Returns Over 1,200% for This Week's Top Penny Stocks

Investors who jumped in on this week's top penny stocks made profits as high as 1,200%, 676%, and 240% in just a matter of days.

That's what makes penny stock investing so attractive to investors. Adding small-cap stocks like these can transform any portfolio in a short period of time.

While penny stocks that trade "Over-the-Counter" (OTC) can pose risks – illiquid shares, incomplete financial reporting – they are subject to wild price swings. And if you're on the right end of one of those swings, you can make serious money.

Here are this week's top penny stocks, and the massive windfalls they brought shareholders…