Welcome back, readers. Privately held startups are watching their valuations plunge, and a $59 million Miami mansion is now accepting payment in Bitcoin.

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1. Shares of privately held startups have plunged. Leaked secondary-market data seen by Insider shows that the share values of many later-stage pre-IPO companies — including those of Bolt, Cameo, Thrasio, and Udacity — are significantly down, with some dropping as much as 50%.

• $329.5 billion in funding poured into startups last year, with some nabbing valuations that even their founders said were too high — leaving a wide swath of carnage as VC money tightens, inflation rises, and the economy contracts.

• According to one expert, many companies that raised rounds in 2021 are now experiencing a 40 to 60% discount. Software-as-a-service startups have been among the hardest hit, with many valuations chopped in half.

• Tech's industry-wide tailspin comes as Wall Street enters into a summer from hell: a period of extreme volatility and uncertainty that will serve as a pivotal shift for markets.

Leaked data shows how some startups are faring.

In other news:

2. Apple could do away with iPhones' lightning ports. According to Bloomberg, the company is testing iPhones that would instead use USB-C ports, a move that comes amid the European Union's call for a universal port. What the change could mean for iPhone users.

3. How Uber One fell apart. The subscription service was CEO Dara Khosrowshahi's big plan to get the ride-hailing company to profitability. But insiders say infighting and weak leadership dashed his dreams before they even began, and are beginning to wonder: Can he innovate his way to success?

4. What happened inside Apple after Steve Jobs died? In his new book, Wall Street Journal reporter Tripp Mickle follows the paths of the two men who shaped the company's post-Jobs period: Tim Cook and Jony Ive. Read a review of "After Steve: How Apple Became a Trillion-Dollar Company and Lost Its Soul."