Regarding Lehman Optoelectronics, I have analyzed several posts last week, and I will look at it again today.
After last week's market plunge, dragging down the stock, then look at the next week's line:

300162 Week K
As shown in the figure, on the weekly chart, the purple line is obviously a strong pressure. The stock price has been oscillating in the box below the line, repeatedly charging and failing repeatedly. In the first week of October, the decline stabilized and reversed, and in the second week, after the huge breakthrough of the gap, the third week was stepped back, and the fourth week was last week, which was the last week, and basically recovered the lost ground. Look at the price column and the change of the volume column: in the second week, the huge amount of Yang broke through to a new high; in the third week, the contraction of the new high and then stepped back, the shrinkage here means that the main force in the front of the huge amount is basically locked; the 4th week, continue to attack, the highest point is close to the highest point of the yin line last week, but the amount can still shrink, the willingness of the main force to flee is not large, and the price column is obviously an upward attack pattern.
Let's take a look at the daily line:
Daily Chart 1
As can be seen, last week was dragged down by the broader market, the stock continued to adjust after pulling out the big sun on Monday, rebounded after the lowest hit the GE trend line on Friday, and closed still standing on the main ascending line. The amount of observation can take on a 3S pattern. The 3-day correction has not had a big positive line on Monday, and it has not made up for the gap, so it is still judged to be a strong adjustment. Take a look at Chip Peak:
Daily
After a division of rights as the starting point, last Friday as the end, you can see that the chips have been almost all concentrated near the main ascending line, with an average of 12.06 yuan. So what are all these chips used for here? Recently, it has been jumping up and down near the main ascending line, what is the main force doing? What do you want to achieve?
I think this answer is left to the real market next week!