Ardelyx, Inc. (ARDX) P/E Ratio History
Historical price-to-earnings valuation from 2015 to 2015
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ARDX Valuation Context
How does the current P/E compare to historical and market benchmarks?
P/E Ratio Analysis
As of May 8, 2026, Ardelyx, Inc. (ARDX) trades at a price-to-earnings ratio of -26.8x, with a stock price of $6.98 and trailing twelve-month earnings per share of $-0.24.
The current P/E is 116% below its 5-year average of 166.9x. Over the past five years, ARDX's P/E has ranged from a low of 166.9x to a high of 166.9x, placing the current valuation at the 0th percentile of its historical range.
Compared to the Healthcare sector median P/E of 22.3x, ARDX trades at a 220% discount to its sector peers. The sector includes 241 companies with P/E ratios ranging from 0.0x to 177.5x.
Relative to the broader market, ARDX trades at a notable discount to the S&P 500 median P/E of 25.1x. Investors should consider the company's growth prospects, competitive position, and earnings quality when evaluating whether the current valuation is justified.
For a comprehensive intrinsic value estimate using discounted cash flow analysis, see our ARDX DCF Valuation Calculator →
Note: P/E ratio is just one valuation metric. It does not account for balance sheet strength, cash flow quality, or growth sustainability. Always conduct comprehensive due diligence before making investment decisions.
ARDX P/E vs Peers
P/E ratio compared to closely matched public peers
| Company | Market Cap | P/E Ratio | PEG Ratio | EPS Growth (1Y) |
|---|---|---|---|---|
| $213M | 1.2Lowest | - | +472% | |
| $2B | 6.9 | 0.67Best | +817%Best | |
| $178B | 23.1 | 7.86 | +88% |
Peers sorted by market capitalization. P/E below peers may indicate undervaluation or lower growth expectations. Consider PEG ratio for growth-adjusted comparison.
ARDX Historical P/E Data (2015–2015)
Quarterly P/E ratios calculated from closing price and TTM EPS
| Quarter | Date | Price | TTM EPS | P/E Ratio | vs Avg |
|---|---|---|---|---|---|
| FY2015 Q2 | $3.99 | $0.02 | 166.9x | +0% |
Average P/E for displayed period: 166.9x
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Start ComparisonARDX — Frequently Asked Questions
Quick answers to the most common questions about buying ARDX stock.
Is ARDX stock overvalued or undervalued?
ARDX trades at -26.8x P/E, below its 5-year average of 166.9x. At the N/A percentile of historical range, the stock is priced at a discount to its own history.
How does ARDX's valuation compare to peers?
Ardelyx, Inc. P/E of -26.8x compares to sector median of 22.3x. The discount suggests lower growth expectations or higher risk.
What is ARDX's PEG ratio?
ARDX PEG ratio is N/A. Above 2.0 indicates premium valuation relative to growth rate. Historical P/E data spans 2015-2015.