Range Low Price High Price Comment
30 days $0.0701 $0.150 Monday, 22nd Jun 2026 PRPH stock ended at $0.0780. This is 4.00% more than the trading day before Thursday, 18th Jun 2026. During the day the stock fluctuated 3.86% from a day low at $0.0751 to a day high of $0.0780.
90 days $0.0680 $0.180
52 weeks $0.0680 $1.15

Historical ProPhase Labs prices

Date Open High Low Close Volume
Jun 22, 2026 $0.0751 $0.0780 $0.0751 $0.0780 1 612
Jun 18, 2026 $0.0701 $0.0750 $0.0701 $0.0750 10 221
Jun 17, 2026 $0.0751 $0.0751 $0.0750 $0.0750 113 711
Jun 16, 2026 $0.0751 $0.0835 $0.0751 $0.0775 5 820
Jun 15, 2026 $0.0750 $0.0810 $0.0750 $0.0802 1 662
Jun 12, 2026 $0.0950 $0.0950 $0.0723 $0.0800 93 825
Jun 11, 2026 $0.0998 $0.0998 $0.0998 $0.0998 349
Jun 10, 2026 $0.100 $0.100 $0.0994 $0.0998 44 948
Jun 09, 2026 $0.100 $0.103 $0.100 $0.100 853
Jun 08, 2026 $0.0900 $0.102 $0.0900 $0.100 9 333
Jun 05, 2026 $0.105 $0.110 $0.0900 $0.110 59 424
Jun 04, 2026 $0.150 $0.150 $0.100 $0.130 130 800
Jun 03, 2026 $0.135 $0.149 $0.135 $0.135 18 877
Jun 02, 2026 $0.120 $0.150 $0.120 $0.137 123 370
Jun 01, 2026 $0.0999 $0.116 $0.0964 $0.116 37 030
May 29, 2026 $0.0950 $0.100 $0.0950 $0.100 28 533
May 28, 2026 $0.120 $0.120 $0.0801 $0.0856 12 081
May 27, 2026 $0.0857 $0.0857 $0.0810 $0.0836 229
May 26, 2026 $0.119 $0.119 $0.0856 $0.0857 1 032
May 22, 2026 $0.119 $0.119 $0.0981 $0.0985 7
May 21, 2026 $0.0850 $0.119 $0.0850 $0.0962 57
May 20, 2026 $0.0994 $0.100 $0.0994 $0.100 112
May 19, 2026 $0.104 $0.104 $0.0850 $0.0850 14 053
May 18, 2026 $0.104 $0.104 $0.104 $0.104 7 718
May 15, 2026 $0.104 $0.110 $0.104 $0.110 5 549

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 PRPH stock historical prices to predict future price movements?
Trend Analysis: Examine the PRPH 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 PRPH 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 PROPHASE LABS
ProPhase Labs
ProPhase Labs, Inc. engages in the research, development, manufacture, distribution, marketing, and sale of over the counter (OTC) consumer healthcare products and dietary supplements in the United States. The company operates in two segments, Diagnostic Services and Consumer Products. It offers a range of OTC dietary supplements, including Legendz XL for male sexual health; and Triple Edge XL, an energy and stamina booster. The company also prov...
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