Shares jumped another 6% in morning trades on Friday. Implied volatility is low, which means favoring debit spreads over credit spreads is a good idea. TRENDING: America's Most Trusted Financial Companies Tesla (TSLA) stock jumped 6% on Thursday, flashing a buy signal and marking a technical breakout. The electric-vehicle maker also was added to the IBD SwingTrader with a price entry of 358.38. The stock is showing signs of accumulation and is above its 21-day exponential moving average in addition to the ...