% | 3,600 |
| Apr 2020 | $93.00 | $93.00 | $89.51 | $92.50 | -0.54% | 400 |
| Mar 2020 | $95.00 | $97.50 | $91.00 | $93.00 | -2.11% | 2,100 |
| Feb 2020 | $95.30 | $95.30 | $93.00 | $95.00 | -0.31% | 200 |
| Jan 2020 | $95.30 | $95.30 | $95.30 | $95.30 | 0.00% | 0 |
| Dec 2019 | $95.85 | $95.85 | $93.01 | $95.30 | -0.57% | 900 |
| Nov 2019 | $93.50 | $95.85 | $93.50 | $95.85 | +2.51% | 600 |
| Oct 2019 | $93.50 | $94.01 | $93.00 | $93.50 | 0.00% | 900 |
| Sep 2019 | $95.00 | $95.00 | $93.50 | $93.50 | -1.58% | 400 |
| Aug 2019 | $94.00 | $95.00 | $93.50 | $95.00 | +1.06% | 900 |
| Jul 2019 | $94.00 | $94.00 | $92.01 | $94.00 | 0.00% | 1,600 |
| Jun 2019 | $94.00 | $95.30 | $94.00 | $94.00 | 0.00% | 700 |
| May 2019 | $93.75 | $94.00 | $90.99 | $94.00 | +0.27% | 1,700 |
| Apr 2019 | $94.00 | $94.00 | $89.02 | $93.75 | +0.54% | 1,900 |
| Mar 2019 | $93.25 | $93.25 | $93.25 | $93.25 | 0.00% | 500 |
| Feb 2019 | $92.00 | $93.25 | $92.00 | $93.25 | +1.36% | 1,100 |
| Jan 2019 | $92.00 | $92.00 | $92.00 | $92.00 | 0.00% | 400 |
| Dec 2018 | $92.50 | $93.50 | $90.10 | $92.00 | -1.60% | 3,500 |
| Nov 2018 | $93.00 | $94.00 | $92.30 | $93.50 | +0.54% | 1,800 |
| Oct 2018 | $91.50 | $93.25 | $91.00 | $93.00 | +3.33% | 1,500 |
| Sep 2018 | $89.50 | $93.00 | $89.50 | $90.00 | 0.00% | 600 |
| Aug 2018 | $93.00 | $93.00 | $90.00 | $90.00 | -3.23% | 200 |
| Jul 2018 | $92.01 | $93.00 | $92.01 | $93.00 | +1.08% | 500 |
| Jun 2018 | $91.75 | $93.30 | $91.75 | $92.01 | +0.28% | 2,900 |
| May 2018 | $93.00 | $94.10 | $91.70 | $91.75 | -1.34% | 2,600 |
| Apr 2018 | $95.00 | $95.00 | $90.00 | $93.00 | -2.11% | 600 |
| Mar 2018 | $93.25 | $95.00 | $93.25 | $95.00 | +1.88% | 1,200 |
| Feb 2018 | $94.25 | $94.50 | $93.25 | $93.25 | -1.06% | 600 |
| Jan 2018 | $95.00 | $95.25 | $94.25 | $94.25 | +0.27% | 3,000 |
| Dec 2017 | $95.25 | $95.25 | $94.00 | $94.00 | -1.31% | 400 |
| Nov 2017 | $95.00 | $95.50 | $95.00 | $95.25 | +0.47% | 2,200 |
| Oct 2017 | $95.30 | $96.50 | $93.00 | $94.80 | -0.52% | 2,500 |
| Sep 2017 | $94.50 | $95.30 | $93.31 | $95.30 | +0.85% | 2,200 |
| Aug 2017 | $95.50 | $95.50 | $94.00 | $94.50 | -1.05% | 7,300 |
| Jul 2017 | $95.00 | $95.50 | $95.00 | $95.50 | +0.53% | 600 |
| Jun 2017 | $95.00 | $95.85 | $94.25 | $95.00 | 0.00% | 5,000 |
