"The overall picture for platinum in 2016, which has enjoyed a significant rebound in price over the course of the first half of the year, continues to be one of constraint and ultimately deficit in 2016," said Paul Wilson, chief executive officer of WPIC, in a press release.
Wilson also warned that there may not be enough platinum held by investors to meet this deficit.
"Not only has the stock level shrunk since 2012 – down more than 50 per cent over the period – but positive sentiment has reduced the propensity of holders to sell platinum to meet deficits," he said.
"We believe it is particularly worthwhile to consider the reduced likelihood of investor sales to meet deficits when considering this investment market in the medium term."
Another factor impacting the supply of platinum, which is in high demand from the jewellery and automotive industries, is the risk of strikes by mine workers in South Africa.
The mine workers' union, the Association of Mineworkers and Construction Union (AMCU), could break off wage talks with mining companies and call strike action, the Nikkei Asian Review reported this week.
"This week, AMCU declared disputes over wage demands with the three largest platinum producers," said Joni Teves, a strategist for UBS, in a note. "We think this declaration increases the likelihood of the strike beyond what market participants are currently pricing in."
Disruptions to platinum production caused by strikes, combined with lower supplies, could push metal prices higher.
"Estimated market shortfalls in recent years suggest that inventories have and are being drawn down," Teves said. "This would mean that there are less metal stocks to draw on if production is disrupted by strikes – in turn, the market could tighten quicker than anticipated, causing a material increase in platinum prices."
However, Teves added that any strike action would be short and have a limited impact on platinum prices.
One other factor affecting platinum prices include the strengthening of the South African rand, which makes platinum more expensive but supports producers and aids sentiment towards the metal.
The dollar has weakened 10 percent against the rand since the start of the year.
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