NYSE · NPKI · stock
NPK International Inc. (NPKI) stock price history
Every NYSE trading session of NPK International Inc. from Sep 6, 1990 to Sep 28, 2026: 9,080 daily bars, adjusted for splits and dividends, with minute bars from Jul 13, 2026 forward. The full series is served by the API: a free key covers the last year, paid plans the whole history and minute bars.
NPKI adjusted close, 1990 to 2026
- $24.06
- All time high, 1998
- $16.50
- 52 week high, $10.73 low
- 9,080
- Daily sessions since 1990
Last updated Sep 28, 2026, the last stored session. Refreshes after each trading day. Full 1990 to 2026 series and minute bars.
NPKI key facts
- NPK International Inc. (NPKI) closed at $11.58 on Sep 28, 2026 on NYSE.
- NPKI's all time high close is $24.06, set on Apr 30, 1998; its all time low close is $0.6700 on Apr 1, 2020.
- NPKI's 52 week range is $10.73 to $16.50.
- NPKI returned +2.4% over the year to Sep 28, 2026 and +241.6% over five years.
- Over ten years NPKI returned +66%, +5.2% a year compounded.
- NPKI's deepest drawdown was -97.2% from Apr 30, 1998 to Apr 1, 2020.
- DataCedar holds 9,080 daily sessions of NPKI history from Sep 6, 1990 and minute bars from Jul 13, 2026, adjusted for splits and dividends, served by the API under a key.
NPKI price chart, 1990 to 2026
NPKI returns
Price return from the last close on or before the window start to Sep 28, 2026, on adjusted closes.
| Period | Return |
|---|---|
| 1 month | -12.0% |
| 3 months | -25.8% |
| 6 months | -20.7% |
| Year to date | -4.5% |
| 1 year | +2.4% |
| 3 years | +62.9% |
| 5 years | +241.6% |
| 10 years | +65.9% |
| Since Sep 6, 1990 | +745.8% |
| Compound annual growth, 36.1 years | +6.1% |
NPKI records
Measured on the stored closes; every figure is reproducible from the API series.
- All time high close
- $24.06 on Apr 30, 1998
- All time low close
- $0.6700 on Apr 1, 2020
- 52 week high
- $16.50 on May 1, 2026
- 52 week low
- $10.73 on Oct 10, 2025
- Deepest drawdown
- -97.2% from Apr 30, 1998 to Apr 1, 2020, not yet recovered
- Best single session
- +32.4% on Apr 29, 2020
- Worst single session
- -44.9% on Mar 9, 2020
- Volatility, 1 year annualised
- 40.5%
- Sessions closing higher, 1 year
- 50%
- Growth of 1 since 1990
- 8.5×
- Best calendar year
- 1994, +167%
- Worst calendar year
- 2020, -69%
NPKI price history by year
Open is the first session's open, high and low span the year, close is the last session's close, and the return is close over the previous year's close. 1990 starts on Sep 6, 1990; 2026 runs to Sep 28, 2026.
| Year | Open | High | Low | Close | Return | Volume | Sessions |
|---|---|---|---|---|---|---|---|
| 2026 | $12.02 | $16.50 | $11.45 | $11.58 | -2.9% | 156.1M | 185 |
| 2025 | $7.76 | $14.00 | $4.76 | $11.92 | +55.4% | 197M | 250 |
| 2024 | $6.65 | $8.65 | $5.61 | $7.67 | +15.5% | 167.6M | 252 |
| 2023 | $4.14 | $7.63 | $3.40 | $6.64 | +60.0% | 189.4M | 250 |
| 2022 | $2.94 | $4.81 | $2.38 | $4.15 | +41.2% | 149.1M | 251 |
| 2021 | $1.95 | $4.08 | $1.92 | $2.94 | +53.1% | 180.6M | 252 |
| 2020 | $6.27 | $6.40 | $0.6500 | $1.92 | -69.4% | 312.7M | 253 |
| 2019 | $6.71 | $9.68 | $5.25 | $6.27 | -8.7% | 134.8M | 252 |
| 2018 | $8.70 | $11.65 | $6.39 | $6.87 | -20.1% | 144.6M | 251 |
| 2017 | $7.70 | $10.20 | $6.40 | $8.60 | +14.7% | 166.7M | 251 |
| 2016 | $5.28 | $8.20 | $3.35 | $7.50 | +42.0% | 198.9M | 252 |
| 2015 | $9.46 | $10.85 | $4.77 | $5.28 | -44.7% | 252.5M | 252 |