| May 2017 | $95.80 | $95.80 | $94.00 | $95.00 | -0.84% | 500 |
| Apr 2017 | $93.15 | $96.00 | $93.15 | $95.80 | +2.84% | 3,800 |
| Mar 2017 | $96.75 | $96.75 | $93.05 | $93.15 | -3.72% | 34,600 |
| Feb 2017 | $91.60 | $96.75 | $91.60 | $96.75 | +5.62% | 900 |
| Jan 2017 | $98.40 | $98.40 | $90.00 | $91.60 | -6.91% | 14,200 |
| Dec 2016 | $98.25 | $98.40 | $98.25 | $98.40 | +0.15% | 500 |
| Nov 2016 | $98.50 | $98.75 | $98.25 | $98.25 | -0.25% | 600 |
| Oct 2016 | $96.25 | $99.00 | $96.00 | $98.50 | +2.34% | 6,100 |
| Sep 2016 | $95.50 | $99.00 | $95.00 | $96.25 | +0.79% | 2,000 |
| Aug 2016 | $92.00 | $95.50 | $90.80 | $95.50 | +3.80% | 1,200 |
| Jul 2016 | $90.75 | $92.00 | $90.75 | $92.00 | +1.38% | 200 |
| Jun 2016 | $92.50 | $92.50 | $90.25 | $90.75 | -1.89% | 300 |
| May 2016 | $90.00 | $92.50 | $90.00 | $92.50 | +2.78% | 5,200 |
| Apr 2016 | $90.25 | $90.25 | $88.75 | $90.00 | -0.28% | 9,700 |
| Mar 2016 | $87.70 | $90.25 | $87.70 | $90.25 | +2.91% | 5,600 |
| Feb 2016 | $89.60 | $89.60 | $87.70 | $87.70 | -2.12% | 100 |
| Jan 2016 | $88.50 | $89.60 | $88.50 | $89.60 | +1.82% | 1,200 |
| Dec 2015 | $87.25 | $88.00 | $87.25 | $88.00 | -0.28% | 400 |
| Nov 2015 | $88.50 | $88.80 | $87.25 | $88.25 | -0.28% | 700 |
| Oct 2015 | $86.95 | $88.50 | $85.85 | $88.50 | +1.78% | 5,800 |
| Sep 2015 | $87.10 | $88.50 | $86.95 | $86.95 | -0.17% | 4,200 |
| Aug 2015 | $87.75 | $88.75 | $87.10 | $87.10 | -0.74% | 3,700 |
| Jul 2015 | $88.80 | $89.65 | $87.60 | $87.75 | -3.57% | 4,800 |
| Jun 2015 | $90.30 | $91.00 | $89.60 | $91.00 | +0.78% | 4,700 |
| May 2015 | $88.25 | $91.00 | $88.25 | $90.30 | +2.32% | 1,800 |
| Apr 2015 | $87.90 | $90.00 | $87.90 | $88.25 | +0.40% | 3,000 |
| Mar 2015 | $88.90 | $88.90 | $87.90 | $87.90 | -1.12% | 1,200 |
| Feb 2015 | $85.50 | $89.00 | $85.50 | $88.90 | +3.98% | 7,700 |
| Jan 2015 | $85.50 | $89.00 | $85.50 | $85.50 | 0.00% | 8,500 |
| Dec 2014 | $85.30 | $86.75 | $85.01 | $85.50 | +0.23% | 6,100 |
| Nov 2014 | $84.00 | $87.25 | $84.00 | $85.30 | +1.55% | 3,200 |
| Oct 2014 | $83.75 | $86.50 | $82.75 | $84.00 | +3.58% | 3,300 |
| Sep 2014 | $81.10 | $83.00 | $81.10 | $81.10 | -3.45% | 2,200 |
| Aug 2014 | $85.50 | $85.50 | $81.10 | $84.00 | -1.75% | 1,700 |
