Investors and traders alike always seem to be on the lookout for new speculative investment ideas that can generate massive long-term or short-term gains. While investors get to see many Buy ratings and some Sell ratings, it is not usual for investors to hear from analysts that stocks could rise 40%, 50% or even 100% when the media has said over and over than anything over 8% is great return for equities in a year.

Investors also are finding themselves wondering what to do now that the S&P 500 and the Dow Jones Industrial Average keep hitting new record highs. 24/7 Wall St. has gone through literally hundreds of recent research calls from May and the end of April to find the speculative hidden gems in independent research and in Wall Street research that are calling for expected returns way above market.

Analysts are saying that these stocks could rise by 40%, 50% or even 100%. Our list of 13 fresh analyst stock picks calling for upside of 40% to 100% includes the following: Advanced Micro Devices Inc. (NYSE: AMD), Alliance One International Inc. (NYSE: AOI), Atlas Air Worldwide Holdings Inc. (NASDAQ: AAWW), Boulder Brands Inc. (NASDAQ: BDBD), Carbonite Inc. (NASDAQ: CARB), Chimerix, Inc. (NASDAQ: CMRX), Corning Inc. (NYSE: GLW), Gulfport Energy Corp. (NASDAQ: GPOR), Keryx Biopharmaceuticals Inc. (NASDAQ: KERX), LifeLock, Inc. (NYSE: LOCK), Oasis Petroleum Inc. (NYSE: OAS), Pure Cycle Corp. (NASDAQ: PCYO) and Swift Energy Co. (NYSE: SFY).

We have added color or shown how these calls compare to the consensus price targets from Thomson Reuters to keep things in perspective.

Advanced Micro Devices Inc. (NYSE: AMD) has been on a run, and the stock is threatening to break out of a long-term trading range. Wells Fargo recently maintained its $5 to $7 price range and its Outperform rating when it was talking up the lagging processor designer’s price changes. This still implies that AMD could double in price under the best case scenario from around $3.60 now. This may sound crazy to us, and maybe even to you, but AMD’s 52-week high is $7.32, even if the consensus price target is only about $2.85 here.

Alliance One International Inc. (NYSE: AOI) was just featured in a list of small caps from Deutsche Bank to buy. It provides cigarette manufacturers with the leaf tobacco to make their products. Its consensus price target is $6, which represents implied upside of more than 60% from the current share price around $3.70.

Atlas Air Worldwide Holdings Inc. (NASDAQ: AAWW) rose more than 5% at the start of the week to $44 because Barron’s gave it a writeup showing that it could rise 60% from recent prices. The report showed that cutbacks in military-cargo flights and international deliveries have hurt Atlas Air but its upgraded fleet and more growth elsewhere would drive the value and interest. Barron’s quoted a BB&T Capital Markets analyst calling for $60 on the stock, although it is barely above the consensus price target of $58.44, and one analyst still has an official target price much higher.