@samitrading 380 is simply my first target. It’s simply 2x my risk. I calculated my risk on this trade by taking the low of the signal candle minus 1 ATR. That risk would characterize a significant move back beneath the breakout area. 380 is also a reasonable first target, because over last year or two, SPY has liked to range in 20 point increments. If it will go higher, only time will tell. If you want to ride it higher, maybe use a moving average to trail your stop.
wish you the best.