An auto and truck parks player that insiders are loading up in here is Westport Innovations ( WPRT), a provider of engine and fuel system technologies utilizing gaseous fuels. This stock hasn't done much so far in 2012, with shares virtually flat on the year. Westport Innovations has a market cap of $1.84 billion and an enterprise value of $1.59 billion. This stock trades at a rich valuation, with a price-to-sales of 5.84 and a price-to-book of 4.32. Its estimated growth rate for this year is -0.80%, and for next year it's pegged at 43.3%. This is a cash-rich company, since the total cash position on its balance sheet is $333.33 million, and its total debt is $88.33 million. A beneficial owner just bought 100,000 shares, or around $3.69 million worth of stock, at $36.62 per share. From a technical perspective, WPRT is currently trading above both its 50-day and 200-day moving averages, which is bullish. This stock was recently destroyed by the bears, after it plunged from its March high of $50.19 to a low of $21.93 a share. During that massive downtrend, shares of WPRT consistently made lower highs and lower lows, which is bearish technical price action. >>6 Sucker Stocks to Avoid at All Costs That said, WPRT just formed a double-bottom chart pattern at around $22.33 to $21.93 a share. The stock has now soared to a recent high of $38.50 a share but subsequently pulled back right to its 200-day moving average of $33.32 a share. If you're bullish on WPRT, then I would look for long-biased trades once this stock breaks out above some near-term overhead resistance at $38.50 to $38.66 a share with high-volume. Look for volume on that move that registers near or above its three-month average action of 2.5 million shares. If we get that action soon, then WPRT could make a run at $45 to $50 a share. Keep in mind you could get long WPRT as long as it's trending above its 200-day moving average of $33.22 and simply anticipate that breakout. I would avoid WPRT or look for short-baized trades if it drops back below its 200-day moving average of $33.32 a share with high-volume. A high-volume move below that level could set this stock up to re-test and possibly take out its 50-day moving average of $29.35 a share. Any high-volume move below its 50-day and then some previous support at $28 could send this stock dramatically lower.