24H | Storage Chip, Optical Stocks Fall with DRAM Down 6%; SanDisk Down 4%, Corning Down 3%. South Korean-Related ETFs Sink with KORU Down 14%

TigerJul 13, 2026 1:38 AM

View all comments（0）



Storage chip, optical stocks fell in overnight trading. DRAM down nearly 6%; SanDisk down over 4%; Western Digital down over 3%.

Corning down nearly 3%; AAOI, Coherent, Astera Labs, Lumen Technologies, Lumentum down around 2%.

South Korean-related ETFs sank in overnight trading. Direxion Daily MSCI South Korea Bull 3x Shares plunged 13.7%; iShares MSCI South Korea ETF, Franklin FTSE South Korea ETF down over 4%.

Disclaimer: The information provided on this website is for educational and informational purposes only and should not be considered financial or investment advice.

Comments (0)

Click the $ button, enter the symbol, and select to link a stock, ETF, or other ticker.

Commenting Guidelines

Recommended Articles

Meta vs. Google: Which Is the Better Long-Term Investment? A Comprehensive Comparison of META and GOOGL Stocks

TradingKey - Both Meta (META) and Google parent company Alphabet (GOOGL) are core tech giants in global digital advertising and artificial intelligence. Meta primarily leverages AI to improve content recommendations and ad efficiency across Instagram, Facebook, and Reels, while Google commercializes AI through Search, Gemini, YouTube, and Google Cloud. For long-term investors, which of these two companies is the better investment?

Apple Stock Price Forecast: Where Is the Next Target Price After Record High as iPhone 18 Pro Series Demand Heats Up?

Apple (AAPL) stock hit a record high on September 22, Eastern Time, just 10 days after Apple's fall launch event. However, how far this rally can go depends not on the product event, but on the actual demand for the iPhone 18 Pro series. JPMorgan's latest research report provided the first positive signal: the global average delivery wait time for the iPhone 18 Pro extended from 7 days in the first week to 23 days in the second week, with order momentum surpassing that of the iPhone 17 series over the same period last year.

SK Hynix vs. Micron: Which AI Memory Stock, SKHY or MU, Is Better for Long-Term Holding?

TradingKey - Rapidly growing demand from AI servers for high-bandwidth memory (HBM) and data center storage has made both SK Hynix (SKHY) and Micron (MU) direct beneficiaries.

Micron Earnings Preview: Five Key Things Memory Investors Need to Watch

TradingKey - Micron Technology (MU) will report its fourth-quarter fiscal 2026 financial results after the market close on September 30, Eastern Time, and hold an earnings conference call at 16:30 on the same day.

Meta Connect 2026 New Product Roundup: Muse Integrated Into AI Glasses, Can It Drive Meta Revenue Growth?

TradingKey - At the Connect 2026 conference held from September 23 to 24, Meta (META) unveiled the Ray-Ban Meta Audio, third-generation Ray-Ban Meta, and Meta VR Glasses, while upgrading the Meta Ray-Ban Display. The company also announced the integration of its personal AI agent, Muse, into its AI glasses, expanding its product scope from mobile phones and social apps to wearable devices.

Featured Tools