BLFS stock price history
STOCKDelisted1, 5, 15, 30-minute, hourly & daily bars
| Symbol | BLFS-DELISTED |
|---|---|
| History | 2007-05-17 to 2026-10-05 (about 19 years) |
| Bar sizes | 1-minute, 5-minute, 15-minute, 30-minute, hourly and daily |
| Adjustments | Unadjusted, split-adjusted or split-and-dividend-adjusted, chosen on read |
| Survivorship | Delisted: kept in full, so backtests see the whole history |
| Free tier | Last 12 months of daily bars |
Price history at a glance
BLFS last closed at $38.61 on 2026-10-05, +45.2% over the past year and -3.0% over five years. Its deepest fall from a prior high in this history was -90.5%, reached on 2011-09-13.
| Last close | $38.61 (2026-10-05) |
|---|---|
| 1-year change | +45.2% |
| 5-year change | -3.0% |
| Annualized since 2007-05-17 | +33.6% |
| 52-week range | $18.15 – $39.22 |
| Deepest drawdown | -90.5% (2011-09-13) |
| Avg. daily dollar volume (3 months) | $38.6m |
| Daily bars in history | 4,544 |
Split- and dividend-adjusted closes. Computed by FinzData from its own daily bars.
Short interest (2026-09-30)
| Shares short | 3,999,252 (+3.0% vs prior report) |
|---|---|
| Days to cover | 4.33 |
BLFS short interest history · Healthcare sector
BLFS FAQ
How far back does BLFS price history go?
2007-05-17 to 2026-10-05
Is BLFS still trading?
No. BLFS was delisted; its last bar is 2026-10-05, and FinzData keeps the full history so backtests stay survivorship-free.
What was BLFS's last close?
$38.61 on 2026-10-05, +45.2% over one year
How do I download BLFS historical data in Python?
pip install finzdata, then yf.Ticker("BLFS-DELISTED").history(start="2007-05-17")
Get it in Python
import finzdata as yf
df = yf.Ticker("BLFS-DELISTED").history(start="2007-05-17", interval="1d")
m15 = yf.Ticker("BLFS-DELISTED").history(period="5d", interval="15m") # also 1m, 5m, 30m, 1h
df.tail()