Core Viewpoint - OpenDoor's stock price experienced a dramatic surge, rising from under $1 to a peak of $4.97 within six trading days, indicating extreme volatility and investor interest in low-priced stocks [1][3]. Group 1: Stock Performance - From July 14 to July 21, OpenDoor's stock price increased by over 500% [5]. - On July 21, the stock saw a trading volume of 1.9 billion shares, leading to trading halts due to volatility [1]. - The stock price fluctuated significantly, with a 121% intraday increase and subsequent drops, showcasing high volatility [1]. Group 2: Market Context - The recent surge in OpenDoor's stock has drawn comparisons to the "retail investor battle against Wall Street" and the 1999 internet bubble [3]. - A notable increase in call option trading for OpenDoor was observed, with over 2 million contracts traded on July 21, marking the third-highest daily volume for individual stocks this year [3]. - The broader market has seen a rise in trading activity for low-priced stocks, with low-priced stocks accounting for over 47% of total trading volume, the highest recorded level [4]. Group 3: Company Overview - OpenDoor operates as an online real estate buying and selling platform, leveraging software and data science to enhance the transaction experience for buyers and sellers [3]. - The company's primary revenue model is based on the "buy-sell spread," and it has not reported any profitable fiscal year since its merger with a special purpose acquisition company in 2020 [3].