Worried about this stock-market selloff? Relief may be coming after the midterms — no matter who wins.

The nine months between Election Day and June 30 have seen the S&P 500 deliver an average return of 15.5% going back to 1950.

<p>The nine months between Election Day and June 30 have seen the S&P 500 deliver an average return of 15.5% going back to 1950.</p>