We share weekly commentaries with investors on stocks in our strategies that have appreciated or dropped more than 15% in a day during the course of the week. We hope you find this commentary useful.
|+27%||Shares of Twitter traded up over 27% on Monday after Elon Musk disclosed that he has taken a 9.2% stake in the company and that he shifted his stance from that of a passive investor (13G filing) to an activist investor (13D). Musk is a visionary entrepreneur and an active Twitter user whose appointment to its Board of Directors could benefit the company in unexpected ways. Twitter is a social media platform focused on short-form text.|
|Castle Biosciences (CSTL)|
|-16%||Shares of Castle Biosciences fell roughly 16% on Tuesday after the company announced plans to acquire AltheaDx, a private firm focused on pharmacogenomic (PGx) testing. Since its IPO, ARK’s thesis has hinged on Castle’s focus on and position in the underpenetrated dermatology market. We are concerned that the AltheaDx acquisition veers from Castle’s core competencies and could signal its transition into a diagnostic “roll-up” with an unclear expansion strategy.|
注: 在Castle Biosciences宣布计划收购专注于药物基因组学（PGx）测试的私人公司AltheaDx之后，该公司的股票在周二下跌了大约16%。自上市以来，ARK的论点一直依赖于Castle对未被充分渗透的皮肤病市场的关注和定位。我们担心AltheaDx的收购偏离了Castle的核心竞争力，并可能预示着其过渡到一个扩张战略不明确的诊断 "滚动 "公司。
|-26%||Shares of Velo3D dropped 26% on Wednesday following an SEC filing that disclosed potential supply-chain-related delays in the shipment of two of its printer models. Velo3D is a 3D printing company specializing in support-free powder bed fusion. SpaceX is its largest customer and strategic investor.|