Other US listings · AILIO · stock
Ameren Illinois Co (AILIO) stock price history
Every Other US listings trading session of Ameren Illinois Co from Nov 9, 2012 to Jul 17, 2026: 3,440 daily bars, adjusted for splits and dividends, with minute bars arriving as capture begins. The full series is served by the API: a free key covers the last year, paid plans the whole history and minute bars.
AILIO adjusted close, 2012 to 2026
- $102.80
- All time high, 2019
- $70.92
- 52 week high, $63.00 low
- 3,440
- Daily sessions since 2012
Last updated Jul 17, 2026, the last stored session. Refreshes after each trading day. Full 2012 to 2026 series and minute bars.
AILIO key facts
- Ameren Illinois Co (AILIO) closed at $70.89 on Jul 17, 2026 on Other US listings.
- AILIO's all time high close is $102.80, set on Jul 2, 2019; its all time low close is $49.00 on Mar 20, 2013.
- AILIO's 52 week range is $63.00 to $70.92.
- AILIO returned +7.7% over the year to Jul 17, 2026 and -1.7% over five years.
- Over ten years AILIO returned +18%, +1.7% a year compounded.
- AILIO's deepest drawdown was -49.1% from Jul 3, 2019 to Oct 6, 2023.
- DataCedar holds 3,440 daily sessions of AILIO history from Nov 9, 2012, adjusted for splits and dividends, served by the API under a key.
AILIO price chart, 2012 to 2026
AILIO returns
Price return from the last close on or before the window start to Jul 17, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | +1.5% |
| 3 months | +0.4% |
| 6 months | +7.0% |
| Year to date | +6.0% |
| 1 year | +7.7% |
| 3 years | +6.0% |
| 5 years | -1.7% |
| 10 years | +17.8% |
| Since Nov 9, 2012 | +38.9% |
| Compound annual growth, 13.7 years | +2.4% |
AILIO records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- $102.80 on Jul 2, 2019
- All time low close
- $49.00 on Mar 20, 2013
- 52 week high
- $70.92 on Apr 30, 2026
- 52 week low
- $63.00 on Aug 11, 2025
- Deepest drawdown
- -49.1% from Jul 3, 2019 to Oct 6, 2023, not yet recovered
- Best single session
- +54.6% on Jul 2, 2019
- Worst single session
- -38.9% on Jul 5, 2019
- Volatility, 1 year annualised
- 14.4%
- Sessions closing higher, 1 year
- 5%
- Best calendar year
- 2024, +14%
- Worst calendar year
- 2022, -18%
AILIO price history by year
Open is the first session's open, high and low span the year, close is the last session's close, and the return is close over the previous year's close. 2012 starts on Nov 9, 2012; 2026 runs to Jul 17, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | $66.86 | $70.92 | $65.04 | $70.89 | +6.0% | 2.1K | 135 |
| 2025 | $63.99 | $69.73 | $62.04 | $66.86 | +4.5% | 3.6K | 250 |
| 2024 | $56.23 | $66.24 | $56.23 | $63.99 | +13.8% | 3.7K | 252 |
| 2023 | $61.40 | $68.73 | $52.36 | $56.23 | -8.4% | 4.3K | 250 |
| 2022 | $74.61 | $75.43 | $61.40 | $61.40 | -17.7% | 5.6K | 251 |
| 2021 | $72.83 | $75.53 | $69.19 | $74.61 | +2.5% | 2.6K | 252 |
| 2020 | $68.72 | $72.84 | $68.72 | $72.83 | +6.0% | 4K | 253 |
| 2019 | $63.67 | $102.80 | $62.81 | $68.72 | +7.9% | 3.4K | 252 |
| 2018 | $62.98 | $65.62 | $61.92 | $63.67 | +1.1% | 2.3K | 251 |
| 2017 | $61.12 | $64.00 | $59.67 | $62.98 | +3.0% | 1.8K | 251 |
| 2016 | $58.23 | $61.72 | $56.48 | $61.12 | +5.0% | 3K | 252 |
| 2015 | $54.01 | $58.82 | $53.78 | $58.23 | +7.8% | 11.6K | 252 |
| 2014 | $51.86 | $54.85 | $50.68 | $54.01 | +4.1% | 11.7K | 252 |
| 2013 | $51.04 | $53.90 | $49.00 | $51.86 | +1.6% | 24.3K | 252 |
| 2012 | $51.04 | $51.04 | $51.04 | $51.04 | n/a | 0 | 35 |
AILIO monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| July 2026 | $70.89 | +1.5% |
| June 2026 | $69.82 | 0.0% |
| May 2026 | $69.82 | -0.0% |
| April 2026 | $69.83 | +0.4% |
| March 2026 | $69.56 | +2.6% |
| February 2026 | $67.82 | +1.2% |
| January 2026 | $67.05 | +0.3% |
| December 2025 | $66.86 | -4.1% |
| November 2025 | $69.73 | 0.0% |
| October 2025 | $69.73 | +9.1% |
| September 2025 | $63.94 | +1.5% |
| August 2025 | $63.00 | -4.3% |
About the AILIO data
Daily bars. 3,440 sessions from Nov 9, 2012 to Jul 17, 2026, one row per Other US listings trading day with open, high, low, close and volume. Prices are adjusted for splits and cash dividends so the series is comparable across its whole length; the API also serves the raw, split only and dividend only views.
Minute bars. Not stored for this listing yet. Minute history is captured forward from the day collection begins for a symbol and is never backfilled.
Time and currency. Session dates are Other US listings trading days; minute timestamps are UTC. Prices are in USD. Volume is shares traded on the session.
Get the data. The REST endpoint returns the daily series as JSON with pagination; a free key serves the last year, Quant and above the full history back to Nov 9, 2012, and minute bars come with the paid windows. It takes timeframe (1Min, 5Min, 15Min, 1Hour, 1Day), adjustment, start and end. See the bars endpoint and authentication, and pricing for the plan windows.
curl "https://api.datacedar.com/v3/stocks/AILIO/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on Other US listings
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Common questions
AILIO share price history
