The 5 Top Penny Stocks This Week

This week's five top penny stocks all have strong momentum as the new year begins, with all five climbing at least 20% last week. One climbed more than 50% last week alone.

Every week, we give readers a penny stock list that tracks the top-performing penny stocks on the market. As a reminder, these lists serve only as a tracking feature. Although many of these stocks frequently post double- and triple-digit gains, this doesn't mean we're recommending them as penny stocks to buy. That's because penny stock investing can be risky, and gains can quickly turn into losses.

However, as a bonus today, we're showing readers how they can access a 90-page guide about investing in an emerging industry that's poised to grow to $35 billion by 2020. This bonus investment guide also includes many worthwhile penny stock investments.

But first, here's our list of the five top penny stocks this week…

Top Penny Stocks No. 5: Dataram Corp.

Dataram Corp. (Nasdaq: DRAM) makes electronic memory and storage products. The company has a line of memory products for well-known brands, like Intel and AMD. DRAM rose nearly 20% last week, but there appears to be no company-caused catalyst behind its rise. The penny stock is currently trading at $1.88 per share and is down 11% as of Jan. 3 year over year (YOY).

Top Penny Stocks No. 4: Cesca Therapeutics

Cesca Therapeutics (Nasdaq: KOOL) is a clinical-stage biotech company that makes cellular therapies and regenerative medicines. KOOL rose 26% last week, but there appears to be no company-caused catalyst behind its rise. The biotech stock is currently trading at $3.19 per share, and is down nearly 11.2% as of Jan. 3 YOY.

Top Penny Stocks No. 3: Cyclacel Pharmaceuticals Inc.

Cyclacel Pharmaceuticals Inc. (Nadsaq: CYCC) is a biopharmaceutical company that works in the fields of hematology and oncology. The company has a pipeline of drug candidates intended to treat cancer and other serious disorders. CYCC was up nearly 30% last week, but it isn't clear what's driving the stock higher. This usually suggests investors are speculating on the stock. As of Tuesday intraday, CYCC is currently trading at $5.17 and is down 13% as of Jan. 3 YOY.

Top Penny Stocks No. 2: Cemtrex Inc.

Cemtrex Inc. (Nasdaq: CETX) makes electronic system assemblies, emission monitors, and other electronic instruments for the manufacturing industry. CETX is up more than 39% last week after the company announced that its net income increased by 76% for fiscal year 2016. CETX is currently trading at $7.64 per share. The stock is up 245% as of Jan. 3 YOY.

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Continue reading to find out this week's No. 1 penny stock, with gains over 50% last week…

Top Penny Stocks No. 1:  Siebert Financial Corp.