How does Pacific Biosciences of California, Inc.’s P/E ratio compare with its history?
On this page, PACB's current P/E is -3.0, compared with a multi-year average around 145.7. A lower P/E versus its own history is a calculated gap versus that average—not a conclusion that the stock is cheap. Pair it with profitability and earnings quality in the table (for example ROE/ROIC) to see whether the multiple moved with earnings.