Ameren Illinois Co (AILLN) stock
AILLNOTCElectric & Other Services CombinedFiscal year ends December 31Also trades as AILIH, AILIM, AILIN, AILIO, AILIP, AILLI, AILLM, AILLO, AILLP
Last filing: 10-Q on Aug 3, 2026
$75.00+0.00 (0.00%)
Close on Oct 19, 2026Market cap –P/E –Yield –
Price history
Ameren Illinois share prices for every trading day, newest first. Adjusted for stock splits, not for dividends.
Close, Oct 19, 2026
$75.00
0.00% on the day
52-week range
$75.00 – $81.21
-7.6% from the high
Change over 52 weeks
-4.8%
From $78.77 on Oct 17, 2025
Average volume
83
Shares a day, last 90 sessions
| Date | Open | High | Low | Close | Change | Volume |
|---|---|---|---|---|---|---|
| Oct 19, 2026 | $75.00 | $75.00 | $75.00 | $75.00 | 0.00% | 0 |
| Oct 16, 2026 | $75.00 | $75.00 | $75.00 | $75.00 | -1.95% | 105 |
| Oct 15, 2026 | $76.49 | $76.49 | $76.49 | $76.49 | 0.00% | 0 |
| Oct 14, 2026 | $76.49 | $76.49 | $76.49 | $76.49 | 0.00% | 0 |
| Oct 13, 2026 | $76.49 | $76.49 | $76.49 | $76.49 | 0.00% | 0 |
| Oct 12, 2026 | $76.49 | $76.49 | $76.49 | $76.49 | 0.00% | 0 |
| Oct 9, 2026 | $76.49 | $76.49 | $76.49 | $76.49 | 0.00% | 0 |
| Oct 8, 2026 | $76.49 | $76.49 | $76.49 | $76.49 | -0.73% | 100 |
| Oct 7, 2026 | $77.05 | $77.05 | $77.05 | $77.05 | 0.00% | 0 |
| Oct 6, 2026 | $77.05 | $77.05 | $77.05 | $77.05 | 0.00% | 0 |
| Oct 5, 2026 | $77.05 | $77.05 | $77.05 | $77.05 | 0.00% | 0 |
| Oct 2, 2026 | $77.05 | $77.05 | $77.05 | $77.05 | 0.00% | 0 |
| Oct 1, 2026 | $77.05 | $77.05 | $77.05 | $77.05 | 0.00% | 0 |
| Sep 30, 2026 | $77.05 | $77.05 | $77.05 | $77.05 | 0.00% | 0 |
| Sep 29, 2026 | $77.05 | $77.05 | $77.05 | $77.05 | 0.00% | 0 |
| Sep 28, 2026 | $77.05 | $77.05 | $77.05 | $77.05 | 0.00% | 250 |
| Sep 25, 2026 | $77.05 | $77.05 | $77.05 | $77.05 | 0.00% | 0 |
| Sep 24, 2026 | $77.05 | $77.05 | $77.05 | $77.05 | 0.00% | 0 |
| Sep 23, 2026 | $77.07 | $77.07 | $77.05 | $77.05 | -0.03% | 700 |
| Sep 22, 2026 | $77.07 | $77.07 | $77.07 | $77.07 | 0.00% | 0 |
| Sep 21, 2026 | $77.07 | $77.07 | $77.07 | $77.07 | 0.00% | 0 |
| Sep 18, 2026 | $77.07 | $77.07 | $77.07 | $77.07 | 0.00% | 0 |
| Sep 17, 2026 | $77.07 | $77.07 | $77.07 | $77.07 | 0.00% | 0 |
| Sep 16, 2026 | $77.07 | $77.07 | $77.07 | $77.07 | 0.00% | 0 |
| Sep 15, 2026 | $77.07 | $77.07 | $77.07 | $77.07 | 0.00% | 0 |
| Sep 14, 2026 | $77.07 | $77.07 | $77.07 | $77.07 | 0.00% | 0 |
