Arena Pharmaceuticals, Inc.
Arena Pharmaceuticals, Inc. (ARNA) PE Ratio — Current & Historical Data
Trailing twelve months (TTM) P/E, forward P/E, PEG, and annual PE history — from market prices and filings.
arna · pe ratio · data through Dec 31, 2021
Core PE Ratio Metrics
Trailing 12 months · TTMThe price-to-earnings (P/E) ratio for Arena Pharmaceuticals, Inc. (ARNA) measures how much investors pay for each dollar of the company's trailing earnings. ARNA's current PE ratio of N/A is calculated by dividing its stock price of $99.99 by its TTM earnings per share of -$11.33.
Source: FMP · /ratios-ttm · /analyst-estimates · 2021-12-31
PE Ratio History
2002 – 2021 · Annual▸ FMP /ratios?period=annual&limit=20 · priceToEarningsRatio + netIncomePerShare (Annual)
PE Ratio vs Peers
Biotechnology · 6 peers · Annual PE| Company | Market Cap | PE (Annual) | vs Avg | EPS (TTM) |
|---|---|---|---|---|
Arena Pharmaceuticals, Inc.You ARNA | — | N/A | — | -$11.33 |
 Abcam plc ABCM | $5.5B | N/A | — | -$0.04 |
 Cerevel Therapeutics Holdings, Inc. CERE | $8.2B | N/A | — | -$2.67 |
 IVERIC bio, Inc. ISEE | $5.5B | N/A | — | -$1.45 |
 MorphoSys AG MOR | $2.9B | N/A | — | -$1.38 |
 Mirati Therapeutics, Inc. MRTX | $4.1B | N/A | — | -$13.18 |
 Opthea Limited OPT | $4.2B | N/A | — | -$1.07 |
* N/A — Company is not profitable (TTM) · excluded from industry average · ▸ FMP /stock-peers + /ratios?limit=1 · priceToEarningsRatio
Annual PE Ratio History
| Fiscal Year End | PE Ratio | EPS (TTM) | YoY Change | PE vs Max |
|---|---|---|---|---|
2021-12-31Latest FY2021 | — | $-11.33 | — | |
2020-12-31 FY2020 | — | $-7.39 | — | |
2019-12-31 FY2019 | 5.91x | $7.69 | — | |
2018-12-31 FY2018 | — | $-0.62 | — | |
2017-12-31 FY2017 | — | $-2.77 | — | |
2016-12-31 FY2016 | — | $-0.93 | — | |
2015-12-31 FY2015 | — | $-4.49 | — | |
2014-12-31 FY2014 | — | $-2.75 | — | |
2013-12-31 FY2013 | — | $-0.89 | — | |
2012-12-31 FY2012 | — | $-4.35 | — |
▸ FMP /ratios?period=annual&limit=20 · priceToEarningsRatio + netIncomePerShare · Zero extra API
About PE Ratio & Methodology
The price-to-earnings (P/E) ratio for Arena Pharmaceuticals, Inc. (ARNA) measures how much investors pay for each dollar of the company's trailing earnings. ARNA's current PE ratio of N/A is calculated by dividing its stock price of $99.99 by its TTM earnings per share of -$11.33.
Frequently asked questions
ARNA pe ratio · 6 questionsARNA's current PE ratio is N/A as of 2026-06-09, based on a stock price of $99.99 and TTM EPS of -$11.33. Data sourced from Financial Modeling Prep via ARNA's SEC 10-K and 10-Q filings.
▸ Source: FMP · /ratios-ttm · /ratios annual · /analyst-estimates · /stock-peers · Arena Pharmaceuticals, Inc. SEC 10-K & 10-Q filings · US GAAP · Updated: 2026-06-09