Silver, the poor man’s gold, is a knight on a quest. Rarely in its history was the metal thought more investment-worthy by retail investors and rarely was it considered more seriously for portfolios, both big and small. The value of silver in the retail market has risen, even as investors have acquired it with the help of exchange-traded funds (ETFs). Indeed, a silent drip-drop became a splashy deluge ever since the regulator allowed silver ETFs to be rolled out.