| Sep 11, 2026 | $77.07 | $77.07 | $77.07 | $77.07 | 0.00% | 0 |
| Sep 10, 2026 | $77.07 | $77.07 | $77.07 | $77.07 | 0.00% | 0 |
| Sep 9, 2026 | $77.07 | $77.07 | $77.07 | $77.07 | 0.00% | 0 |
| Sep 8, 2026 | $77.07 | $77.07 | $77.07 | $77.07 | 0.00% | 0 |
| Sep 4, 2026 | $77.07 | $77.07 | $77.07 | $77.07 | +0.04% | 100 |
| Sep 3, 2026 | $77.04 | $77.04 | $77.04 | $77.04 | 0.00% | 0 |
| Sep 2, 2026 | $77.04 | $77.04 | $77.04 | $77.04 | 0.00% | 0 |
| Sep 1, 2026 | $77.04 | $77.04 | $77.04 | $77.04 | 0.00% | 0 |
| Aug 31, 2026 | $77.04 | $77.04 | $77.04 | $77.04 | 0.00% | 0 |
| Aug 28, 2026 | $77.04 | $77.04 | $77.04 | $77.04 | 0.00% | 0 |
| Aug 27, 2026 | $77.04 | $77.04 | $77.04 | $77.04 | 0.00% | 0 |
| Aug 26, 2026 | $77.04 | $77.04 | $77.04 | $77.04 | -0.80% | 100 |
| Aug 25, 2026 | $77.66 | $77.66 | $77.66 | $77.66 | 0.00% | 0 |
| Aug 24, 2026 | $77.66 | $77.66 | $77.66 | $77.66 | 0.00% | 0 |
| Aug 21, 2026 | $77.66 | $77.66 | $77.66 | $77.66 | 0.00% | 0 |
| Aug 20, 2026 | $77.66 | $77.66 | $77.66 | $77.66 | 0.00% | 0 |
| Aug 19, 2026 | $77.66 | $77.66 | $77.66 | $77.66 | 0.00% | 0 |
| Aug 18, 2026 | $77.66 | $77.66 | $77.66 | $77.66 | 0.00% | 0 |
| Aug 17, 2026 | $77.66 | $77.66 | $77.66 | $77.66 | 0.00% | 0 |
| Aug 14, 2026 | $77.66 | $77.66 | $77.66 | $77.66 | 0.00% | 0 |
| Aug 13, 2026 | $77.66 | $77.66 | $77.66 | $77.66 | 0.00% | 0 |
| Aug 12, 2026 | $77.66 | $77.66 | $77.66 | $77.66 | 0.00% | 0 |
| Aug 11, 2026 | $77.66 | $77.66 | $77.66 | $77.66 | -0.17% | 200 |
| Aug 10, 2026 | $77.81 | $77.81 | $77.79 | $77.79 | -0.29% | 251 |
| Aug 7, 2026 | $78.02 | $78.02 | $78.02 | $78.02 | 0.00% | 0 |
| Aug 6, 2026 | $78.02 | $78.02 | $78.02 | $78.02 | 0.00% | 0 |
| Aug 5, 2026 | $78.02 | $78.02 | $78.02 | $78.02 | +0.08% | 240 |
| Aug 4, 2026 | $77.96 | $77.96 | $77.96 | $77.96 | 0.00% | 0 |
| Aug 3, 2026 | $77.96 | $77.96 | $77.96 | $77.96 | 0.00% | 0 |
| Jul 31, 2026 | $77.96 | $77.96 | $77.96 | $77.96 | 0.00% | 0 |
| Jul 30, 2026 | $77.96 | $77.96 | $77.96 | $77.96 | 0.00% | 0 |
| Jul 29, 2026 | $77.96 | $77.96 | $77.96 | $77.96 | 0.00% | 0 |
| Jul 28, 2026 | $77.96 | $77.96 | $77.96 | $77.96 | 0.00% | 0 |
| Jul 27, 2026 | $77.96 | $77.96 | $77.96 | $77.96 | 0.00% | 0 |
| Jul 24, 2026 | $77.88 | $77.96 | $77.86 | $77.96 | -0.11% | 450 |
| Jul 23, 2026 | $78.04 | $78.04 | $78.04 | $78.04 | 0.00% | 0 |
