$$SNDK Single-day plunge of nearly 14%, $42.4 billion trading volume smashes through the 1100 level—can you catch this flash crash?

News original: Reuters instant report: SanDisk (ticker SNDK), a storage chip manufacturer, saw its share price fall sharply after the market close and again at today’s open in a row because its Q4 earnings revenue missed expectations and management lowered future shipment guidance.
Trading logic translation: The earnings shock is the direct trigger. The revenue miss indicates end-market demand (data-center SSDs, consumer electronics storage) is worse than the market had imagined; the cut to shipment guidance is even more deadly, meaning inventory digestion pressure won’t ease for at least two to three quarters. For short-term traders, this drop is a textbook “profit warning + valuation kill” double hit. Note that the 24h swing is over 15%: fast and furious flipping between longs and shorts, with $4,540 million in成交额 implying institutions are picking up shares at lower levels, but more retail investors are chasing highs and getting trapped. The day’s low is 1055, the current price is 1105, and the rebound strength is extremely weak—suggesting selling pressure hasn’t fully released. Technically, there is no clear support below 1100, and the previous consolidation platform is in the 950–1000 area. In terms of action, those with no position are not advised to bottom-fish; trend investors should wait for right-side signals—either for a volume-backed reclaim of 1200, or to reassess at the next earnings season when sentiment hits a low. For spot position holders, if your cost is higher than 1300, it’s recommended to trim on rebounds to below half position, and set a stop loss below 1050, because if that level breaks, the next round of sell pressure could directly hit the 1000 level. Derivatives players may consider buying out-of-the-money put options for hedging, but implied volatility has already surged, option premiums are high, and the cost-performance is mediocre. For short-term traders betting on a rebound, you can only do quick in-and-out entries with small position size in the 1080–1100 range, keeping position size under 2%; if it breaks below 1055, you must leave unconditionally.
Has the news already been priced in? From the chart, the steep drop in the morning has already digested most of the bad news, but institutional rebalancing hasn’t finished yet; if the close can’t stay above 1070 at the end of the day, there’s still a risk of further selloff tomorrow with momentum. Short-term traders should not hold a heavy position to fight the move.