| Volume | 439,176 |
| Open | 1.140 |
| Bid (Size) | 1.160 (1,500) |
| Ask (Size) | 1.260 (100) |
| Prev. Close | 1.140 |
| Today's Range | 1.130 - 1.210 |
| 52wk Range | 1.080 - 3.080 |
| Shares Outstanding | 52,571,813 |
| Dividend Yield | N/A |
Spero Therapeutics, Inc. - Common Stock (SPRO) traded between $1.08 and $3.08 over the past 52 weeks and last traded at $1.20, 61.0% below its 52-week high. Over the past week it ranged between $1.13 and $1.24.
SPRO was -49.2% over the past year, -55.1% over six months, -48.9% year to date, +3.4% in the last week.
Over the past 12 months SPRO returned -49.2% versus DIA (Dow) +11.4%, SPY (S&P 500) +16.0%, QQQ (Nasdaq 100) +23.0% and IWM (Russell 2000) +13.8%.
SPRO most recently traded 439,176 shares against a 3-month average daily volume of 1.2M.