| Jul 22, 2026 | $78.04 | $78.04 | $78.04 | $78.04 | 0.00% | 0 |
| Jul 21, 2026 | $78.04 | $78.04 | $78.04 | $78.04 | 0.00% | 0 |
| Jul 20, 2026 | $78.04 | $78.04 | $78.04 | $78.04 | 0.00% | 0 |
| Jul 17, 2026 | $78.04 | $78.04 | $78.04 | $78.04 | 0.00% | 0 |
| Jul 16, 2026 | $78.30 | $78.30 | $78.04 | $78.04 | -0.26% | 352 |
| Jul 15, 2026 | $78.25 | $78.25 | $78.25 | $78.25 | 0.00% | 0 |
| Jul 14, 2026 | $78.25 | $78.25 | $78.25 | $78.25 | 0.00% | 0 |
| Jul 13, 2026 | $78.25 | $78.25 | $78.25 | $78.25 | 0.00% | 0 |
| Jul 10, 2026 | $77.95 | $78.25 | $77.95 | $78.25 | -0.24% | 630 |
| Jul 9, 2026 | $78.44 | $78.44 | $78.44 | $78.44 | +0.22% | 100 |
| Jul 8, 2026 | $78.09 | $78.27 | $78.09 | $78.27 | +0.02% | 778 |
| Jul 7, 2026 | $78.30 | $78.30 | $78.18 | $78.25 | -0.24% | 1,197 |
| Jul 6, 2026 | $78.99 | $78.99 | $78.44 | $78.44 | 0.00% | 725 |
| Jul 2, 2026 | $78.44 | $78.44 | $78.44 | $78.44 | 0.00% | 0 |
| Jul 1, 2026 | $78.44 | $78.44 | $78.44 | $78.44 | 0.00% | 0 |
| Jun 30, 2026 | $78.44 | $78.44 | $78.44 | $78.44 | 0.00% | 0 |
| Jun 29, 2026 | $78.44 | $78.44 | $78.44 | $78.44 | 0.00% | 0 |
| Jun 26, 2026 | $78.44 | $78.44 | $78.44 | $78.44 | 0.00% | 0 |
| Jun 25, 2026 | $78.44 | $78.44 | $78.44 | $78.44 | 0.00% | 0 |
| Jun 24, 2026 | $78.44 | $78.44 | $78.44 | $78.44 | 0.00% | 0 |
| Jun 23, 2026 | $78.44 | $78.44 | $78.44 | $78.44 | 0.00% | 0 |
| Jun 22, 2026 | $78.44 | $78.44 | $78.44 | $78.44 | 0.00% | 225 |
| Jun 18, 2026 | $78.44 | $78.44 | $78.44 | $78.44 | 0.00% | 0 |
| Jun 17, 2026 | $78.44 | $78.44 | $78.44 | $78.44 | 0.00% | 0 |
| Jun 16, 2026 | $78.44 | $78.44 | $78.44 | $78.44 | 0.00% | 0 |
| Jun 15, 2026 | $79.75 | $79.75 | $78.44 | $78.44 | -0.01% | 770 |
| Jun 12, 2026 | $78.45 | $78.45 | $78.45 | $78.45 | 0.00% | 0 |
| Jun 11, 2026 | $79.65 | $79.65 | $78.45 | $78.45 | 0.00% | 220 |
| Jun 10, 2026 | $78.45 | $78.45 | $78.45 | $78.45 | 0.00% | 0 |
| Jun 9, 2026 | $78.45 | $78.45 | $78.45 | $78.45 | 0.00% | 0 |
| Jun 8, 2026 | $78.45 | $78.45 | $78.45 | $78.45 | 0.00% | 0 |
| Jun 5, 2026 | $78.45 | $78.45 | $78.45 | $78.45 | 0.00% | 0 |
| Jun 4, 2026 | $78.45 | $78.45 | $78.45 | $78.45 | 0.00% | 0 |
| Jun 3, 2026 | $78.45 | $78.45 | $78.45 | $78.45 | 0.00% | 0 |
| Jun 2, 2026 | $78.45 | $78.45 | $78.45 | $78.45 | 0.00% | 0 |
| Jun 1, 2026 | $78.45 | $78.45 | $78.45 | $78.45 | 0.00% | 0 |
| May 29, 2026 | $78.45 | $79.65 | $78.45 | $78.45 | +0.26% | 300 |
