Rising risk of concentrated holdings at high levels; pullback opportunities in LITE, COHR, NBIS, and CRWV

1.$Lumentum (LITE.US)$ Let's look at LITE's after-hours trading: Lumentum dropped nearly 3%, with the price returning to around $945.If intraday trading continues to be affected by broader index adjustments today,I believethe $900–$880 range remains a solid entry point for the first pullback position,if the stock price enters this zone, consider initiating the first tranche of your position. Similarly,do not fully allocate your position,because ifthe Middle East situation continues to deteriorate, or if the entire tech sector experiences deeper profit-taking,a second pullback is entirely possible.If such a scenario actually occurs,for the second tranche, we canwait for the price to approach $800.。

2. Another key stock in the optical module sector is $Coherent (COHR.US)$ COHR. If you observe its performance over the past five trading days, you will notice that COHR's share price has actuallybeen consolidating in a narrow range between $320 and $360.rather thanThere is some short-term resistance at $360.If you previouslyfollowed my suggestion to establish positions on a pullback to the $330–$310 range,there is no need to rush to add more positions after the market opens today.Simply maintain your core position as usual.，for those who completely missed the move,For those holding the stock, you can continue to wait for the share priceto adjust within the $310–$320 range,which may present a comfortable first pullback entry opportunity for COHR.

3.$AXT Inc (AXTI.US)$ As for AXTI, although it rose more than 15% again yesterday with very strong performance,its biggest issue now is very similar to AOI's:a relatively small market cap and excessive stock price volatility. Such stocks rise very quickly,Once market sentiment shifts, the speed of correction should not be underestimated.Therefore, forFor those still holding AXTI positions at lower levels,friends may continue to hold,ensuring profit protection;however, forFor those who completely missed the rally,investors, I would actuallyadvise against chasing AXTI further,especially given the looming catalyst of the Middle East situation,it is unnecessary to compromise your risk-reward ratio in pursuit of short-term elasticity.。

Finally, let's take a look at the data center sector.

4. $NEBIUS (NBIS.US)$ Yesterday, NBIS surged to near $280,but due to late-session indexadjustments, there was a clearsecondary sell-off,however, from the overalltechnical structure perspective,NBIS currentlymaintains a relatively intact bullish pattern.The real issue now is that the short-term rise has been too rapid, leading to excessive profit-taking, compounded by changes in the Middle East situation,and the technicals themselves show some need for correction.If you remain bullish on the continued commercialization of AI and see growth potential for data centers over the next few quarters,the $245–$255 range can serve as an aggressive initial entry point for building a position in NBIS.However, given NBIS's high volatility,the initial tranche must not be heavy;if the market undergoes a second correction later, we will still have room to lower our average cost basis.
Another core ticker in the data center sector is $CoreWeave (CRWV.US)$ CRWV.

Currently, compared to NBIS, I believe CRWV'sbiggest advantage is its more comfortable, relatively lower price level;its year-to-date gain has not been as exaggerated as that of NBIS.Current valuations and stock prices do not show any significant divergence.，If you are looking to participate in relatively stable targets within the data center sector, it may be worth waiting patiently for CRWV. $95 could serve as a solid initial entry point for scaling into positions following a market correction.If you can enter at this price level, the upside target could be viewed at $120–$130.

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