A New Playbook for Women Investors: Her Portfolio Manifesto Launches

Finance books aren’t often described as manifestos. But then again, most finance books aren’t written to flip an entire system.

This week in New York, Australian strategist and author Megan Lane launched Her Portfolio Manifesto—a book that blends psychology, behavioural science, and investing into a new discipline she calls Sovereign Financial Intelligence (SFI).

The pitch is simple but provocative: women already outperform men as investors under the same conditions, and with the right tools, that advantage could be amplified—delivering not only better outcomes for households, but a global financial uplift worth hundreds of billions each year.

The Big Idea

Lane argues that traditional finance has been designed as a “male-coded language”—charts, ratios, and jargon that prize aggression over discernment. What’s been overlooked, she says, are qualities like emotional regulation, intuitive timing, and long-range vision.

“Women don’t need softer advice,” she told the Herald. “They need strategy that recognises how their nervous systems respond under stress, how they move through different seasons of capacity, and how they naturally make decisions. That’s not fluff. That’s science.”

Her Portfolio positions SFI as a corrective—bringing together Nobel laureate Daniel Kahneman’s Prospect Theory, Stephen Porges’ Polyvagal Theory, and Barbara Fredrickson’s research into positive emotions. Lane also draws on Carl Jung’s archetypal theories, framing “archetypal investing” as a way for women to map their natural decision-making patterns and align them with appropriate financial strategies.

The Science Endorsed

Lane’s work has caught the attention of leading somatic psychologists. Dr Pat Ogden, founder of the Sensorimotor Psychotherapy Institute and a pioneer in trauma and nervous system research, called the project “a very interesting project that promises some fascinating insights.” Lane describes Ogden’s work as a cornerstone in showing how trauma, dysregulation, and freeze states affect financial behaviour in ways that traditional risk profiling misses.

The Numbers

The data backing the manifesto is striking. A Fidelity study found women earn, on average, 40 basis points more per year than men when investing—an edge that compounds into significant wealth over time.

Applied to the $93 trillion in global wealth controlled by women, that 0.4% advantage would represent $372 billion in additional value annually. Lane argues that formalising SFI could multiply that figure further, particularly in volatile markets where emotional intelligence steadies decision-making.

The Global Signal

While the launch was in New York, Lane says early traction is coming from surprising places. Pre-orders and online engagement have been strong in Vietnam, the Philippines, and Nepal—countries where women are increasingly taking charge of household wealth as middle classes expand.

“These are markets hungry for practical, science-backed tools,” she says. “If women in these regions build on their natural investment strengths, the ripple effect won’t just lift families—it will lift economies.”

The Stakes

Economists and policymakers are beginning to take notice of the argument that scaling women’s investing advantages is not just about fairness—it’s about stability. Extra compounding returns, less panic selling, and more values-aligned strategies could all make markets more resilient in the long run.

The Critics

Sceptics may dismiss SFI as too soft, but Lane anticipates the pushback. A chapter in the book titled Sceptics Welcome invites readers to test the framework against their own intelligence rather than take it on faith.

“Every major shift starts with a manifesto,” UK investor and Dragons’ Den star Deborah Meaden says in the book. “If this one lands, it could do for investing what Susan Cain’s Quiet did for introverts—give legitimacy to strengths that were always there.”

What’s Next

Lane is already working to expand Sovereign Strategy™ into workshops, coaching, and professional accreditation. She says the book is only the first step: “This is about returning intelligence to the investment floor—intelligence that’s been ignored for far too long.”

Whether the finance industry takes it seriously remains to be seen. But as wealth transfers accelerate and women continue to prove their edge, Her Portfolio Manifesto may have arrived right on time.

Disclaimer: This article is a cultural and business feature. Her Portfolio Manifesto is not a substitute for licensed financial advice. Readers should seek professional guidance for their individual circumstances.