The 5 Top Penny Stocks This Week

top penny stocks 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.

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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.

Don't Miss: How Small Investors Can Take on Wall Street... and Win

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.

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Siebert Financial Corp. (Nasdaq: SIEB) is a bank holding company that operates through its subsidiary, Muriel Siebert & Co. Inc. The company offers trading, fund exchange, competitive money funds, extended hours trading, and other investing services. SIEB rose more than 50% last week. Investors appear to be speculating about a planned acquisition between Kennedy Cabot Acquisition and Siebert. Under the deal, Kennedy Cabot would buy 677,283 shares of Siebert for $0.01 per share. SIEB is currently trading at $2.90 per share and is up 120% as of Jan. 3 YOY.

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