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iShares National Muni Bond ETF vs State Street SPDR S&P 500 ETF Trust

Over the past year MUB returned −3.2% and SPY returned +10.8%; their daily moves had a correlation of 0.29.

MUB −3.2% SPY +10.8%Growth of $1, one year, split-adjusted
MetricMUBSPY
Price$103.95$757.12
Market cap$54.57B$803.25B
Today−0.83%−0.35%
1 month+2.3%−1.6%
6 months−2.5%+1.2%
Year to date−3.0%+11.0%
1 year−3.3%+10.9%
Revenue growth (YoY)——
Gross margin——
Net margin——
P/E (TTM)——
Price / sales——
Net cash——
Dividend yield3.28%1.00%
Volatility (60d)5.8%14.9%
Short % of float——
Next earnings——

Shading marks the stronger figure where one clearly exists (lower is better for valuation and volatility).