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My SK Hynix and SanDisk Trading Plan

Bitcoin has recently entered another choppy phase, and many people have started returning to the stock market. When it comes to the most eye-catching names, SK Hynix and Samsung Electronics are undoubtedly among them. I am more optimistic about SK Hynix's subsequent price performance. In addition, in the U.S. stock market, I plan to build a position in SanDisk. Today, Little God of Wealth will discuss how to view and trade these two stocks.

I. First, let's look at SK Hynix's trend

South Korean stock SK Hynix underwent adjustments for four consecutive trading days, as the market worried about intensifying HBM competition, continued foreign selling, and a slowdown in the pace of spot memory price increases. On September 16, it surged 4.08% in a single day, closing at 1,759,000 won, driven by the dual catalysts of reports that it was negotiating with Intel to build a plant in the United States and the conclusion of a labor agreement. This ended the four-day losing streak. However, there was a clear divergence in the market structure: South Korean institutions bought heavily that day, while foreign investors and retail investors sold simultaneously. The rebound was driven by domestic institutional support, and the short-term battle between bulls and bears remains intense.

Fundamentally, SK Hynix remains the global HBM leader, with its HBM market share holding at 50% in the second quarter. HBM4 has already entered mass production, capacity expansion will continue in the second half of the year, and HBM4E samples have already been delivered to customers. It has also signed multiyear long-term agreements with leading cloud providers, with capacity deployed according to demand to avoid the risk of short-term oversupply. AI inference scenarios continue to drive demand for server DRAM and enterprise SSDs, and the medium- to long-term fundamental support remains intact. However, short-term pressure is also clear: Samsung's HBM capacity is ramping up rapidly, squeezing industry profit-margin expectations; the memory industry is highly cyclical, and fluctuations in DRAM and NAND spot prices can quickly affect earnings expectations. Together with the Korean won exchange rate, foreign capital flows, and fluctuations in Korea's KOSPI, this means the stock price may fluctuate significantly more than U.S. ADRs.

Key support and resistance levels👉

First short-term support: 1,690,000 won, the previous closing price and the short-term dividing line between strength and weakness in this adjustment. If the price pulls back to this level and stabilizes on shrinking volume, it indicates that the short-term bullish structure remains intact, and dip-buying opportunities can be observed; if it breaks below the level on expanding volume, this rebound will fail and the decline will continue.

Medium-term strong support: 1,620,000 won, an important dense trading area for the chips accumulated during this wave of correction. If the KOSPI or the semiconductor sector undergoes a systemic correction, this level will be the medium-term bulls' defensive bottom line; after an effective break below it, the bullish logic for this rally will need to be reassessed.

First short-term resistance: 1,820,000 won, the upper boundary of the recent trading range and a level where the previous rebound was repeatedly blocked. Only a firm close above 1.82 million won on expanding volume can open up room for a new upward move.

Medium-term strong resistance: 2,100,000–2,180,000 won, the previous range where trapped positions accumulated. There is considerable room between this zone and the current price. A breakout would require major catalysts such as better-than-expected third-quarter results, HBM price increases, or large new orders from overseas giants. The historical year-to-date high is 2,987,000 won, which will be difficult to challenge in the short term.

II. My SK Hynix and SanDisk Trading Plan

✅ SK Hynix Trading Plan

1. Long entry opportunities

Short-term opportunity: If the stock price pulls back to around 1,690,000 won, stops falling on shrinking volume on the candlestick chart, and does not break down on expanding volume, small positions can be built in batches.

2. Profit-taking targets

First profit target: Around 1,820,000 won; reduce the position by half upon reaching it and realize part of the floating profit.

Second profit target: The 2,100,000–2,180,000 won range. Upon reaching the medium-term strong resistance zone, fully close the swing long position to avoid selling pressure from trapped positions at high levels.

3. Stop-loss settings

Short-term trial long: Exit after entry if the price effectively breaks below 1,660,000 won.

Medium-term swing position: Unconditionally stop out if the price effectively breaks below 1,590,000 won, and suspend the bullish view for this round.

✅ SanDisk Trading Plan

After its independent listing, SanDisk is a pure NAND flash memory play. Its core logic is that demand for large-capacity SSDs in AI data centers will drive NAND price increases. However, the NAND industry is more cyclical than HBM, the sustainability of price increases is weaker, and weak consumer flash-memory demand remains a long-term drag.

1. Long entry opportunities: Give priority to waiting for a pullback before building a position and refuse to chase rallies at high levels. If the price stabilizes in the $1,500–$1,510 range after a pullback, build a position in batches; if a deep correction occurs, $1,440 is a key medium-term support level where a second round of buying can be added.

2. Profit-taking targets

First profit target: Around $1,640; reduce the position by half.

Second profit target: $1,740–$1,750, the institutional target range; exit the position in full.

3. Stop-loss settings: For a short-term entry, stop out if the price effectively breaks below $1,480; for a medium-term position, stop out and exit if it effectively breaks below $1,430.

What stocks have you been trading recently? Do you think Little God of Wealth's views have been helpful to you? Let's discuss in the comments!