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iShares Russell Mid-Cap ETF vs State Street SPDR S&P 500 ETF Trust

Over the past year IWR returned +15.1% and SPY returned +10.0%; their daily moves had a correlation of 0.84.

IWR +15.1% SPY +10.0%Growth of $1, one year, split-adjusted
MetricIWRSPY
Price$110.59$749.92
Market cap$58.32B$795.61B
Today−0.14%−0.37%
1 month+1.0%−3.6%
6 months+5.4%+1.6%
Year to date+14.9%+10.0%
1 year+15.9%+11.8%
Revenue growth (YoY)——
Gross margin——
Net margin——
P/E (TTM)——
Price / sales——
Net cash——
Dividend yield1.18%1.01%
Volatility (60d)14.3%14.7%
Short % of float——
Next earnings——

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