The world’s biggest pension fund posted a record loss in the first three months of 2020 after the coronavirus pandemic sparked a global equity rout in the period.

Japan’s Government Pension Investment Fund lost 11 per cent, or 17.7 trillion yen (US$164.7 billion), in the three months ended March, it said in Tokyo on Friday. The decline in value was the steepest based on comparable data back to April 2008, reducing the fund’s total assets to 150.63 trillion yen. Foreign stocks were the worst performing investment, followed by domestic equities.

The results come just months after the fund revamped top management and revised its asset allocation to focus more on overseas debt. The loss, which wiped out gains for the fiscal year, may attract political attention as social security remains a major concern for tens of millions of Japan’s retirees.

Overseas bonds were the only major asset to generate a positive quarterly return. The securities gained 0.5 per cent, compared with losses of 0.5 per cent for domestic bonds, 18 per cent for local equities and 22 per cent for foreign stocks. In April, GPIF raised its asset allocation to foreign bonds by 10 percentage points to 25 per cent, while keeping the target for foreign and domestic stocks unchanged at 25 per cent.

Under the new guidance of GPIF President Masataka Miyazono and Chief Investment Officer Eiji Ueda, the fund must navigate a volatile market torn between an ongoing coronavirus pandemic and promises of economic stimulus measures. Fears of a second wave of outbreak are already hampering the global equity markets recovery.

During the January-March quarter, the MSCI All-Country World Index of global stocks slumped 22 per cent and the S&P 500 Index fell 20 per cent, while Topix also dropped 18 per cent. Yields on the 10-year U.S. Treasuries slumped 125 basis points during the same period, while benchmark Japanese government bond yields rose about 3 basis points. The Japanese yen gained 1 per cent against the dollar, and rose almost 3 per cent against the euro.

From April, GPIF set a general target to keep 25 per cent of its basic portfolio in all four asset classes, with the allocation of each allowed to deviate by different ranges. The fund allows domestic equities to deviate from the 25 per cent allocation by 8 percentage points, compared with 7 for stocks abroad. Domestic debt can deviate by 7 percentage points, versus 6 for foreign bonds.