DJP vs SERA: Correlation
How closely do iPath Bloomberg Commodity Index Total Return ETN (DJP) and Sera Prognostics, Inc. (SERA) trade together? Their weekly returns over three years give a correlation of -0.23, which is negative.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are DJP and SERA?
Across a 3-year window, the weekly returns of DJP and SERA correlate at -0.23, negative, meaning they tend to move in opposite directions. The past 12 months show a tighter link (-0.10) than the 3-year average (-0.23). Stretching to 5 years gives -0.13, with an annualized covariance of -472.1 %².
By 3-year correlation, SERA places #25 of the 42 assets tracked against DJP. Correlation aside, the last 12 months split them widely, with DJP ahead by 77.7 points (+49.2% versus -28.5%). One caveat on sizing: SERA is 7.7 times as volatile as the other leg, so an equal-dollar split is far from equal-risk.
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.
DJP vs SERA: side by side
| DJP (iPath Bloomberg Commodity Index Total Return ETN) | SERA (Sera Prognostics, Inc.) | |
|---|---|---|
| 1-year return | +49.2% | -28.5% |
| 5-year return | +82.1% | -79.2% |
| Volatility (ann.) | 16.3% | 125.6% |
| Beta vs S&P 500 | 0.11 | 1.29 |
| Max drawdown (3Y) | -16.4% | -87.3% |
| Market cap | – | $0.1B |
| P/E (trailing) | – | – |
| Dividend yield | – | 0.00% |
| Sector / category | US Listed | US Listed |
Year-by-year returns
| Year | DJP | SERA |
|---|---|---|
| 2022 | +17.5% | -81.7% |
| 2023 | -9.8% | +374.6% |
| 2024 | +5.6% | +36.1% |
| 2025 | +17.2% | -63.8% |
| 2026 | +34.7% | -31.2% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are DJP and SERA good diversifiers for each other?
By historical standards, yes. A correlation of -0.23 means the two rarely move for the same reasons.
FAQ
What is the correlation between DJP and SERA?
The DJP/SERA correlation stands at -0.23 on a 3-year window (1 year: -0.10, 5 years: -0.13), computed from weekly returns as of 2026-08-27.
Is SERA a good diversifier for DJP?
By historical standards, yes. A correlation of -0.23 means the two rarely move for the same reasons.
What does a correlation of -0.23 mean?
Correlation ranges from −1 to +1. Values near +1 mean two assets move together, near 0 that they move independently, and negative values that they tend to move in opposite directions. It measures co-movement, not performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/djp-vs-sera.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/djp-vs-sera/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: DJP correlations · SERA correlations