| Jul 2014 | $82.00 | $85.50 | $81.75 | $85.50 | +4.27% | 3,000 |
| Jun 2014 | $84.00 | $85.00 | $82.00 | $82.00 | -2.38% | 300 |
| May 2014 | $82.00 | $84.00 | $81.85 | $84.00 | +2.13% | 4,200 |
| Apr 2014 | $85.25 | $85.25 | $82.25 | $82.25 | -3.52% | 300 |
| Mar 2014 | $81.00 | $85.25 | $81.00 | $85.25 | +5.25% | 2,300 |
| Feb 2014 | $85.00 | $85.00 | $79.30 | $81.00 | -4.71% | 2,300 |
| Jan 2014 | $84.00 | $85.00 | $81.00 | $85.00 | +2.10% | 2,800 |
| Dec 2013 | $87.00 | $87.75 | $83.25 | $83.25 | -4.31% | 3,200 |
| Nov 2013 | $86.25 | $87.00 | $84.85 | $87.00 | +0.87% | 1,800 |
| Oct 2013 | $90.00 | $90.00 | $84.00 | $86.25 | -4.17% | 700 |
| Sep 2013 | $86.65 | $90.00 | $86.00 | $90.00 | +3.87% | 3,800 |
| Aug 2013 | $89.50 | $89.50 | $86.55 | $86.65 | -3.18% | 2,000 |
| Jul 2013 | $88.75 | $90.50 | $88.25 | $89.50 | +1.02% | 6,900 |
| Jun 2013 | $89.50 | $92.14 | $87.50 | $88.60 | -1.01% | 14,700 |
| May 2013 | $87.50 | $91.00 | $87.50 | $89.50 | +2.29% | 1,000 |
| Apr 2013 | $88.50 | $91.00 | $87.50 | $87.50 | +1.21% | 12,800 |
| Mar 2013 | $87.00 | $89.25 | $84.00 | $86.45 | +0.41% | 17,600 |
| Feb 2013 | $85.50 | $86.10 | $84.00 | $86.10 | +0.70% | 2,900 |
| Jan 2013 | $86.50 | $86.50 | $83.80 | $85.50 | -1.16% | 1,100 |
| Dec 2012 | $83.50 | $86.50 | $83.50 | $86.50 | +3.59% | 1,400 |
| Nov 2012 | $82.30 | $87.00 | $82.30 | $83.50 | +1.46% | 2,500 |
| Oct 2012 | $87.50 | $87.50 | $82.30 | $82.30 | -5.94% | 6,200 |
| Sep 2012 | $87.00 | $87.50 | $86.25 | $87.50 | +0.57% | 7,500 |
| Aug 2012 | $85.50 | $87.00 | $84.75 | $87.00 | +1.75% | 24,100 |
| Jul 2012 | $81.50 | $86.00 | $81.02 | $85.50 | +4.91% | 17,300 |
| Jun 2012 | $84.00 | $85.00 | $81.50 | $81.50 | -2.98% | 16,100 |
| May 2012 | $82.00 | $84.00 | $79.80 | $84.00 | +2.44% | 15,900 |
| Apr 2012 | $80.70 | $82.75 | $79.50 | $82.00 | +1.61% | 13,800 |
| Mar 2012 | $79.01 | $83.50 | $79.01 | $80.70 | +2.14% | 28,800 |
| Feb 2012 | $81.50 | $81.50 | $79.01 | $79.01 | -3.06% | 200 |
| Jan 2012 | $78.00 | $81.50 | $78.00 | $81.50 | +4.49% | 20,400 |
| Dec 2011 | $80.00 | $81.50 | $77.00 | $78.00 | -2.50% | 22,400 |
| Nov 2011 | $76.75 | $80.00 | $76.75 | $80.00 | +4.23% | 11,700 |
| Oct 2011 | $76.00 | $78.00 | $75.50 | $76.75 | +0.99% | 16,700 |
