The rand’s flying start to 2019 may be just the beginning, according to Goldman Sachs Group.

The South African currency is heading for its biggest January gain against the dollar since Bloomberg started compiling the data in 1999. And with expected volatility near an eight-month low, traders are discounting local stumbling blocks in coming months, including a Budget speech, ratings review and election.

The rand has been buoyed by a more dovish Federal Reserve and hopes for a trade deal between the US and China that would ease concerns about global growth. South Africa’s inflation has moderated, growth is set to pick up and the government is taking steps to eradicate corruption, consolidate sovereign debt and support the ailing State-owned electricity company, Eskom Holdings.

“Concerns about Eskom have been weighing on South African assets, so comments from government officials about a plan to stabilise Eskom have been welcomed by rates and also FX markets,” Goldman Sachs strategists led by Zach Pandl said in a report dated January 27. “We remain constructive on the currency and local rates on expectations that the negative output gap and a reform-oriented government will keep the growth/inflation mix favorable.”

The rand has gained 5% against the dollar in January, trailing only Russia’s ruble among emerging-market peers. That’s pared some of last year’s 14% drop, and brought the currency back to levels last seen before the August sell-off across developing nations.

Goldman’s strategists say rand volatility remains a concern, with next month’s annual budget seen as a significant risk factor, along with elections scheduled for May. But one-month implied volatility for the rand versus the dollar is hovering near an eight-month low after dropping more than a percentage point last week, suggesting traders anticipate price swings to narrow over the period including the budget statement.

The premium of options to sell the currency over those to buy them, known as the 25 Delta risk reversal, has narrowed to the lowest since August. The rand weakened 0.3% to 13.6610 per dollar by 3:25 p.m. in Johannesburg on Monday, after last week’s 1.7% gain.