OTC:AILLN | 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
2009-02-09 to 2026-08-28
Data captured

Stock Price Chart

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

$67.45$88.75$116.77$153.64$202.16$266.002009-02-092026-08-28

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

View year

Historical Stock Price — 2020

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volume
2020-12-31$104.25$193.76100
2020-12-30$102.27$190.080
2020-12-29$102.27$190.080
2020-12-28$102.27$190.080
2020-12-24$102.27$190.080
2020-12-23$102.27$190.080
2020-12-22$102.27$190.080
2020-12-21$102.27$190.080
2020-12-18$102.27$190.08200
2020-12-17$104.00$193.290
2020-12-16$104.00$193.290
2020-12-15$104.00$193.290
2020-12-14$104.00$193.290
2020-12-11$104.00$193.290
2020-12-10$104.00$193.290
2020-12-09$104.00$193.290
2020-12-08$104.00$193.290
2020-12-07$104.00$193.290
2020-12-04$104.00$193.290
2020-12-03$104.00$193.290
2020-12-02$104.00$193.290
2020-12-01$104.00$193.290
2020-11-30$104.00$193.290
2020-11-27$104.00$193.290
2020-11-25$104.00$193.290
2020-11-24$104.00$193.290
2020-11-23$104.00$193.290
2020-11-20$104.00$193.290
2020-11-19$104.00$193.290
2020-11-18$104.00$193.290
2020-11-17$104.00$193.290
2020-11-16$104.00$193.290
2020-11-13$104.00$193.290
2020-11-12$104.00$193.290
2020-11-11$104.00$193.290
2020-11-10$104.00$193.290
2020-11-09$104.00$193.290
2020-11-06$104.00$193.290
2020-11-05$104.00$193.290
2020-11-04$104.00$193.290
2020-11-03$104.00$193.290
2020-11-02$104.00$193.290
2020-10-30$104.00$193.290
2020-10-29$104.00$193.290
2020-10-28$104.00$193.290
2020-10-27$104.00$193.290
2020-10-26$104.00$193.290
2020-10-23$104.00$193.290
2020-10-22$104.00$193.290
2020-10-21$104.00$193.290
2020-10-20$104.00$193.290
2020-10-19$104.00$193.290
2020-10-16$104.00$193.290
2020-10-15$104.00$193.290
2020-10-14$104.00$193.290
2020-10-13$104.00$193.290
2020-10-12$104.00$193.290
2020-10-09$104.00$193.290
2020-10-08$104.00$193.290
2020-10-07$104.00$191.020
2020-10-06$104.00$191.020
2020-10-05$104.00$191.020
2020-10-02$104.00$191.020
2020-10-01$104.00$191.020
2020-09-30$104.00$191.020
2020-09-29$104.00$191.020
2020-09-28$104.00$191.020
2020-09-25$104.00$191.020
2020-09-24$104.00$191.020
2020-09-23$104.00$191.020
2020-09-22$104.00$191.020
2020-09-21$104.00$191.02349
2020-09-18$102.10$187.530
2020-09-17$102.10$187.53100
2020-09-16$101.85$187.070
2020-09-15$101.85$187.070
2020-09-14$101.85$187.070
2020-09-11$101.85$187.070
2020-09-10$101.85$187.070
2020-09-09$101.85$187.070
2020-09-08$101.85$187.070
2020-09-04$101.85$187.070
2020-09-03$101.85$187.070
2020-09-02$101.85$187.070
2020-09-01$101.85$187.070
2020-08-31$101.85$187.070
2020-08-28$101.85$187.070
2020-08-27$101.85$187.070
2020-08-26$101.85$187.070
2020-08-25$101.85$187.070
2020-08-24$101.85$187.070
2020-08-21$101.85$187.070
2020-08-20$101.85$187.070
2020-08-19$101.85$187.070
2020-08-18$101.85$187.070
2020-08-17$101.85$187.070
2020-08-14$101.85$187.070
2020-08-13$101.85$187.070
2020-08-12$101.85$187.070
2020-08-11$101.85$187.070
2020-08-10$101.85$187.070
2020-08-07$101.85$187.070
2020-08-06$101.85$187.070
2020-08-05$101.85$187.070
2020-08-04$101.85$187.070
2020-08-03$101.85$187.070
2020-07-31$101.85$187.070
2020-07-30$101.85$187.070
2020-07-29$101.85$187.070
2020-07-28$101.85$187.070
2020-07-27$101.85$187.070
2020-07-24$101.85$187.070
2020-07-23$101.85$187.070
2020-07-22$101.85$187.070
2020-07-21$101.85$187.070
2020-07-20$101.85$187.070
2020-07-17$101.85$187.070
2020-07-16$101.85$187.070
2020-07-15$101.85$187.070
