SNDK Price Forecast: SanDisk Pennant Breakout Fuels Powerful Uptrend

SNDK Extends Leadership with Strong 2026 Performance

SanDisk Corporation (SNDK) is a memory and flash storage company whose stock was a top performer in 2025 and is leading the way in 2026. Demand has been driven by tight supply of NAND flash solutions and the AI-related storage boom. From its low of $27.89 in 2025, SNDK shares surged by 751% as of the year-end closing at $237.38. It has continued to be a leader in 2026, advancing by $245.12 or 103% as of Wednesday’s, January 21, high of $485.22 at time of writing, making it the top performing stock within the S&P 500 Index.

Bull Pennant Breakout Confirms Trend Continuation

Shares of SNDK broke out of a pull pennant (small symmetrical triangle) in mid-December, formed on support near the 50-day moving average. A bull pennant is like a flag trend continuation pattern in that the upside measuring objective following the breakout has the potential to match or be similar in magnitude to the sharp rally that preceded it.

That first advance is called the pole and it begins from when strong bullish momentum is evidenced following a breakout of a 23-week high at $53.23 in early-September. A sharp $231.53 or 435% rally followed to the $284.76 peak in November. Following the pennant breakout at $231 in December, SNDK stock was up as much as $290.55 or 126% as of the current January 21 high.

Momentum Structure Supports Higher Prices

Market leaders tend to stay leaders and that seems to be the case for the stock of SNDK. This puts it on the radar to watch for new entry setups. But given the stock’s trajectory and bullish momentum, more aggressive techniques may be needed. Watch for some degree of consolidation – a few days or more – or wait for strength after a pullback towards, or touch of the rising 10-day moving average, now at $399. For most of the advance that preceded the pennant, SNDK stock held support around the 10-day average. A reclaim of the 10-day line triggered a day before the pennant breakout and the average was touched on the first pullback following the breakout, before momentum accelerated.

Measured Targets Highlight Further Upside Potential

Notice that the first portion of the pole that occurred in September ended following a 107.9% advance before the first pullback. That is very close to the gains seen on a percentage basis since the pennant breakout. A 300% extension of the November bearish correction marks $488.28 as a potential resistance area. That level is followed by a 316.8% extension at $551.17 and a 400% extension at $590. Both the measuring objectives from the pennant have already been surpassed. The target on a dollar basis was $408.49 and $432.72 on a percentage basis.

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