| 2014 | $12.24 | $13.60 | $8.23 | $9.54 | -22.4% | 187.2M | 252 |
| 2013 | $8.10 | $13.64 | $7.70 | $12.29 | +56.6% | 160.9M | 252 |
| 2012 | $9.83 | $10.62 | $5.19 | $7.85 | -17.4% | 253M | 250 |
| 2011 | $6.23 | $10.09 | $5.19 | $9.50 | +54.2% | 354.7M | 252 |
| 2010 | $4.32 | $9.50 | $3.60 | $6.16 | +45.6% | 300.4M | 252 |
| 2009 | $3.66 | $4.68 | $2.22 | $4.23 | +14.3% | 124.2M | 252 |
| 2008 | $5.45 | $8.92 | $2.97 | $3.70 | -32.1% | 168.1M | 253 |
| 2007 | $7.25 | $8.41 | $4.93 | $5.45 | -24.4% | 146.2M | 251 |
| 2006 | $7.70 | $9.65 | $4.87 | $7.21 | -5.5% | 174.8M | 251 |
| 2005 | $5.12 | $8.99 | $4.72 | $7.63 | +48.2% | 137.2M | 252 |
| 2004 | $4.79 | $6.80 | $4.11 | $5.15 | +7.5% | 72.8M | 252 |
| 2003 | $4.41 | $6.24 | $3.43 | $4.79 | +10.1% | 62.1M | 252 |
| 2002 | $7.98 | $9.12 | $2.88 | $4.35 | -44.9% | 67.8M | 252 |
| 2001 | $9.56 | $13.87 | $5.50 | $7.90 | -17.4% | 91.5M | 248 |
| 2000 | $6.00 | $10.38 | $5.06 | $9.56 | +56.1% | 71.3M | 252 |
| 1999 | $6.75 | $11.44 | $4.88 | $6.13 | -10.1% | 95.9M | 252 |
| 1998 | $17.25 | $25.50 | $5.31 | $6.81 | -61.1% | 115.6M | 252 |
| 1997 | $9.25 | $22.50 | $9.19 | $17.50 | +87.9% | 69.1M | 253 |
| 1996 | $5.56 | $9.75 | $4.91 | $9.31 | +67.4% | 53M | 254 |
| 1995 | $5.71 | $6.19 | $3.51 | $5.56 | -2.7% | 106M | 252 |
| 1994 | $2.08 | $5.95 | $1.96 | $5.71 | +166.7% | 80.6M | 252 |
| 1993 | $2.68 | $2.68 | $1.79 | $2.14 | -20.0% | 42.9M | 253 |
| 1992 | $1.67 | $2.68 | $1.61 | $2.68 | +45.2% | 26.9M | 254 |
| 1991 | $1.07 | $2.74 | $0.7143 | $1.85 | +72.2% | 21.9M | 253 |
| 1990 | $1.37 | $1.55 | $1.07 | $1.07 | n/a | 223.4K | 81 |
NPKI monthly closes, last 12 months
| Month | Month end close | Change |
|---|---|---|
| September 2026 | $11.58 | -12.8% |
| August 2026 | $13.28 | +6.3% |
| July 2026 | $12.49 | -21.5% |
| June 2026 | $15.91 | +9.6% |
| May 2026 | $14.52 | -11.2% |
| April 2026 | $16.35 | +12.8% |
| March 2026 | $14.49 | +0.4% |
| February 2026 | $14.43 | +4.5% |
| January 2026 | $13.81 | +15.9% |
| December 2025 | $11.92 | -3.2% |
| November 2025 | $12.31 | +0.1% |
| October 2025 | $12.30 | +8.8% |
About the NPKI data
Daily bars. 9,080 sessions from Sep 6, 1990 to Sep 28, 2026, one row per NYSE trading day with open, high, low, close and volume. Prices are adjusted for splits and cash dividends so the series is comparable across its whole length; the API also serves the raw, split only and dividend only views.
Minute bars. Stored from Jul 13, 2026 forward, most recent session Sep 28, 2026. Minute history is captured from the day collection began and is never backfilled, so this start date is exact. Five minute, fifteen minute and hourly bars are derived from these minutes.
Time and currency. Session dates are NYSE trading days; minute timestamps are UTC. Prices are in USD. Volume is shares traded on the session.
Get the data. The REST endpoint returns the daily series as JSON with pagination; a free key serves the last year, Quant and above the full history back to Sep 6, 1990, and minute bars come with the paid windows. It takes timeframe (1Min, 5Min, 15Min, 1Hour, 1Day), adjustment, start and end. See the bars endpoint and authentication, and pricing for the plan windows.
curl "https://api.datacedar.com/v3/stocks/NPKI/bars?timeframe=1Day&adjustment=all&limit=50000" \
-H "X-API-Key: YOUR_KEY"Nearby on NYSE
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Common questions
NPKI share price history
