'Fast Money' Portfolios of the Week

Updated from 6:59 a.m. EDT

The traders of CNBC's "Fast Money" are experts at discovering investment and trading trends that can help viewers find profits in any market. The crew also uses their connections with some of the best traders and fund mangers on Wall Street to find opportunities they might have overlooked.

The gang recently highlighted trading ideas that play off unusual options activity, solar stocks and following legendary investor Warren Buffett. Here are some highlights from over the past week as aggregated from the show.

Fast Money's Unusual Options Activity: Recently, Jon Najarian noticed some unusual options activity in a number of stocks. On Monday's "Fast Money" show, Najarian told viewers, "I'm seeing heavy call buying in Tesoro (TSO Quote). It suggests to me the stock could soon make a big move." Fast Money's Unusual Options Activity includes Motorola (MOT Quote) among others.

Fast Money's Solar Stock Picks: With oil and gas prices showing no signs of falling as the summer driving season begins, solar companies are in the sweet spot. On last Friday's "Final Call" segment, Brian Schaeffer told viewers, "As much as some of the solar names have ramped, many are off their highs -- and some have experienced as much as 50% pullbacks." Fast Money's Solar Stock Picks include SunPower (SPWR Quote) among others.

Fast Money's Follow Warren Buffett Trades: On Monday, Warren Buffett and Mars inked a deal to buy Wm Wrigley (WWY Quote) for $23 billion. The traders highlighted some stocks to play alongside Buffett in. On Tuesday's "Fast Money" show Jeff Macke told viewers, "I think it's not very complicated. The buy is Berkshire Hathaway (BRK.A Quote)." Fast Money's Follow Warren Buffett Trades include American Express (AXP Quote) and Wells Fargo (WFC Quote) among others.