| Sep 2011 | $74.50 | $76.00 | $70.35 | $76.00 | +2.01% | 3,200 |
| Aug 2011 | $75.00 | $76.00 | $70.25 | $74.50 | -0.67% | 3,400 |
| Jul 2011 | $73.25 | $78.00 | $65.75 | $75.00 | +7.14% | 12,100 |
| Jun 2011 | $72.00 | $73.50 | $68.10 | $70.00 | -2.78% | 5,700 |
| May 2011 | $68.50 | $72.00 | $66.25 | $72.00 | +5.11% | 6,800 |
| Apr 2011 | $67.10 | $68.50 | $66.05 | $68.50 | +2.09% | 1,500 |
| Mar 2011 | $70.00 | $72.00 | $67.00 | $67.10 | -4.14% | 3,500 |
| Feb 2011 | $66.00 | $70.15 | $66.00 | $70.00 | +6.06% | 2,500 |
| Jan 2011 | $66.00 | $71.00 | $66.00 | $66.00 | 0.00% | 1,200 |
| Dec 2010 | $70.50 | $70.50 | $66.00 | $66.00 | -6.38% | 4,500 |
| Nov 2010 | $73.00 | $73.00 | $69.50 | $70.50 | -3.42% | 1,300 |
| Oct 2010 | $70.00 | $73.00 | $70.00 | $73.00 | +4.29% | 1,900 |
| Sep 2010 | $68.10 | $70.00 | $68.10 | $70.00 | +2.79% | 200 |
| Aug 2010 | $73.00 | $74.00 | $66.75 | $68.10 | -6.71% | 19,500 |
| Jul 2010 | $69.00 | $73.00 | $68.56 | $73.00 | +5.80% | 4,000 |
| Jun 2010 | $67.50 | $110.00 | $64.00 | $69.00 | +5.18% | 8,800 |
| May 2010 | $64.00 | $69.00 | $64.00 | $65.60 | +2.50% | 3,400 |
| Apr 2010 | $64.20 | $68.00 | $64.00 | $64.00 | -0.31% | 1,500 |
| Mar 2010 | $66.00 | $66.00 | $63.15 | $64.20 | -2.73% | 3,400 |
| Feb 2010 | $60.50 | $66.00 | $60.50 | $66.00 | +9.09% | 1,800 |
| Jan 2010 | $59.00 | $65.50 | $59.00 | $60.50 | +2.54% | 2,900 |
| Dec 2009 | $58.50 | $63.50 | $58.50 | $59.00 | +0.85% | 800 |
| Nov 2009 | $65.00 | $65.00 | $58.50 | $58.50 | 0.00% | 3,100 |
| Oct 2009 | $58.50 | $63.15 | $58.50 | $58.50 | 0.00% | 600 |
| Sep 2009 | $64.99 | $64.99 | $57.01 | $58.50 | -5.65% | 4,400 |
| Aug 2009 | $59.50 | $62.00 | $56.25 | $62.00 | +6.90% | 3,900 |
| Jul 2009 | $63.00 | $63.00 | $58.00 | $58.00 | -7.94% | 300 |
| Jun 2009 | $57.00 | $63.00 | $55.00 | $63.00 | +16.67% | 500 |
| May 2009 | $56.00 | $56.00 | $54.00 | $54.00 | -3.57% | 200 |
| Apr 2009 | $63.00 | $63.00 | $53.25 | $56.00 | -11.11% | 400 |
| Mar 2009 | $59.50 | $63.00 | $59.50 | $63.00 | +5.88% | 100 |
| Feb 2009 | $59.50 | $59.50 | $59.50 | $59.50 | 0.00% | 0 |
| Jan 2009 | $59.50 | $59.50 | $58.00 | $59.50 | 0.00% | 400 |
| Dec 2008 | $59.00 | $63.00 | $56.50 | $59.50 | +0.85% | 1,300 |
