Stuart Kirk, a columnist for the Financial Times, recently engaged in a live Q&A session with readers to address their investment questions. In his column, Kirk is known for sharing the performance of his own portfolio, offering a transparent view of his investment successes and failures. This approach, which he calls having 'skin in the game,' provides unique insights for his audience.

Kirk highlights three crucial investment questions he is currently grappling with, which he believes other investors should also consider. The first revolves around personal risk tolerance. He emphasizes the trade-off between returns and volatility, noting that to achieve ambitious goals like doubling assets in eight years or retiring early, investors may need to embrace higher risk, potentially divesting from safer assets like US government bond ETFs.

The second major area of focus is US equities. Kirk admits to making a mistake by selling off his US equity holdings last year due to valuation concerns, a decision he now regrets. Despite past misgivings, he points to a rebound in capital expenditure among large US companies, with the S&P 500's capex-to-sales ratio returning to pre-Covid levels. This resurgence, partly driven by the AI boom in Big Tech, suggests potential for future growth that could also trickle down to mid-cap companies.

Finally, Kirk raises concerns about China, posing the question of whether it could face a period of 'Japanification'—characterized by low growth, a declining population, high debt, and real estate problems. This critical question underscores potential long-term economic challenges for the region. These three areas—risk, US equities, and China's economic future—are presented as essential considerations for investors aiming to optimize their portfolios, especially before year-end.