RDDT vs SPYG: Correlation
How closely do Reddit (RDDT) and SPDR Portfolio S&P 500 Growth ETF (SPYG) trade together? Their weekly returns over three years give a correlation of 0.51, which is moderate.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are RDDT and SPYG?
On 3 years of weekly data the RDDT/SPYG correlation comes out at 0.51, moderate. The relationship has been stable: the 1-year correlation (0.56) sits close to the 3-year figure. The 5-year figure is n/a, and annualized covariance runs at 756.3 %².
Within RDDT's tracked universe of 40 assets, SPYG comes in at #9 by 3-year correlation. The last year tells two different stories: SPYG led by 49.5 percentage points, -27.1% for RDDT against +22.4% for SPYG. The rolling one-year correlation stayed in a tight band between 0.42 and 0.58 over the past three years, which points to a structural rather than episodic relationship. Note the risk asymmetry: RDDT runs 4.0 times the annualized volatility of the other leg, so equal-weighting the two is not an equal-risk position.
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.
RDDT vs SPYG: side by side
| RDDT (Reddit) | SPYG (SPDR Portfolio S&P 500 Growth ETF) | |
|---|---|---|
| 1-year return | -27.1% | +22.4% |
| 5-year return | n/a | +85.9% |
| Volatility (ann.) | 75.2% | 18.9% |
| Beta vs S&P 500 | 2.59 | 1.25 |
| Max drawdown (3Y) | -61.4% | -22.1% |
| Market cap | $29.6B | – |
| P/E (trailing) | 36.1 | – |
| Dividend yield | 0.00% | 0.49% |
| Expense ratio | – | 0.04% |
| Assets under management | – | $52.2B |
| Sector / category | Communication Services | ETF · US Style |
SPYG is a Large Growth fund from State Street Investment Management: $52.2B under management, 148 holdings, a 0.04% expense ratio, a 0.49% trailing dividend yield.
Year-by-year returns
| Year | RDDT | SPYG |
|---|---|---|
| 2022 | – | -29.4% |
| 2023 | – | +30.0% |
| 2024 | – | +36.0% |
| 2025 | +40.6% | +22.1% |
| 2026 | -33.0% | +14.5% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are RDDT and SPYG good diversifiers for each other?
Only partially. A correlation of 0.51 means RDDT and SPYG share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
FAQ
What is the correlation between RDDT and SPYG?
As of 2026-08-27, the correlation of weekly returns between RDDT and SPYG is 0.51 over 3 years, 0.56 over 1 year and n/a over 5 years.
Is SPYG a good diversifier for RDDT?
Only partially. A correlation of 0.51 means RDDT and SPYG share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.51 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/rddt-vs-spyg.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/rddt-vs-spyg/)
Free with attribution; caching and terms are described in the API documentation.
Related comparisons
Hubs: RDDT correlations · SPYG correlations
