Tesla had a nice rally from 100 to 300 in an impulsive wave up after an ABC corrective wave from the all time high. Since hitting 300 price has moved down in a corrective wave lower. This move is a wave 2 and could go to 180 ( 76.4% of wave a of 2 + 61.8% retracement of wave 1 ) or even to 150 ( equal legs inside wave 2 + 76.4% retracement of wave 2 ).
Line in the sand for this wave 2 is the 101.81 low, anything below this invalidates this count.
Look for price to move higher in an impulsive wave as wave 3 will start after hitting the wave 2 low. Eventually price will break the trendline from the all time high, move above 300 again and hunt for the all time high.
Alternative count would have price in a wave C instead of wave 3. This would still break 300 but will turn around down before hitting all time highs. This would also mean that price will break the 100 low, or ...more rain ahead...