Buffett’s simple investment strategy faces market test after recent drop

Recently, this strategy has been scrutinized as the S&P 500 experienced a 4.4% decline on Thursday, closing at $733.00. The index is now 5.6% below its October 6th record of $779.09.

Consider Gary, 66, and Linda, 63, a retired couple with $2,000,000 invested – $1,400,000 in an IRA, $450,000 in a taxable account, and $150,000 in a Roth. They spend $120,000 annually, receiving $4,500 monthly in Social Security ($3,400 for Gary and $1,100 for Linda), and withdrawing $66,000 from savings. Gary questioned the safety of a 90/10 stock-to-bond split, a concern shared by many nearing retirement.

The key isn’t the stock allocation itself, but the size of the bond reserve. For Gary and Linda, the $200,000 in bonds represents approximately 3 years of withdrawals. While this covered previous market downturns, it would have fallen short during the 2007-2009 financial crisis. A reserve of about $358,050, or roughly 18% of their savings, would have provided adequate protection across all three crashes.

With a 90/10 split, $1,800,000 would be in the stock fund and $200,000 in bonds. Thursday’s drop erased approximately $79,365 from the stock portion, leaving $1,720,635. The slide from the October record totals about $101,195, but their bond reserve covers their annual spending, allowing them to avoid selling stocks at a loss.

Buffett’s bond allocation serves as a spending reserve, enabling retirees to weather market downturns without selling their index fund at its lowest point. For Gary and Linda, a 3-year reserve seemed sufficient, but a longer wait could necessitate a more conservative approach.

Here’s a breakdown of past market downturns and the adequacy of their bond reserve:

* **2020 (COVID):** A 34.1% drop ($613,800 loss) recovered in 5.9 months. The $200,000 bond reserve easily covered withdrawals. * **2022:** A 25.4% drop ($457,200 loss) took 24.5 months to recover. The reserve was sufficient, leaving $65,250 remaining. * **2007-2009:** A 56.5% drop ($1,017,000 loss) took 65.1 months (5.4 years) to recover. The $200,000 reserve fell short by $158,050.

Individuals can adapt Buffett’s strategy by calculating their own withdrawal rate and desired reserve period. For example, a more conservative 82/18 split would allocate about $358,050 to bonds, providing a 5.4-year reserve. A more aggressive 70/30 split, with $600,000 in bonds, would offer a 9.1-year reserve and potentially reduce losses during market downturns.

To determine the appropriate bond share, calculate the gap between annual spending and guaranteed income, divide that gap by total savings to find the withdrawal rate, and then multiply the gap by the desired reserve period (in months) and divide by 12 to determine the required bond allocation. This approach, combined with periodic adjustments to the stock fund based on market conditions, can help retirees navigate market volatility and achieve long-term financial security.