OTC:AILLO | Historical Stock Price | Ameren Illinois Co

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
2010-04-05 to 2026-08-27
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$61.42$77.30$97.29$122.44$154.10$193.952010-04-052026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2025

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volume
2025-12-31$69.50$147.690
2025-12-30$69.50$147.690
2025-12-29$69.50$147.690
2025-12-26$69.50$147.690
2025-12-24$69.50$147.690
2025-12-23$69.50$147.69300
2025-12-22$71.00$150.880
2025-12-19$71.00$150.880
2025-12-18$71.00$150.880
2025-12-17$71.00$150.880
2025-12-16$71.00$150.880
2025-12-15$71.00$150.880
2025-12-12$71.00$150.880
2025-12-11$71.00$150.880
2025-12-10$71.00$150.880
2025-12-09$71.00$150.88200
2025-12-08$70.75$150.340
2025-12-05$70.75$150.340
2025-12-04$70.75$150.340
2025-12-03$70.75$150.34700
2025-12-02$71.50$151.94100
2025-12-01$70.00$148.750
2025-11-28$70.00$148.75100
2025-11-26$69.50$147.69300
2025-11-25$69.50$147.690
2025-11-24$69.50$147.69600
2025-11-21$69.50$147.690
2025-11-20$69.50$147.69700
2025-11-19$70.99$150.850
2025-11-18$70.99$150.850
2025-11-17$70.99$150.850
2025-11-14$70.99$150.850
2025-11-13$70.99$150.850
2025-11-12$70.99$150.850
2025-11-11$70.99$150.850
2025-11-10$70.99$150.850
2025-11-07$70.99$150.850
2025-11-06$70.99$150.850
2025-11-05$70.99$150.850
2025-11-04$70.99$150.850
2025-11-03$70.99$150.850
2025-10-31$70.99$150.850
2025-10-30$70.99$150.850
2025-10-29$70.99$150.85100
2025-10-28$69.30$147.260
2025-10-27$69.30$147.260
2025-10-24$69.30$147.260
2025-10-23$69.30$147.260
2025-10-22$69.30$147.260
2025-10-21$69.30$147.260
2025-10-20$69.30$147.26300
2025-10-17$69.65$148.010
2025-10-16$69.65$148.010
2025-10-15$69.65$148.010
2025-10-14$69.65$148.010
2025-10-13$69.65$148.010
2025-10-10$69.65$148.010
2025-10-09$69.65$145.750
2025-10-08$69.65$145.75200
2025-10-07$69.75$145.960
2025-10-06$69.75$145.960
2025-10-03$69.75$145.960
2025-10-02$69.75$145.960
2025-10-01$69.75$145.960
2025-09-30$69.75$145.960
2025-09-29$69.75$145.960
2025-09-26$69.75$145.960
2025-09-25$69.75$145.96100
2025-09-24$70.88$148.32100
2025-09-23$69.75$145.960
2025-09-22$69.75$145.960
2025-09-19$69.75$145.960
2025-09-18$69.75$145.96100
2025-09-17$70.00$146.48300
2025-09-16$70.00$146.48300
2025-09-15$67.75$141.770
2025-09-12$67.75$141.770
2025-09-11$67.75$141.770
2025-09-10$67.75$141.770
2025-09-09$67.75$141.770
2025-09-08$67.75$141.770
2025-09-05$67.75$141.770
2025-09-04$67.75$141.770
2025-09-03$67.75$141.770
2025-09-02$67.75$141.770
2025-08-29$67.75$141.770
2025-08-28$67.75$141.77600
2025-08-27$68.00$142.300
2025-08-26$68.00$142.300
2025-08-25$68.00$142.300
2025-08-22$68.00$142.300
2025-08-21$68.00$142.300
2025-08-20$68.00$142.301,000
2025-08-19$68.00$142.300
2025-08-18$68.00$142.300
2025-08-15$68.00$142.300
2025-08-14$68.00$142.300
2025-08-13$68.00$142.300
2025-08-12$68.00$142.300
2025-08-11$68.00$142.300
2025-08-08$68.00$142.300
2025-08-07$68.00$142.300
2025-08-06$68.00$142.300
2025-08-05$68.00$142.300
2025-08-04$68.00$142.300
2025-08-01$68.00$142.300
2025-07-31$68.00$142.300
2025-07-30$68.00$142.30100
2025-07-29$68.00$142.30500
2025-07-28$67.75$141.77300
2025-07-25$68.00$142.30600
2025-07-24$68.27$142.860
2025-07-23$68.27$142.86200
2025-07-22$66.91$140.010
2025-07-21$66.91$140.010
2025-07-18$66.91$140.010
2025-07-17$66.91$140.010