| Nov 2008 | $66.00 | $66.00 | $59.00 | $59.00 | -10.61% | 400 |
| Oct 2008 | $66.00 | $66.00 | $66.00 | $66.00 | 0.00% | 0 |
| Sep 2008 | $69.00 | $69.00 | $62.10 | $66.00 | -4.35% | 800 |
| Aug 2008 | $69.00 | $71.00 | $67.50 | $69.00 | +4.39% | 2,300 |
| Jul 2008 | $66.10 | $66.10 | $66.10 | $66.10 | 0.00% | 0 |
| Jun 2008 | $70.00 | $71.00 | $66.00 | $66.10 | -1.34% | 800 |
| May 2008 | $72.00 | $72.00 | $67.00 | $67.00 | -6.94% | 100 |
| Apr 2008 | $70.00 | $73.00 | $66.10 | $72.00 | +2.86% | 3,400 |
| Mar 2008 | $65.30 | $70.00 | $65.30 | $70.00 | +7.20% | 200 |
| Feb 2008 | $70.00 | $70.00 | $65.30 | $65.30 | -6.71% | 100 |
| Jan 2008 | $70.00 | $70.00 | $70.00 | $70.00 | -5.41% | 200 |
| Dec 2007 | $72.00 | $78.25 | $64.25 | $74.00 | +2.78% | 5,000 |
| Nov 2007 | $66.60 | $74.00 | $66.60 | $72.00 | +8.11% | 1,400 |
| Oct 2007 | $73.00 | $73.00 | $66.25 | $66.60 | -8.77% | 400 |
| Sep 2007 | $73.00 | $73.00 | $73.00 | $73.00 | 0.00% | 0 |
| Aug 2007 | $73.00 | $77.00 | $72.00 | $73.00 | 0.00% | 1,100 |
| Jul 2007 | $66.25 | $77.00 | $66.25 | $73.00 | +10.19% | 1,600 |
| Jun 2007 | $74.00 | $74.00 | $66.25 | $66.25 | -10.47% | 200 |
| May 2007 | $67.50 | $79.50 | $67.50 | $74.00 | +9.63% | 3,700 |
| Apr 2007 | $77.00 | $79.55 | $67.50 | $67.50 | -6.90% | 2,200 |
| Mar 2007 | $79.00 | $80.00 | $71.00 | $72.50 | -8.81% | 12,500 |
| Feb 2007 | $70.25 | $79.50 | $70.25 | $79.50 | +13.17% | 3,900 |
| Jan 2007 | $71.00 | $71.00 | $70.25 | $70.25 | -1.06% | 400 |
| Dec 2006 | $79.00 | $79.63 | $68.50 | $71.00 | -10.13% | 7,700 |
| Nov 2006 | $71.50 | $79.00 | $70.10 | $79.00 | +10.49% | 6,800 |
| Oct 2006 | $72.00 | $72.00 | $69.00 | $71.50 | -0.69% | 1,800 |
| Sep 2006 | $77.00 | $78.00 | $66.25 | $72.00 | -6.49% | 7,700 |
| Aug 2006 | $73.00 | $78.00 | $70.00 | $77.00 | +5.48% | 6,800 |
| Jul 2006 | $71.00 | $76.00 | $67.25 | $73.00 | +2.82% | 8,100 |
| Jun 2006 | $71.50 | $72.75 | $67.10 | $71.00 | -0.70% | 2,600 |
| May 2006 | $69.00 | $72.50 | $69.00 | $71.50 | -0.69% | 5,400 |
| Apr 2006 | $71.50 | $72.00 | $69.00 | $72.00 | +0.70% | 5,200 |
| Mar 2006 | $72.00 | $73.00 | $69.00 | $71.50 | +2.00% | 2,100 |
| Feb 2006 | $71.25 | $72.50 | $69.15 | $70.10 | -1.61% | 700 |
| Jan 2006 | $69.75 | $76.00 | $69.75 | $71.25 | +2.15% | 4,600 |
