Anything's possible. First to 250 or 150 first.
250 seems more likely to me, MUCH more likely at this point in time than 150. OK, as per my chart reading.
But as lows are concerned, I'd say 170-ish is the more realistic low target, not 150 9which i find unrealistic based on TA, other than it is indeed a nice round number.
The 170-ish also borders the -20% they brainwashed us into believing is Bear territory.
The actual low target is much lower than 150, nothing that a panic selloff "2008 stile" can't do.
Now in regard to what comes first, the up-target or the low-target, I would not dare even a guess.
But looking at the odds I'd have to stick with the odds , so if QE is in place then 250 first, with occasional corrections.
My biggest fear is a vertical selloff ala 2000 style, a massive flash-crash, which they'll likely say they saw it coming and is because XYZ, and having the big guys AGAIN loading from the lows while AGAIN scarring us we're in a Bear market.