2020-07-14$101.85$187.070
2020-07-13$101.85$187.070
2020-07-10$101.85$187.070
2020-07-09$101.85$184.820
2020-07-08$101.85$184.820
2020-07-07$101.85$184.820
2020-07-06$101.85$184.820
2020-07-02$101.85$184.820
2020-07-01$101.85$184.820
2020-06-30$101.85$184.820
2020-06-29$101.85$184.820
2020-06-26$101.85$184.820
2020-06-25$101.85$184.820
2020-06-24$101.85$184.820
2020-06-23$101.85$184.820
2020-06-22$101.85$184.820
2020-06-19$101.85$184.820
2020-06-18$101.85$184.820
2020-06-17$101.85$184.820
2020-06-16$101.85$184.820
2020-06-15$101.85$184.820
2020-06-12$101.85$184.820
2020-06-11$101.85$184.820
2020-06-10$101.85$184.82600
2020-06-09$102.80$186.540
2020-06-08$102.80$186.540
2020-06-05$102.80$186.540
2020-06-04$102.80$186.540
2020-06-03$102.80$186.540
2020-06-02$102.80$186.540
2020-06-01$102.80$186.540
2020-05-29$102.80$186.54200
2020-05-28$102.00$185.09200
2020-05-27$102.00$185.090
2020-05-26$102.00$185.090
2020-05-22$102.00$185.090
2020-05-21$102.00$185.091,558
2020-05-20$101.76$184.660
2020-05-19$101.76$184.660
2020-05-18$101.76$184.660
2020-05-15$101.76$184.660
2020-05-14$101.76$184.660
2020-05-13$101.76$184.660
2020-05-12$101.76$184.660
2020-05-11$101.76$184.66300
2020-05-08$101.00$183.280
2020-05-07$101.00$183.280
2020-05-06$101.00$183.280
2020-05-05$101.00$183.280
2020-05-04$101.00$183.280
2020-05-01$101.00$183.280
2020-04-30$101.00$183.280
2020-04-29$101.00$183.280
2020-04-28$101.00$183.280
2020-04-27$101.00$183.280
2020-04-24$101.00$183.280
2020-04-23$101.00$183.280
2020-04-22$101.00$183.280
2020-04-21$101.00$183.280
2020-04-20$101.00$183.280
2020-04-17$101.00$183.280
2020-04-16$101.00$183.280
2020-04-15$101.00$183.280
2020-04-14$101.00$183.280
2020-04-13$101.00$183.280
2020-04-09$101.00$183.283,880
2020-04-08$99.00$177.420
2020-04-07$99.00$177.420
2020-04-06$99.00$177.420
2020-04-03$99.00$177.420
2020-04-02$99.00$177.42200
2020-04-01$99.80$178.860
2020-03-31$99.80$178.860
2020-03-30$99.80$178.860
2020-03-27$99.80$178.860
2020-03-26$99.80$178.860
2020-03-25$99.80$178.86200
2020-03-24$100.00$179.22100
2020-03-23$96.25$172.50100
2020-03-20$98.00$175.630
2020-03-19$98.00$175.63200
2020-03-18$101.10$181.190
2020-03-17$101.10$181.190
2020-03-16$101.10$181.19100
2020-03-13$101.85$182.530
2020-03-12$101.85$182.530
2020-03-11$101.85$182.530
2020-03-10$101.85$182.530
2020-03-09$101.85$182.53205
2020-03-06$105.00$188.180
2020-03-05$105.00$188.180
2020-03-04$105.00$188.180
2020-03-03$105.00$188.180
2020-03-02$105.00$188.180
2020-02-28$105.00$188.180
2020-02-27$105.00$188.180
2020-02-26$105.00$188.180
2020-02-25$105.00$188.180
2020-02-24$105.00$188.180
2020-02-21$105.00$188.180
2020-02-20$105.00$188.180
2020-02-19$105.00$188.180
2020-02-18$105.00$188.180
2020-02-14$105.00$188.180
2020-02-13$105.00$188.180
2020-02-12$105.00$188.180
2020-02-11$105.00$188.180
2020-02-10$105.00$188.180
2020-02-07$105.00$188.180
2020-02-06$105.00$188.180
2020-02-05$105.00$188.180
2020-02-04$105.00$188.180
2020-02-03$105.00$188.180
2020-01-31$105.00$188.18100
2020-01-30$104.25$186.830
2020-01-29$104.25$186.830
2020-01-28$104.25$186.830
2020-01-27$104.25$186.830
2020-01-24$104.25$186.830
2020-01-23$104.25$186.83300
2020-01-22$103.50$185.490
2020-01-21$103.50$185.490
2020-01-17$103.50$185.490
2020-01-16$103.50$185.490
2020-01-15$103.50$185.490
2020-01-14$103.50$185.490
2020-01-13$103.50$185.490
2020-01-10$103.50$185.490
2020-01-09$103.50$183.290
2020-01-08$103.50$183.290
2020-01-07$103.50$183.290
2020-01-06$103.50$183.290
2020-01-03$103.50$183.290
2020-01-02$103.50$183.290