| Dec 2005 | $70.25 | $75.00 | $66.40 | $69.75 | -0.71% | 4,300 |
| Nov 2005 | $70.00 | $70.25 | $66.20 | $70.25 | +0.36% | 900 |
| Oct 2005 | $71.00 | $71.00 | $66.25 | $70.00 | -2.78% | 700 |
| Sep 2005 | $77.00 | $77.25 | $65.05 | $72.00 | -1.37% | 2,600 |
| Aug 2005 | $70.00 | $77.00 | $70.00 | $73.00 | +4.29% | 1,600 |
| Jul 2005 | $80.25 | $80.25 | $69.55 | $70.00 | -12.77% | 1,800 |
| Jun 2005 | $77.00 | $80.25 | $77.00 | $80.25 | +4.22% | 14,100 |
| May 2005 | $67.20 | $78.00 | $67.20 | $77.00 | +14.58% | 6,700 |
| Apr 2005 | $72.25 | $75.00 | $67.20 | $67.20 | +1.82% | 1,700 |
| Mar 2005 | $77.25 | $78.25 | $66.00 | $66.00 | -14.56% | 3,400 |
| Feb 2005 | $74.75 | $77.25 | $74.75 | $77.25 | +3.34% | 16,200 |
| Jan 2005 | $74.25 | $75.75 | $64.75 | $74.75 | +0.67% | 4,500 |
| Dec 2004 | $74.25 | $74.25 | $74.25 | $74.25 | 0.00% | 0 |
| Nov 2004 | $72.50 | $74.25 | $62.25 | $74.25 | +2.41% | 4,000 |
| Oct 2004 | $62.00 | $72.50 | $61.55 | $72.50 | +16.94% | 1,500 |
| Sep 2004 | $64.25 | $64.25 | $60.00 | $62.00 | -3.50% | 3,800 |
| Aug 2004 | $63.50 | $65.25 | $63.50 | $64.25 | +1.18% | 700 |
| Jul 2004 | $63.50 | $63.50 | $59.50 | $63.50 | 0.00% | 800 |
| Jun 2004 | $63.50 | $63.50 | $63.50 | $63.50 | 0.00% | 0 |
| May 2004 | $67.00 | $67.00 | $60.00 | $63.50 | -5.22% | 2,000 |
| Apr 2004 | $72.00 | $72.00 | $62.25 | $67.00 | -6.94% | 2,400 |
| Mar 2004 | $67.00 | $75.54 | $62.10 | $72.00 | +7.46% | 11,200 |
| Feb 2004 | $73.35 | $73.35 | $63.05 | $67.00 | -8.66% | 2,300 |
| Jan 2004 | $65.00 | $73.35 | $65.00 | $73.35 | +16.89% | 4,100 |
| Dec 2003 | $65.75 | $69.35 | $62.50 | $62.75 | -4.56% | 2,100 |
| Nov 2003 | $65.00 | $65.75 | $65.00 | $65.75 | +4.70% | 400 |
| Oct 2003 | $65.00 | $65.00 | $62.80 | $62.80 | -3.38% | 100 |
| Sep 2003 | $64.00 | $70.88 | $61.10 | $65.00 | +1.56% | 900 |
| Aug 2003 | $67.25 | $67.25 | $63.00 | $64.00 | -4.83% | 2,100 |
| Jul 2003 | $65.00 | $75.45 | $60.00 | $67.25 | +3.46% | 6,300 |
| Jun 2003 | $63.00 | $73.60 | $60.65 | $65.00 | +3.17% | 3,300 |
| May 2003 | $62.00 | $63.00 | $60.25 | $63.00 | +2.86% | 500 |
| Apr 2003 | $60.25 | $62.50 | $60.25 | $61.25 | +1.66% | 900 |
| Mar 2003 | $61.75 | $61.75 | $56.50 | $60.25 | -2.43% | 1,000 |
