"We've seen the STI (Straits Times Index) hit new highs, we've seen the S&P 500 move up to new highs. So all these now indicate that we've got a breakout and I think it's going to be another 10-15%, and potentially even 25% upside," Hamid said on CNBC Asia Pacific's Protect Your Wealth.
"Get in now!" he advised investors who missed out on the March lows. "What I think investors should not do is wait for such confirmation (of an economic recovery) because when it comes, we'll probably be at the tail-end of this particular rally."
Hamid added that this could be the last rally before we reach a plateau, whereby markets would then move sideways for an extended period of time.
"We are bullish on Singapore, we like China overall in the long run," he revealed, but warned of a potential pullback in China due to its strong run-up since November.
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Catch "Protect Your Wealth" on CNBC's Asia Pacific network every Tuesday on "CNBC's Cash Flow," Wednesday on "Asia Squawk Box" and Thursday on "Capital Connection."