2025-07-16$66.91$140.010
2025-07-15$66.91$140.010
2025-07-14$66.91$140.01500
2025-07-11$68.00$142.300
2025-07-10$68.00$140.070
2025-07-09$68.00$140.070
2025-07-08$68.00$140.070
2025-07-07$68.00$140.07200
2025-07-03$67.90$139.870
2025-07-02$67.90$139.870
2025-07-01$67.90$139.870
2025-06-30$67.90$139.87200
2025-06-27$66.75$137.500
2025-06-26$66.75$137.50100
2025-06-25$66.00$135.950
2025-06-24$66.00$135.950
2025-06-23$66.00$135.950
2025-06-20$66.00$135.950
2025-06-18$66.00$135.950
2025-06-17$66.00$135.95300
2025-06-16$66.75$137.500
2025-06-13$66.75$137.500
2025-06-12$66.75$137.500
2025-06-11$66.75$137.50200
2025-06-10$66.90$137.810
2025-06-09$66.90$137.810
2025-06-06$66.90$137.810
2025-06-05$66.90$137.810
2025-06-04$66.90$137.81100
2025-06-03$66.81$137.620
2025-06-02$66.81$137.620
2025-05-30$66.81$137.620
2025-05-29$66.81$137.620
2025-05-28$66.81$137.62500
2025-05-27$68.35$140.790
2025-05-23$68.35$140.790
2025-05-22$68.35$140.790
2025-05-21$68.35$140.790
2025-05-20$68.35$140.790
2025-05-19$68.35$140.790
2025-05-16$68.35$140.790
2025-05-15$68.35$140.790
2025-05-14$68.35$140.790
2025-05-13$68.35$140.790
2025-05-12$68.35$140.790
2025-05-09$68.35$140.790
2025-05-08$68.35$140.790
2025-05-07$68.35$140.790
2025-05-06$68.35$140.790
2025-05-05$68.35$140.790
2025-05-02$68.35$140.790
2025-05-01$68.35$140.790
2025-04-30$68.35$140.790
2025-04-29$68.35$140.790
2025-04-28$68.35$140.790
2025-04-25$68.35$140.790
2025-04-24$68.35$140.790
2025-04-23$68.35$140.790
2025-04-22$68.35$140.790
2025-04-21$68.35$140.790
2025-04-17$68.35$140.790
2025-04-16$68.35$140.790
2025-04-15$68.35$140.790
2025-04-14$68.35$140.790
2025-04-11$68.35$140.79100
2025-04-10$70.00$142.000
2025-04-09$70.00$142.000
2025-04-08$70.00$142.000
2025-04-07$70.00$142.000
2025-04-04$70.00$142.000
2025-04-03$70.00$142.000
2025-04-02$70.00$142.000
2025-04-01$70.00$142.000
2025-03-31$70.00$142.000
2025-03-28$70.00$142.00200
2025-03-27$72.00$146.060
2025-03-26$72.00$146.060
2025-03-25$72.00$146.060
2025-03-24$72.00$146.060
2025-03-21$72.00$146.060
2025-03-20$72.00$146.060
2025-03-19$72.00$146.060
2025-03-18$72.00$146.060
2025-03-17$72.00$146.060
2025-03-14$72.00$146.06200
2025-03-13$70.00$142.000
2025-03-12$70.00$142.000
2025-03-11$70.00$142.000
2025-03-10$70.00$142.000
2025-03-07$70.00$142.000
2025-03-06$70.00$142.000
2025-03-05$70.00$142.000
2025-03-04$70.00$142.000
2025-03-03$70.00$142.000
2025-02-28$70.00$142.000
2025-02-27$70.00$142.000
2025-02-26$70.00$142.000
2025-02-25$70.00$142.000
2025-02-24$70.00$142.000
2025-02-21$70.00$142.000
2025-02-20$70.00$142.000
2025-02-19$70.00$142.000
2025-02-18$70.00$142.000
2025-02-14$70.00$142.000
2025-02-13$70.00$142.000
2025-02-12$70.00$142.000
2025-02-11$70.00$142.000
2025-02-10$70.00$142.000
2025-02-07$70.00$142.000
2025-02-06$70.00$142.000
2025-02-05$70.00$142.000
2025-02-04$70.00$142.000
2025-02-03$70.00$142.00200
2025-01-31$69.73$141.450
2025-01-30$69.73$141.450
2025-01-29$69.73$141.450
2025-01-28$69.73$141.450
2025-01-27$69.73$141.45100
2025-01-24$70.00$142.000
2025-01-23$70.00$142.000
2025-01-22$70.00$142.000
2025-01-21$70.00$142.000
2025-01-17$70.00$142.000
2025-01-16$70.00$142.000
2025-01-15$70.00$142.00300
2025-01-14$69.10$140.180
2025-01-13$69.10$140.180
2025-01-10$69.10$138.02200
2025-01-08$69.00$137.820
2025-01-07$69.00$137.820
2025-01-06$69.00$137.820
2025-01-03$69.00$137.820
2025-01-02$69.00$137.820