| Feb 2003 | $61.00 | $62.50 | $59.00 | $61.75 | +4.66% | 1,100 |
| Jan 2003 | $56.55 | $60.00 | $56.55 | $59.00 | +4.33% | 1,200 |
| Dec 2002 | $56.55 | $56.55 | $56.55 | $56.55 | 0.00% | 0 |
| Nov 2002 | $57.85 | $57.85 | $56.55 | $56.55 | -2.25% | 100 |
| Oct 2002 | $56.55 | $59.50 | $56.55 | $57.85 | +2.30% | 400 |
| Sep 2002 | $59.25 | $59.25 | $56.30 | $56.55 | -4.56% | 2,100 |
| Aug 2002 | $58.15 | $59.75 | $55.85 | $59.25 | +1.89% | 1,600 |
| Jul 2002 | $55.75 | $58.15 | $55.75 | $58.15 | +4.30% | 1,300 |
| Jun 2002 | $56.70 | $58.00 | $55.50 | $55.75 | -2.19% | 7,300 |
| May 2002 | $61.00 | $61.00 | $57.00 | $57.00 | -6.56% | 200 |
| Apr 2002 | $61.50 | $62.00 | $56.55 | $61.00 | -0.81% | 1,100 |
| Mar 2002 | $61.25 | $61.50 | $61.25 | $61.50 | +0.41% | 100 |
| Feb 2002 | $56.00 | $61.25 | $56.00 | $61.25 | +9.38% | 1,000 |
| Jan 2002 | $54.50 | $57.00 | $54.50 | $56.00 | +2.75% | 500 |
| Dec 2001 | $57.10 | $57.10 | $54.20 | $54.50 | -4.55% | 200 |
| Nov 2001 | $57.10 | $57.10 | $57.10 | $57.10 | 0.00% | 0 |
| Oct 2001 | $53.30 | $57.10 | $53.30 | $57.10 | +7.13% | 400 |
| Sep 2001 | $53.30 | $53.30 | $53.30 | $53.30 | 0.00% | 0 |
| Aug 2001 | $53.30 | $53.30 | $53.30 | $53.30 | 0.00% | 0 |
| Jul 2001 | $53.30 | $53.30 | $53.30 | $53.30 | 0.00% | 0 |
| Jun 2001 | $56.00 | $56.00 | $53.25 | $53.30 | -4.82% | 2,900 |
| May 2001 | $54.25 | $56.00 | $53.00 | $56.00 | +3.23% | 1,000 |
| Apr 2001 | $54.25 | $56.35 | $54.25 | $54.25 | 0.00% | 1,400 |
| Mar 2001 | $53.25 | $54.25 | $52.25 | $54.25 | +3.83% | 2,900 |
| Feb 2001 | $53.25 | $54.63 | $52.00 | $52.25 | -1.88% | 2,900 |
| Jan 2001 | $52.50 | $53.25 | $51.88 | $53.25 | +1.43% | 300 |
| Dec 2000 | $51.88 | $52.88 | $51.88 | $52.50 | +0.96% | 1,200 |
| Nov 2000 | $52.00 | $55.00 | $51.88 | $52.00 | -2.12% | 2,800 |
| Oct 2000 | $51.88 | $53.13 | $51.88 | $53.13 | +2.41% | 1,000 |
| Sep 2000 | $55.00 | $55.00 | $44.50 | $51.88 | -5.68% | 2,100 |
| Aug 2000 | $52.00 | $55.00 | $51.50 | $55.00 | +5.77% | 2,400 |
| Jul 2000 | $51.88 | $52.88 | $51.50 | $52.00 | +0.24% | 400 |
| Jun 2000 | $51.38 | $57.25 | $51.25 | $51.88 | +0.97% | 3,100 |
| May 2000 | $55.00 | $56.25 | $51.38 | $51.38 | -6.59% | 700 |
| Apr 2000 | $55.50 | $57.50 | $55.00 | $55.00 | -0.90% | 2,700 |