| May 28, 2026 | $78.45 | $78.45 | $78.25 | $78.25 | -0.55% | 1,350 |
| May 27, 2026 | $79.25 | $79.25 | $78.68 | $78.68 | +0.23% | 344 |
| May 26, 2026 | $79.01 | $79.01 | $78.50 | $78.50 | -0.63% | 454 |
| May 22, 2026 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| May 21, 2026 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| May 20, 2026 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| May 19, 2026 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| May 18, 2026 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| May 15, 2026 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| May 14, 2026 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| May 13, 2026 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| May 12, 2026 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| May 11, 2026 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| May 8, 2026 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| May 7, 2026 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| May 6, 2026 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 192 |
| May 5, 2026 | $79.00 | $79.00 | $79.00 | $79.00 | -0.13% | 705 |
| May 4, 2026 | $79.10 | $79.10 | $79.10 | $79.10 | 0.00% | 0 |
| May 1, 2026 | $79.10 | $79.10 | $79.10 | $79.10 | 0.00% | 0 |
| Apr 30, 2026 | $79.10 | $79.10 | $79.10 | $79.10 | 0.00% | 0 |
| Apr 29, 2026 | $79.10 | $79.10 | $79.10 | $79.10 | 0.00% | 0 |
| Apr 28, 2026 | $79.10 | $79.10 | $79.10 | $79.10 | 0.00% | 0 |
| Apr 27, 2026 | $79.10 | $79.10 | $79.10 | $79.10 | +0.13% | 501 |
| Apr 24, 2026 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| Apr 23, 2026 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| Apr 22, 2026 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 100 |
| Apr 21, 2026 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| Apr 20, 2026 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| Apr 17, 2026 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| Apr 16, 2026 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| Apr 15, 2026 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| Apr 14, 2026 | $79.00 | $79.00 | $79.00 | $79.00 | -0.75% | 290 |
| Apr 13, 2026 | $79.60 | $79.60 | $79.60 | $79.60 | 0.00% | 0 |
| Apr 10, 2026 | $79.60 | $79.60 | $79.60 | $79.60 | 0.00% | 0 |
| Apr 9, 2026 | $79.60 | $79.60 | $79.60 | $79.60 | 0.00% | 0 |
