Falling discount rates have pushed Diageo's pension deficit up by almost a quarter to more than £1bn.
This could be a dire year for schemes as last year's losses are compounded in the first quarter and crystallised for the 40% of schemes with triennial valuations in March, warns Pension Corporation.
FTSE350 pension scheme deficits remained "stubbornly high" during January, hovering just above a combined shortfall of £80bn, data from Mercer shows.
IT firm RM has begun a consultation to close its defined benefit scheme to existing members in a bid to limit its exposure to the schemes growing liabilities.
Pension deficits increased more than 50% last year, but widening spreads between corporate bonds and gilts have masked an even greater deterioration in funding positions, argues Hymans Robertson.
Defined benefit scheme deficits stood at £402bn at the end of last year, based on company accounting rules, Xafinity analysis shows.
Defined benefit scheme funding levels have plunged by one-fifth over the past year dragging a further 83 previously fully funded schemes into deficit, data shows.
HMV has reported a scheme deficit of £20.8m amid "significant doubt" over the firm's ability to continue as a going concern.
TUI Travel's pension deficit has climbed above £500m as poor asset performance and changes to actuarial assumptions wiped out savings made by capping benefit accrual.
Consultants have raised questions about pension liability calculations, after bond market jitters drove liabilities to historic highs.