4h trend is clearly up: strong series of higher highs and higher lows from the January base, and price is now pressing into fresh highs near 460. On the 1h, the recent push reclaimed the 420s, stair-stepped higher, and is now breaking above the prior swing-high zone around 455-460 with expansion. Best swing location is not to chase 459 at the top tick, but to buy a breakout retest into 450-452, which should act as new support if the breakout is real. Stop belongs under 439, back below the breakout shelf and recent 1h support. First target is the next obvious level/round-number magnet near 480. If MU cannot hold above 450 on a pullback, the breakout thesis is wrong.

Call Spread: Bullish continuation with price at/through highs favors defined-risk upside. A vertical call spread reduces premium outlay versus naked calls while still targeting a move into the 480 area over the next 2-3 weeks.

Long Call: For traders wanting more directional exposure, the 460 call lines up with current price and breakout continuation, but it carries higher premium risk and more sensitivity to any failed breakout.