Warren Buffett Calls Up His 91-Year-Old 'Good Looking' Little Sister Every Sunday Using A Landline Phone — And She's Got The Best Cane Story

Warren Buffett may be one of the greatest investors of all time, but when it comes to family, he's just a big brother with a landline. In the recently released 2024 letter to Berkshire Hathaway BRK BRK.B)) shareholders, Buffett gave a heartfelt shoutout to his 91-year-old sister, Bertie, sharing their Sunday phone call tradition and their rather unexpected debate topic: the relative merits of their canes.

"My wise and good-looking sister, Bertie, of whom I wrote last year, will be attending the meeting along with two of her daughters, both good-looking as well. Observers all agree that the genes producing this dazzling result flow down only the female side of the family. (Sob.)," Buffett wrote, slipping in his usual dry humor.

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He went on to explain their weekly calls, saying, "We cover the joys of old age and discuss such exciting topics as the relative merits of our canes." Buffett, now using a cane himself, admitted his main reason was "to avoid falling flat on my face." But Bertie, ever the pragmatist, claimed her cane offered an unexpected benefit: "When a woman uses a cane, men quit ‘hitting' on her."

Buffett, always one to question a theory, wasn't entirely convinced. "Presently, I have no data to counter her assertion. But I have suspicions," he quipped. "At the meeting, I can't see much from the stage, and I would appreciate it if attendees would keep an eye on Bertie. Let me know if the cane is really doing its job. My bet is that she will be surrounded by males."

For those familiar with "Gone With the Wind," Buffett even threw in a pop culture reference: "For those of a certain age, the scene will bring back memories of Scarlett O'Hara and her horde of male admirers."

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Not the First Time He's Talked About Bertie

Buffett has never been shy about his admiration for his younger sister. In last year's  letter to shareholders, he gave an even deeper look into her personality and smarts.

"Bertie understands the power—for good or bad—of incentives, the weaknesses of humans, the ‘tells' that can be recognized when observing human behavior," Buffett wrote. 

While their Sunday calls may be filled with cane talk now, Buffett's respect for his sister goes beyond just family ties—he sees her as a sharp observer of human nature and, in his own words, "nobody's fool."

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Bertie's Emotional Response: ‘I Feel So Lucky That He's My Big Brother'

After reading the shareholders letter, Bertie admitted she was in tears. In an interview with CNBC's Becky Quick, she got emotional recalling the moment.

"I cried, that's what I think," she said. "Yeah, but I'm going to try not to cry right now. It was so sweet."

Bertie, who has always been in Buffett's life, reflected on their unique bond:

"He's the closest person to me in the world because he's been in my world forever," she said. "And he's been with me my whole life and still is. There aren't many of us in our generation left now, so that even makes it more special. But even without that, you know, he's the one that has always been there… He's my big brother."

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People often ask her about him, naturally. "I know he's this tycoon and stuff, and I sort of know that in my head, but that has nothing to do with my reality." She called him a "wonderful big brother," adding, "I love him and I feel so lucky that he's my big brother."

She also acknowledged Buffett's influence on her investment strategy, admitting she once tried trading stocks herself before realizing her brother might be a little better at it.

"I figured out that Warren was better at it than I was," she laughed.

While Buffett is known for his unmatched financial wisdom, his letters to shareholders also reveal his softer, more personal side. And as much as he enjoys discussing markets and investments, it's clear that nothing beats his Sunday calls with Bertie—or their ongoing cane analysis.

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