Range Low Price High Price Comment
30 days $25.18 $30.00 Monday, 17th Nov 2025 KOP stock ended at $27.86. This is 3.73% less than the trading day before Friday, 14th Nov 2025. During the day the stock fluctuated 4.09% from a day low at $27.85 to a day high of $28.99.
90 days $25.18 $30.39
52 weeks $22.99 $39.79

Historical Koppers Holdings Inc prices

Date Open High Low Close Volume
Nov 17, 2025 $28.98 $28.99 $27.85 $27.86 184 599
Nov 14, 2025 $29.34 $29.75 $28.51 $28.94 230 896
Nov 13, 2025 $28.00 $29.58 $28.00 $29.39 162 944
Nov 12, 2025 $28.32 $28.87 $28.14 $28.55 165 492
Nov 11, 2025 $27.89 $28.37 $27.48 $28.30 191 726
Nov 10, 2025 $26.97 $27.89 $26.03 $27.70 149 577
Nov 07, 2025 $28.65 $28.65 $25.18 $26.70 182 361
Nov 06, 2025 $28.15 $30.00 $27.74 $27.84 172 889
Nov 05, 2025 $28.07 $28.50 $27.84 $28.05 181 361
Nov 04, 2025 $27.86 $28.48 $26.93 $28.24 104 042
Nov 03, 2025 $28.13 $28.39 $27.53 $28.17 173 242
Oct 31, 2025 $27.39 $28.39 $27.10 $28.22 125 026
Oct 30, 2025 $28.52 $28.67 $27.26 $27.61 121 784
Oct 29, 2025 $29.38 $29.83 $28.82 $29.25 219 510
Oct 28, 2025 $29.19 $29.52 $28.87 $29.37 139 406
Oct 27, 2025 $29.36 $29.63 $28.96 $29.41 152 006
Oct 24, 2025 $29.12 $29.44 $29.07 $29.14 85 577
Oct 23, 2025 $28.62 $28.99 $28.42 $28.72 104 670
Oct 22, 2025 $27.95 $28.43 $27.94 $28.38 145 003
Oct 21, 2025 $27.02 $28.03 $27.00 $27.99 153 347
Oct 20, 2025 $26.92 $27.15 $26.57 $27.01 119 246
Oct 17, 2025 $26.51 $26.90 $26.45 $26.74 131 131
Oct 16, 2025 $26.49 $26.74 $26.17 $26.74 116 367
Oct 15, 2025 $26.90 $27.39 $26.26 $26.43 101 852
Oct 14, 2025 $26.46 $26.99 $26.38 $26.69 94 669

FAQ

What are historical stock prices?
Historical stock prices refer to a stock’s recorded prices at various past points. These prices include several key figures that help investors and analysts evaluate a stock’s performance over time:
Open: Open price for the trading day.
High: Highest price for the trading day.
Low: Lowest price for the trading day.
Close: Close price for the trading day.

Additionally, historical prices often include:
Volume is the number of shares traded during the day. It indicates how actively a stock was traded and can provide insights into market sentiment and liquidity.

How can I use KOP stock historical prices to predict future price movements?
Trend Analysis: Examine the KOP stock’s historical trends to identify patterns that might continue.
Moving Averages: Use moving averages to detect potential reversal points.
Momentum Indicators: Apply indicators like RSI or MACD to assess the momentum and strength of price movements.
Volume Analysis: Analyze trading volume alongside price changes to gauge trend strength.
Statistical Methods: Use statistical tools such as regression analysis to model and forecast future prices based on past data.
These techniques can provide insights but should be used with risk management practices to mitigate potential losses.

What impact do stock splits have on historical price data?
When a company performs a stock split, it adjusts the historical price data to reflect the new, lower trading price as if it had always been that way.

This ensures consistency for anyone analyzing the stock’s past prices. The adjustment helps prevent misleading signals on charts, such as false sell signals or bearish trends that aren’t there. For instance, in a 2-for-1 stock split, the price per share is cut in half, which would otherwise appear as a dramatic drop on the chart. If someone didn’t know about the split, they might wrongly think something negative happened to the company. Most technical indicators would also react to this apparent drop by signaling to sell.

A stock split, while making the shares seem more affordable and potentially more attractive to investors, doesn’t alter the company’s fundamental value.

Why do the KOP stock historical prices show a range for periods like 30 days, 90 days, and 52 weeks?
The range provides the lowest and highest prices at which the stock has traded during the specified period. This helps investors understand the stock’s volatility and price variability within that timeframe.

How can I use historical price volatility to assess risk?
High price volatility historically indicates higher risk and potentially higher returns. Investors can gauge the stock’s risk level by examining the range between high and low prices over various periods.
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ABOUT KOPPERS HOLDINGS INC
Koppers Holdings
Koppers Holdings Inc. provides treated wood products, wood preservation chemicals, and carbon compounds in the United States, Australasia, Europe, and internationally. The company operates through three segments: Railroad and Utility Products and Services (RUPS), Performance Chemicals (PC), and Carbon Materials and Chemicals (CMC). The RUPS segment procures and treats crossties, switch ties, and various types of lumber used for railroad bridges a...
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