EDUC vs SINT: Correlation
Educational Development Corporation (EDUC) and SiNtx Technologies, Inc. (SINT) show a negative relationship: their 3-year correlation of weekly returns is -0.22.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are EDUC and SINT?
Across a 3-year window, the weekly returns of EDUC and SINT correlate at -0.22, negative, meaning they tend to move in opposite directions. Lately the two have moved closer together, with the 1-year correlation at 0.03 versus -0.22 over 3 years. Stretching to 5 years gives -0.15, with an annualized covariance of -2197.7 %².
SINT is close to the least connected end of EDUC's tracked universe, ranking #11 of 14. Their recent paths diverged sharply: over the last 12 months EDUC outperformed by 85.4 percentage points (+25.9% for EDUC against -59.5% for SINT). Risk is not evenly split, since SINT carries 2.6 times the volatility of the other side.
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.
EDUC vs SINT: side by side
| EDUC (Educational Development Corporation) | SINT (SiNtx Technologies, Inc.) | |
|---|---|---|
| 1-year return | +25.9% | -59.5% |
| 5-year return | -85.6% | -100.0% |
| Volatility (ann.) | 62.4% | 162.0% |
| Beta vs S&P 500 | 0.67 | 2.00 |
| Max drawdown (3Y) | -63.5% | -99.3% |
| Market cap | – | – |
| P/E (trailing) | 5.7 | – |
| Dividend yield | 0.00% | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | EDUC | SINT |
|---|---|---|
| 2022 | -64.6% | -84.9% |
| 2023 | -63.3% | -96.1% |
| 2024 | +42.2% | -95.4% |
| 2025 | -20.0% | +10.3% |
| 2026 | +3.0% | -60.4% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are EDUC and SINT good diversifiers for each other?
By historical standards, yes. A correlation of -0.22 means the two rarely move for the same reasons.
FAQ
What is the correlation between EDUC and SINT?
As of 2026-08-27, the correlation of weekly returns between EDUC and SINT is -0.22 over 3 years, 0.03 over 1 year and -0.15 over 5 years.
Is SINT a good diversifier for EDUC?
By historical standards, yes. A correlation of -0.22 means the two rarely move for the same reasons.
What does a correlation of -0.22 mean?
On the −1 to +1 scale, -0.22 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/educ-vs-sint.json
Markdown for the live badge, attribution link included:
[](https://www.pairbook.io/pair/educ-vs-sint/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: EDUC correlations · SINT correlations