| Mar 2000 | $55.00 | $58.00 | $55.00 | $55.50 | +0.91% | 1,800 |
| Feb 2000 | $61.50 | $61.50 | $54.88 | $55.00 | -10.57% | 2,100 |
| Jan 2000 | $60.13 | $61.50 | $58.00 | $61.50 | +2.29% | 2,800 |
| Dec 1999 | $60.75 | $63.50 | $60.00 | $60.13 | -1.03% | 2,900 |
| Nov 1999 | $61.25 | $61.50 | $60.00 | $60.75 | -0.82% | 1,200 |
| Oct 1999 | $62.50 | $63.00 | $61.25 | $61.25 | -2.00% | 9,500 |
| Sep 1999 | $66.75 | $68.25 | $62.50 | $62.50 | -6.37% | 1,100 |
| Aug 1999 | $70.50 | $70.50 | $62.50 | $66.75 | -5.32% | 1,600 |
| Jul 1999 | $72.00 | $72.75 | $65.00 | $70.50 | -2.08% | 3,300 |
| Jun 1999 | $73.13 | $73.75 | $72.00 | $72.00 | -1.54% | 1,400 |
| May 1999 | $74.50 | $74.50 | $72.63 | $73.13 | -1.85% | 700 |
| Apr 1999 | $73.50 | $75.00 | $71.00 | $74.50 | +1.36% | 2,400 |
| Mar 1999 | $70.00 | $73.50 | $70.00 | $73.50 | – | 900 |
Seasonality
AILLP return in each calendar month over the last 10 years, including dividends. The current month runs to the latest close.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average | 0.4% | 0.6% | -0.8% | -0.3% | -0.6% | 0.2% | 0.4% | -0.1% | 0.8% | 0.3% | -1.3% | 0.8% |
| Months up | 8 of 10 | 5 of 10 | 1 of 10 | 5 of 10 | 5 of 10 | 5 of 10 | 7 of 10 | 4 of 10 | 4 of 10 | 7 of 10 | 3 of 9 | 4 of 9 |
| 2026 | -1.1% | 5.7% | 0.0% | -5.8% | 0.0% | 0.1% | 0.5% | -1.8% | -1.3% | -0.7% | ||
| 2025 | 0.9% | 0.8% | 0.0% | -0.7% | -2.4% | 4.1% | 1.1% | -1.1% | 1.7% | 3.6% | -0.7% | 1.5% |
| 2024 | 3.1% | -0.0% | -0.7% | -0.9% | 1.6% | -1.4% | 2.9% | 3.8% | 4.9% | -4.1% | -1.6% | -0.0% |
| 2023 | 1.4% | 0.7% | -2.0% | 1.4% | 0.3% | 1.0% | -3.4% | -4.4% | -1.9% | -7.5% | 0.0% | 6.6% |
| 2022 | 1.0% | -4.6% | 0.0% | -4.3% | -4.6% | -4.8% | -2.6% | 5.2% | 0.0% | 1.5% | -7.6% | 0.0% |
| 2021 | 0.9% | -2.5% | -1.3% | 2.3% | 0.1% | 0.0% | -0.3% | 1.8% | 0.0% | 3.3% | -4.0% | 1.6% |
| 2020 | 1.1% | -0.3% | -2.1% | 0.5% | 1.1% | 2.1% | 0.9% | -0.8% | 5.8% | 1.0% | -1.5% | 1.4% |
| 2019 | 1.1% | 1.4% | 0.0% | 1.6% | 0.3% | 0.0% | 1.1% | 1.1% | -1.6% | 1.1% | 2.5% | -0.6% |
| 2018 | 1.3% | -1.1% | 1.9% | -1.1% | -1.3% | 0.3% | 2.2% | -3.2% | 0.0% | 4.5% | 0.5% | -1.6% |
| 2017 | -6.0% | 5.6% | -3.7% | 3.9% | -0.8% | 0.0% | 1.6% | -1.0% | 0.8% | 0.5% | 0.5% | -1.3% |