Three primary factors have driven up Cerulli’s most recent projections. First is a basic adjustment for inflation: Earlier projections of $84 trillion (in 2020 dollars) become $100 trillion when restated in 2023 terms. Second is the asset price explosion of the pandemic: Equities grew 27%, and real estate surged 39% from 2020 to 2023, and the total U.S. household wealth leapt from $108 trillion to $154 trillion during that span. (The report notes that American wealth has grown tremendously over a longer timeframe, since the Great Financial Crisis, with the mark standing at $79 trillion in 2011.)

Finally, older households control an ever greater percentage of national wealth, leaving them more to pass down. They held 61% as of 2023, compared to 54% just three years earlier. This lines up somewhat with wealthy households—those with a net worth over $10 million. These wealthiest households, about 3 million in total, now hold 44% of all wealth, up from 40% in 2020, and up a remarkable 11% from 33% in 2011. Cerulli calculates that this is the the top 2% of wealthiest Americans.

Baby Boomers and older Americans still command America’s largest asset pool, and they will be responsible for the largest handoff, sending $79 trillion to younger generations and philanthropies. This will begin with “horizontal” wealth transfers—wives outliving husbands, siblings, and other peer relationships—before most assets move intergenerationally to children and grandchildren.

Gen X, long overshadowed by the enormous Boomer cohort and the much-discussed They are projected to inherit nearly $1.4 trillion per year over the next decade, more than any other group. This windfall comes at a pivotal life stage: many Gen Xers are “sandwiched” between caring for children and aging parents. Cerulli projects millennials getting $8 billion per year over the next decade. Over the next quarter-century, millennials will get the biggest haul: $45.6 trillion to Gen X’s $39 trillion.

This will represent a change, windfall even, for the Gen X generation, whose financial experience has been marked by volatility. They lost 38% of their median net worth between 2007 and 2010—a much steeper loss than any other generation—making them understandably anxious and pragmatic about their financial future. Their rapid transition into inheritors is shifting advisory industry focus dramatically.

The next wave: Women’s wealth and millennial and Gen Z affluence

Millennials, despite delayed life milestones and entry into the workforce during the Great Recession, are set to inherit $46 trillion, more than any other demographic, by 2048. With better access to retirement plans and digital investment platforms, Millennials and Gen Z show different preferences—favoring self-direction, technology, and investing in a values-based direction (e.g., ESG and impact).

One of the report’s most striking findings concerns women as wealth holders. Women are due to inherit much of the coming fortune. Widows from the Boomer cohort are expected to receive $40 trillion in “horizontal” transfers—over 28 million women will become chief asset managers in their families as they outlive their spouses. The average inter-spousal transfer is $1.4 million.

Younger women, meanwhile, will inherit $47 trillion over the next 24 years, moving the conversation from male-dominated wealth planning to a new era of female control and financial decision-making.

The changing face of affluence

Wealth managers are bracing for a big change, Cerulli writes. Out of the clients of premier financial advisors today, 45% are entrepreneurs, business owners, and corporate executives, 24% are inheritors or have multigenerational family ties, and just 21% are the type of “traditional” savers and high-performing professionals such as lawyers and doctors. The share of Millennial and Gen Z clients at HNW-focused firms grew from just 8% in 2021 to 25% by 2024, an indicator of the fast-approaching generational transition.

For this story, Fortune used generative AI to help with an initial draft. An editor verified the accuracy of the information before publishing.