| Apr 8, 2026 | $79.60 | $79.60 | $79.60 | $79.60 | 0.00% | 0 |
| Apr 7, 2026 | $79.60 | $79.60 | $79.60 | $79.60 | 0.00% | 0 |
| Apr 6, 2026 | $79.60 | $79.60 | $79.60 | $79.60 | 0.00% | 0 |
| Apr 2, 2026 | $79.60 | $79.60 | $79.60 | $79.60 | 0.00% | 0 |
| Apr 1, 2026 | $79.60 | $79.60 | $79.60 | $79.60 | 0.00% | 0 |
| Mar 31, 2026 | $79.60 | $79.60 | $79.60 | $79.60 | 0.00% | 0 |
| Mar 30, 2026 | $79.60 | $79.60 | $79.60 | $79.60 | +0.05% | 205 |
| Mar 27, 2026 | $80.10 | $80.10 | $79.56 | $79.56 | -0.55% | 310 |
| Mar 26, 2026 | $80.00 | $80.00 | $80.00 | $80.00 | 0.00% | 0 |
| Mar 25, 2026 | $80.00 | $80.00 | $80.00 | $80.00 | 0.00% | 0 |
| Mar 24, 2026 | $80.00 | $80.00 | $80.00 | $80.00 | 0.00% | 0 |
| Mar 23, 2026 | $80.00 | $80.00 | $80.00 | $80.00 | 0.00% | 0 |
| Mar 20, 2026 | $80.00 | $80.00 | $80.00 | $80.00 | 0.00% | 0 |
| Mar 19, 2026 | $80.00 | $80.00 | $80.00 | $80.00 | +0.50% | 400 |
| Mar 18, 2026 | $79.60 | $79.60 | $79.60 | $79.60 | 0.00% | 0 |
| Mar 17, 2026 | $79.60 | $79.60 | $79.60 | $79.60 | 0.00% | 0 |
| Mar 16, 2026 | $79.60 | $79.60 | $79.60 | $79.60 | 0.00% | 0 |
| Mar 13, 2026 | $79.60 | $79.60 | $79.60 | $79.60 | 0.00% | 0 |
| Mar 12, 2026 | $79.60 | $79.60 | $79.60 | $79.60 | 0.00% | 0 |
| Mar 11, 2026 | $79.60 | $79.60 | $79.60 | $79.60 | 0.00% | 0 |
| Mar 10, 2026 | $79.60 | $79.60 | $79.60 | $79.60 | 0.00% | 0 |
| Mar 9, 2026 | $79.60 | $79.60 | $79.60 | $79.60 | 0.00% | 0 |
| Mar 6, 2026 | $79.60 | $79.60 | $79.60 | $79.60 | 0.00% | 0 |
| Mar 5, 2026 | $79.60 | $79.60 | $79.60 | $79.60 | 0.00% | 0 |
| Mar 4, 2026 | $79.60 | $79.60 | $79.60 | $79.60 | 0.00% | 0 |
| Mar 3, 2026 | $79.60 | $79.60 | $79.60 | $79.60 | 0.00% | 0 |
| Mar 2, 2026 | $79.60 | $79.60 | $79.60 | $79.60 | 0.00% | 0 |
| Feb 27, 2026 | $79.60 | $79.60 | $79.60 | $79.60 | 0.00% | 0 |
| Feb 26, 2026 | $79.60 | $79.60 | $79.60 | $79.60 | 0.00% | 0 |
| Feb 25, 2026 | $79.60 | $79.60 | $79.60 | $79.60 | +0.21% | 310 |
| Feb 24, 2026 | $79.43 | $79.43 | $79.43 | $79.43 | 0.00% | 0 |
| Feb 23, 2026 | $79.43 | $79.43 | $79.43 | $79.43 | 0.00% | 0 |
| Feb 20, 2026 | $79.25 | $79.43 | $79.25 | $79.43 | +0.27% | 300 |
| Feb 19, 2026 | $79.22 | $79.22 | $79.22 | $79.22 | 0.00% | 0 |
| Feb 18, 2026 | $79.22 | $79.22 | $79.22 | $79.22 | 0.00% | 0 |
| Feb 17, 2026 | $79.22 | $79.22 | $79.22 | $79.22 | 0.00% | 0 |
