FLG vs SPY: Correlation
Measured on weekly returns over the past three years, Flagstar Bank, N.A. (FLG) and SPDR S&P 500 ETF Trust (SPY) carry a correlation of 0.23, a weak link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are FLG and SPY?
On 3 years of weekly data the FLG/SPY correlation comes out at 0.23, weak. Recent behaviour matches the longer record: 0.27 over 1 year against 0.23 over 3. The 5-year figure is 0.32, and annualized covariance runs at 175.4 %².
SPY is close to the least connected end of FLG's tracked universe, ranking #7 of 11. Correlation aside, the last 12 months split them widely, with SPY ahead by 15.7 points (+4.9% versus +20.6%). One caveat on sizing: FLG is 3.6 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.
FLG vs SPY: side by side
| FLG (Flagstar Bank, N.A.) | SPY (SPDR S&P 500 ETF Trust) | |
|---|---|---|
| 1-year return | +4.9% | +20.6% |
| 5-year return | -57.2% | +82.4% |
| Volatility (ann.) | 52.0% | 14.5% |
| Beta vs S&P 500 | 0.84 | 1.00 |
| Max drawdown (3Y) | -77.9% | -18.8% |
| Market cap | $5.6B | – |
| P/E (trailing) | 448.3 | – |
| Dividend yield | 0.29% | 1.01% |
| Expense ratio | – | 0.09% |
| Assets under management | – | $795.3B |
| Sector / category | US Listed | ETF · US Large Cap |
SPY is a Large Blend fund from State Street Investment Management: $795.3B under management, 504 holdings, a 0.09% expense ratio, a 1.01% trailing dividend yield.
Year-by-year returns
| Year | FLG | SPY |
|---|---|---|
| 2022 | -24.5% | -18.2% |
| 2023 | +26.9% | +26.2% |
| 2024 | -69.1% | +24.9% |
| 2025 | +35.4% | +17.7% |
| 2026 | +7.0% | +13.7% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are FLG and SPY good diversifiers for each other?
Reasonably. At 0.23, FLG and SPY keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
FAQ
What is the correlation between FLG and SPY?
The FLG/SPY correlation stands at 0.23 on a 3-year window (1 year: 0.27, 5 years: 0.32), computed from weekly returns as of 2026-08-27.
Is SPY a good diversifier for FLG?
Reasonably. At 0.23, FLG and SPY keep a meaningful degree of independence, and combining them has historically reduced portfolio volatility.
What does a correlation of 0.23 mean?
On the −1 to +1 scale, 0.23 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.
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Related comparisons
Hubs: FLG correlations · SPY correlations
