NSSC (Napco Security Technologies Inc.) historical data
STOCKListed1-minute bars
| Symbol | NSSC |
|---|---|
| Name | Napco Security Technologies Inc. |
| Exchange | NASDAQ |
| Sector | Industrials |
| Industry | Security & Protection Services |
| IPO date | 1981-12-29 |
| History | 2004-02-25 to 2026-10-09 (about 22 years) |
| Bar sizes | Daily, hourly, 5-minute and 1-minute |
| Adjustments | Unadjusted, split-adjusted or split-and-dividend-adjusted, chosen on read |
| Survivorship | Included in the survivorship-free universe |
| Free tier | Last 12 months of daily bars |
Price history at a glance
NSSC last closed at $36.14 on 2026-10-09, -14.4% over the past year and +73.4% over five years. Its deepest fall from a prior high in this history was -93.1%, reached on 2009-03-05.
| Last close | $36.14 (2026-10-09) |
|---|---|
| 1-year change | -14.4% |
| 5-year change | +73.4% |
| Annualized since 2004-02-25 | +17.7% |
| 52-week range | $34.65 – $46.65 |
| Deepest drawdown | -93.1% (2009-03-05) |
| Avg. daily dollar volume (3 months) | $13.5m |
| Daily bars in history | 5,686 |
Split- and dividend-adjusted closes. Computed by FinzData from its own daily bars.
Institutional ownership (13F, 2026Q2)
| Managers holding | 258 |
|---|---|
| Shares held | 36,154,504 ($1.4bn reported value) |
| Quarter flows | 30 new, 107 added, 90 trimmed, 43 exited; +1,478,686 shares vs the prior quarter |
From SEC Form 13F filings. Every holder, line by line, and the full history since 2013: yf.Client().holders("NSSC") on the look-back bundles. Top holders of NSSC · All 13F managers
Short interest (2026-09-30)
| Shares short | 2,351,553 (-9.3% vs prior report) |
|---|---|
| Days to cover | 6.60 |
NSSC short interest history · Industrials sector
Get it in Python
import finzdata as yf
df = yf.Ticker("NSSC").history(start="2004-02-25", interval="1d")
df.tail()