| Feb 13, 2026 | $79.22 | $79.22 | $79.22 | $79.22 | 0.00% | 0 |
| Feb 12, 2026 | $79.22 | $79.22 | $79.22 | $79.22 | 0.00% | 0 |
| Feb 11, 2026 | $79.22 | $79.22 | $79.22 | $79.22 | 0.00% | 0 |
| Feb 10, 2026 | $79.22 | $79.22 | $79.22 | $79.22 | 0.00% | 0 |
| Feb 9, 2026 | $79.22 | $79.22 | $79.22 | $79.22 | 0.00% | 0 |
| Feb 6, 2026 | $79.22 | $79.22 | $79.22 | $79.22 | +0.47% | 100 |
| Feb 5, 2026 | $78.85 | $78.85 | $78.85 | $78.85 | 0.00% | 0 |
| Feb 4, 2026 | $78.85 | $78.85 | $78.85 | $78.85 | 0.00% | 0 |
| Feb 3, 2026 | $78.85 | $78.85 | $78.85 | $78.85 | 0.00% | 0 |
| Feb 2, 2026 | $78.85 | $78.85 | $78.85 | $78.85 | 0.00% | 0 |
| Jan 30, 2026 | $78.85 | $78.85 | $78.85 | $78.85 | 0.00% | 0 |
| Jan 29, 2026 | $78.85 | $78.85 | $78.85 | $78.85 | +0.13% | 100 |
| Jan 28, 2026 | $78.75 | $78.75 | $78.75 | $78.75 | 0.00% | 0 |
| Jan 27, 2026 | $78.75 | $78.75 | $78.75 | $78.75 | 0.00% | 0 |
| Jan 26, 2026 | $78.75 | $78.75 | $78.75 | $78.75 | -1.56% | 185 |
| Jan 23, 2026 | $80.00 | $80.00 | $80.00 | $80.00 | 0.00% | 0 |
| Jan 22, 2026 | $80.00 | $80.00 | $80.00 | $80.00 | 0.00% | 0 |
| Jan 21, 2026 | $80.00 | $80.00 | $80.00 | $80.00 | 0.00% | 0 |
| Jan 20, 2026 | $80.00 | $80.00 | $80.00 | $80.00 | 0.00% | 0 |
| Jan 16, 2026 | $80.00 | $80.00 | $80.00 | $80.00 | 0.00% | 0 |
| Jan 15, 2026 | $80.00 | $80.00 | $80.00 | $80.00 | 0.00% | 0 |
| Jan 14, 2026 | $80.00 | $80.00 | $80.00 | $80.00 | 0.00% | 0 |
| Jan 13, 2026 | $80.00 | $80.00 | $80.00 | $80.00 | 0.00% | 0 |
| Jan 12, 2026 | $80.00 | $80.00 | $80.00 | $80.00 | 0.00% | 0 |
| Jan 9, 2026 | $80.00 | $80.00 | $80.00 | $80.00 | 0.00% | 0 |
| Jan 8, 2026 | $80.00 | $80.00 | $80.00 | $80.00 | +1.39% | 100 |
| Jan 7, 2026 | $78.90 | $78.90 | $78.90 | $78.90 | 0.00% | 0 |
| Jan 6, 2026 | $78.90 | $78.90 | $78.90 | $78.90 | 0.00% | 0 |
| Jan 5, 2026 | $78.90 | $78.90 | $78.90 | $78.90 | +0.06% | 100 |
| Jan 2, 2026 | $78.85 | $78.85 | $78.85 | $78.85 | 0.00% | 0 |
| Dec 31, 2025 | $78.85 | $78.85 | $78.85 | $78.85 | 0.00% | 0 |
| Dec 30, 2025 | $78.85 | $78.85 | $78.85 | $78.85 | 0.00% | 0 |
| Dec 29, 2025 | $78.85 | $78.85 | $78.85 | $78.85 | 0.00% | 0 |
| Dec 26, 2025 | $78.85 | $78.85 | $78.85 | $78.85 | 0.00% | 0 |
| Dec 24, 2025 | $78.85 | $78.85 | $78.85 | $78.85 | 0.00% | 0 |
| Dec 23, 2025 | $78.85 | $78.85 | $78.85 | $78.85 | 0.00% | 0 |
| Dec 22, 2025 | $78.85 | $78.85 | $78.85 | $78.85 | -2.91% | 132 |
