Investments: Formulas To Know

Common Stock

(1)
\begin{equation} Issued Stock - Treasury Stock = Outstanding Stock \end{equation}

Current Yield

(2)
\begin{align} \frac{Annual Interest}{Current Market Price} = Current Yield \end{align}

Covariance

(3)
\begin{align} COV_{ij}= P_{ij}\sigma_i\sigma_j \end{align}

Where:
$\sigma_i$= Standard deviation of Assets "i" returns
$\sigma_j$= Standard deviation of Assets "j" returns
$P_{ij}$= Correlation coefficient for Assets "i" and "j"

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