Olin Corporation (OLN) P/E Ratio History
Historical price-to-earnings valuation from 1989 to 2025
Loading P/E history...
OLN Valuation Context
How does the current P/E compare to historical and market benchmarks?
P/E Ratio Analysis
As of May 7, 2026, Olin Corporation (OLN) trades at a price-to-earnings ratio of -72.3x, with a stock price of $26.76 and trailing twelve-month earnings per share of $-1.12.
The current P/E is 502% below its 5-year average of 18.0x. Over the past five years, OLN's P/E has ranged from a low of 4.6x to a high of 54.1x, placing the current valuation at the 0th percentile of its historical range.
Compared to the Basic Materials sector median P/E of 23.4x, OLN trades at a 409% discount to its sector peers. The sector includes 125 companies with P/E ratios ranging from 2.0x to 144.2x.
Relative to the broader market, OLN 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 OLN 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.
OLN P/E vs Peers
P/E ratio compared to closely matched public peers
| Company | Market Cap | P/E Ratio | PEG Ratio | EPS Growth (1Y) |
|---|---|---|---|---|
| $8B | 18.0 | 5.59 | -47% | |
| $6B | 16.4Lowest | 0.60Best | -2% | |
| $13B | 19.0 | 1.05 | +17%Best |
Peers sorted by market capitalization. P/E below peers may indicate undervaluation or lower growth expectations. Consider PEG ratio for growth-adjusted comparison.
OLN Historical P/E Data (1989–2025)
Quarterly P/E ratios calculated from closing price and TTM EPS
| Quarter | Date | Price | TTM EPS | P/E Ratio | vs Avg |
|---|---|---|---|---|---|
| FY2025 Q3 | $24.99 | $0.46 | 54.1x | +37% | |
| FY2025 Q1 | Mon Mar 31 2025 00:00:00 GM | $24.24 | $0.51 | 47.2x | +20% |
| FY2024 Q4 | $33.80 | $0.90 | 37.5x | -5% | |
| FY2024 Q3 | Mon Sep 30 2024 00:00:00 GM | $47.98 | $1.24 | 38.7x | -2% |
| FY2024 Q2 | Sun Jun 30 2024 00:00:00 GM | $47.15 | $2.27 | 20.8x | -47% |
| FY2024 Q1 | Sun Mar 31 2024 00:00:00 GM | $58.80 | $2.78 | 21.2x | -46% |
| FY2023 Q4 | Sun Dec 31 2023 00:00:00 GM | $53.95 | $3.52 | 15.3x | -61% |
| FY2023 Q3 | Sat Sep 30 2023 00:00:00 GM | $49.98 | $4.52 | 11.1x | -72% |
| FY2023 Q2 | Fri Jun 30 2023 00:00:00 GM | $51.39 | $5.88 | 8.7x | -78% |
| FY2023 Q1 | Fri Mar 31 2023 00:00:00 GM | $55.50 | $7.51 | 7.4x | -81% |
| FY2022 Q4 | Sat Dec 31 2022 00:00:00 GM | $52.94 | $8.85 | 6.0x | -85% |
| FY2022 Q3 | Fri Sep 30 2022 00:00:00 GM | $42.88 | $9.31 | 4.6x | -88% |
Average P/E for displayed period: 39.4x
See OLN's True Return
Price is only half the story. See total return with reinvested dividends.
Launch CalculatorIs OLN Undervalued?
DCF intrinsic value, peer multiples, and analyst estimates — see what the stock is really worth.
View ValuationCompare OLN vs LIN
Side-by-side business, growth, and profitability comparison vs Linde plc.
Start ComparisonOLN — Frequently Asked Questions
Quick answers to the most common questions about buying OLN stock.
Is OLN stock overvalued or undervalued?
OLN trades at -72.3x P/E, below its 5-year average of 18.0x. At the N/A percentile of historical range, the stock is priced at a discount to its own history.
How does OLN's valuation compare to peers?
Olin Corporation P/E of -72.3x compares to sector median of 23.4x. The discount suggests lower growth expectations or higher risk.
What is OLN's PEG ratio?
OLN PEG ratio is N/A. Above 2.0 indicates premium valuation relative to growth rate. Historical P/E data spans 1989-2025.