| Dec 19, 2025 | $81.21 | $81.21 | $81.21 | $81.21 | 0.00% | 0 |
| Dec 18, 2025 | $81.21 | $81.21 | $81.21 | $81.21 | 0.00% | 0 |
| Dec 17, 2025 | $81.21 | $81.21 | $81.21 | $81.21 | 0.00% | 0 |
| Dec 16, 2025 | $81.21 | $81.21 | $81.21 | $81.21 | 0.00% | 0 |
| Dec 15, 2025 | $81.21 | $81.21 | $81.21 | $81.21 | 0.00% | 0 |
| Dec 12, 2025 | $81.21 | $81.21 | $81.21 | $81.21 | 0.00% | 0 |
| Dec 11, 2025 | $81.21 | $81.21 | $81.21 | $81.21 | 0.00% | 0 |
| Dec 10, 2025 | $81.21 | $81.21 | $81.21 | $81.21 | 0.00% | 0 |
| Dec 9, 2025 | $81.21 | $81.21 | $81.21 | $81.21 | 0.00% | 0 |
| Dec 8, 2025 | $81.21 | $81.21 | $81.21 | $81.21 | 0.00% | 0 |
| Dec 5, 2025 | $81.21 | $81.21 | $81.21 | $81.21 | 0.00% | 0 |
| Dec 4, 2025 | $81.21 | $81.21 | $81.21 | $81.21 | 0.00% | 0 |
| Dec 3, 2025 | $81.21 | $81.21 | $81.21 | $81.21 | 0.00% | 0 |
| Dec 2, 2025 | $81.21 | $81.21 | $81.21 | $81.21 | +2.47% | 160 |
| Dec 1, 2025 | $79.25 | $79.25 | $79.25 | $79.25 | +0.32% | 100 |
| Nov 28, 2025 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| Nov 26, 2025 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| Nov 25, 2025 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| Nov 24, 2025 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| Nov 21, 2025 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| Nov 20, 2025 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| Nov 19, 2025 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| Nov 18, 2025 | $79.00 | $79.00 | $79.00 | $79.00 | -2.47% | 100 |
| Nov 17, 2025 | $81.00 | $81.00 | $81.00 | $81.00 | 0.00% | 0 |
| Nov 14, 2025 | $81.00 | $81.00 | $81.00 | $81.00 | +0.01% | 200 |
| Nov 13, 2025 | $80.99 | $80.99 | $80.99 | $80.99 | 0.00% | 0 |
| Nov 12, 2025 | $80.99 | $80.99 | $80.99 | $80.99 | 0.00% | 0 |
| Nov 11, 2025 | $80.99 | $80.99 | $80.99 | $80.99 | 0.00% | 0 |
| Nov 10, 2025 | $80.99 | $80.99 | $80.99 | $80.99 | 0.00% | 0 |
| Nov 7, 2025 | $80.99 | $80.99 | $80.99 | $80.99 | 0.00% | 0 |
| Nov 6, 2025 | $80.98 | $80.99 | $80.98 | $80.99 | +2.52% | 200 |
| Nov 5, 2025 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| Nov 4, 2025 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| Nov 3, 2025 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| Oct 31, 2025 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| Oct 30, 2025 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| Oct 29, 2025 | $79.00 | $79.00 | $79.00 | $79.00 | 0.00% | 0 |
