* Dollar hit a 3-1/2 month high on Tuesday
* ETF holdings down 10 percent since mid-2016
* Platinum near December lows (Recasts, adds comment, changes dateline from Bengaluru)
By Pratima Desai
LONDON, May 2 (Reuters) - Gold steadied on Wednesday near 4-month lows as the dollar's uptrend paused, but prices of the precious metal are expected to remain under pressure from a significantly stronger U.S. currency and weak investment demand.
Spot gold XAU= was up 0.4 percent at $1,309.34 an ounce at 1302 GMT. It touched $1,301.51 on Tuesday, its lowest since Dec. 29. U.S. gold futures GCcv1 rose 0.2 percent to $1,309.9 an ounce.
The U.S. currency hit a 3-1/2 month high on Tuesday. Its gains makes gold priced in dollars more expensive for holders of other currencies, which could potentially subdue demand; a relationship used by funds to generate buy and sell signals from numerical models. FRX/
"The dollar's rebound has put pressure on gold and that is likely to persist," said Julius Baer analyst Carsten Menke.
"The other problem is a lack of investment demand, which is surprising given the headwinds to global trade from protectionism. You can see it in the physically backed gold products, a primary indicator of safe-haven demand."
At around 28 million ounces, holdings of the largest gold-backed exchange-traded-fund (ETF), New York's SPDR Gold Trust GLD , are down more than 10 percent since the middle of 2016.
Protectionism is a reference to U.S. plans to levy taxes on aluminium and steel imports, which could mean retaliation from places such as China and the European Union.
"Rising inflation expectations, an overall bullish commodity trend (late-cycle preference for commodities), geopolitical and financial risks are being offset by a rising dollar and rising real-rates," Saxo Bank analysts said in a note.
Investors often use gold as a hedge against inflation, which erodes wealth. Higher interest rates make gold, which earns nothing and costs money to store and insure, unattractive.
The U.S. Federal Reserve concludes a two-day meeting on Wednesday. It is likely to keep interest rates steady, but encourage expectations of higher rates in June. The Fed is due to announce its decision at 1800 GMT. the technical front, support kicks in around $1,305 where the 200-day moving average sits and resistance at $1,321 near the 100-day moving average.
Elsewhere spot silver XAG= rose 1.4 percent to $16.34 per ounce and palladium XPD= climbed 0.7 percent to $955.
Platinum XPT= was up 0.6 percent at $895 an ounce after hitting $888.50 on Tuesday, its lowest since December.
Platinum is used in autocatalysts, mainly for diesel cars, where demand has been sliding after the Volkswagen VOWG_p.DE emissions scandal.
"Sales of diesel cars in Europe's five biggest markets - Germany, UK, France, Italy and Spain - accounted for 37 percent of the total in April," Menke said. "This is down eight percentage points year-on-year." (Editing by Mark Potter)