FTLF vs NPKI: Correlation
Measured on weekly returns over the past three years, FitLife Brands, Inc. (FTLF) and NPK International Inc. (NPKI) carry a correlation of 0.36, a moderate link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are FTLF and NPKI?
Across a 3-year window, the weekly returns of FTLF and NPKI correlate at 0.36, moderate. The relationship has been stable: the 1-year correlation (0.27) sits close to the 3-year figure. Stretching to 5 years gives 0.23, with an annualized covariance of 704.7 %².
In FTLF's tracked universe of 13 assets, NPKI sits right near the top at #1. Correlation aside, the last 12 months split them widely, with NPKI ahead by 77.7 points (-46.1% versus +31.6%).
How is this computed?
Pearson correlation on weekly returns: ρ(A,B) = cov(rA, rB) / (σA · σB), over windows of 52, 156 and 260 weeks. Covariance is annualized (×52) and expressed in %². Full definitions on the methodology page.
FTLF vs NPKI: side by side
| FTLF (FitLife Brands, Inc.) | NPKI (NPK International Inc.) | |
|---|---|---|
| 1-year return | -46.1% | +31.6% |
| 5-year return | +67.4% | +429.3% |
| Volatility (ann.) | 47.7% | 41.0% |
| Beta vs S&P 500 | 0.47 | 0.88 |
| Max drawdown (3Y) | -57.2% | -42.1% |
| Market cap | $0.1B | $1.2B |
| P/E (trailing) | 16.3 | 28.8 |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | FTLF | NPKI |
|---|---|---|
| 2022 | -0.3% | +41.2% |
| 2023 | +19.7% | +60.0% |
| 2024 | +70.7% | +15.5% |
| 2025 | -0.2% | +55.4% |
| 2026 | -37.9% | +13.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are FTLF and NPKI good diversifiers for each other?
Reasonably. At 0.36, FTLF and NPKI keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between FTLF and NPKI?
As of 2026-08-27, the correlation of weekly returns between FTLF and NPKI is 0.36 over 3 years, 0.27 over 1 year and 0.23 over 5 years.
Is NPKI a good diversifier for FTLF?
Reasonably. At 0.36, FTLF and NPKI keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.36 mean?
On the −1 to +1 scale, 0.36 describes how much the two returns move together: +1 is lockstep, 0 is independence, negative values mean opposite directions. It says nothing about which performed better.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/ftlf-vs-npki.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/ftlf-vs-npki/)
No key needed, free to use. Full endpoint list in the API documentation.
Related comparisons
Hubs: FTLF correlations · NPKI correlations