| Oct 28, 2025 | $79.00 | $79.00 | $79.00 | $79.00 | +0.57% | 300 |
| Oct 27, 2025 | $78.55 | $78.55 | $78.55 | $78.55 | 0.00% | 0 |
| Oct 24, 2025 | $78.55 | $78.55 | $78.55 | $78.55 | -0.88% | 100 |
| Oct 23, 2025 | $79.25 | $79.25 | $79.25 | $79.25 | 0.00% | 0 |
| Oct 22, 2025 | $79.25 | $79.25 | $79.25 | $79.25 | 0.00% | 0 |
| Oct 21, 2025 | $79.25 | $79.25 | $79.25 | $79.25 | +0.61% | 163 |
| Oct 20, 2025 | $78.77 | $78.77 | $78.77 | $78.77 | 0.00% | 0 |
| Oct 17, 2025 | $78.77 | $78.77 | $78.77 | $78.77 | 0.00% | 0 |
| Oct 16, 2025 | $78.77 | $78.77 | $78.77 | $78.77 | 0.00% | 0 |
| Oct 15, 2025 | $78.77 | $78.77 | $78.77 | $78.77 | 0.00% | 0 |
| Oct 14, 2025 | $78.77 | $78.77 | $78.77 | $78.77 | -3.35% | 469 |
| Oct 13, 2025 | $81.50 | $81.50 | $81.50 | $81.50 | 0.00% | 0 |
| Oct 10, 2025 | $81.50 | $81.50 | $81.50 | $81.50 | +0.62% | 220 |
| Oct 9, 2025 | $81.00 | $81.00 | $81.00 | $81.00 | 0.00% | 0 |
| Oct 8, 2025 | $80.50 | $82.00 | $79.97 | $81.00 | +2.70% | 1,161 |
| Oct 7, 2025 | $78.87 | $78.87 | $78.87 | $78.87 | – | 0 |
Seasonality
AILLN 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 | 1.8% | 0.1% | -0.8% | 0.8% | 2.2% | -1.7% | 1.6% | -0.8% | 0.9% | 0.1% | 0.1% | -1.2% |
| Months up | 9 of 10 | 4 of 10 | 2 of 10 | 7 of 10 | 3 of 10 | 3 of 10 | 8 of 10 | 4 of 10 | 7 of 10 | 6 of 10 | 1 of 9 | 3 of 9 |
| 2026 | 1.6% | 1.0% | 0.0% | 0.9% | -0.8% | -0.0% | 1.0% | -1.2% | 0.0% | -1.1% | ||
| 2025 | 4.9% | 0.9% | -0.3% | -1.0% | -1.7% | -0.2% | 3.9% | 0.8% | -0.1% | 1.7% | 0.0% | -0.2% |
| 2024 | 0.6% | 3.4% | -2.7% | -0.1% | -0.6% | 1.3% | 5.7% | -2.4% | 2.8% | 1.1% | -0.1% | -6.0% |
| 2023 | -0.8% | -3.3% | 2.2% | 1.4% | -3.7% | 1.0% | 1.4% | -7.9% | -0.8% | -4.5% | -0.7% | 5.7% |
| 2022 | 1.2% | -1.8% | -1.3% | 0.2% | -3.3% | 6.0% | -0.3% | 0.0% | 0.0% | 1.2% | 0.0% | -6.0% |
| 2021 | 1.2% | 0.0% | -1.7% | 1.8% | 29.0% | -21.4% | -0.9% | 1.0% | 0.0% | 3.6% | 0.0% | -2.5% |
| 2020 | 2.7% | 0.0% | -5.0% | 2.5% | 1.8% | -0.9% | 1.2% | 0.0% | 2.1% | 1.2% | 0.0% | 0.2% |
| 2019 | 1.2% | 0.0% | 0.4% | 1.2% | 0.0% | -0.5% | 1.2% | 0.0% | 3.4% | -2.7% | 2.5% | 0.0% |
| 2018 | 4.3% | 0.7% | -0.2% | -0.0% | 1.7% | -1.3% | 2.0% | 0.5% | 0.5% | 1.2% | -1.1% | 0.1% |
| 2017 | 1.2% | 0.0% | 0.0% | 1.2% | 0.0% | -0.5% | 0.2% | 1.5% | 1.0% | -0.3% | 0.0% | -1.9% |