Daily trading records
NiSource Stock Price on August 31, 2026
Direct answer
NiSource closed at $40.92 on August 31, 2026.
The open was $40.44, the high was $41.075 and the low was $40.09.
Volume was 6,917,857. The change from the prior close was +$0.35 (+0.86%).
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Review NiSource's price trend and period performance.
The chart connects verified session closes from June 4, 2026 through August 31, 2026.
Period performance is calculated from verified trading sessions.
5-session performance
+0.22%
From the August 24, 2026 close of $40.83 to $40.92 on August 31, 2026.
20-session performance
-8.11%
From the August 3, 2026 close of $44.53 to $40.92 on August 31, 2026.
60-session performance
-10.75%
From the June 4, 2026 close of $45.85 to $40.92 on August 31, 2026.
Verified data
- Open
- $40.44
- High
- $41.075
- Low
- $40.09
- Close
- $40.92
- Volume
- 6,917,857
- Prior-close change
- +$0.35 (+0.86%)
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Read the frequently asked questions.
What was NiSource's closing price on August 31, 2026?
NiSource closed at $40.92 on August 31, 2026.
What were NiSource's open, high and low on August 31, 2026?
The open was $40.44, the high was $41.075 and the low was $40.09.
How much did NiSource change from the prior close on August 31, 2026?
The change from the prior close was +$0.35 (+0.86%).
What was NiSource's volume on August 31, 2026?
Trading volume was 6,917,857 shares.
What is the source for NiSource's daily prices?
Daily aggregate prices are provided by Polygon.