Sept 3 (Reuters) - Tradr ETFs has rolled out a group of

eight leveraged exchange-traded funds (ETFs) designed to allow

investors and speculators to hold on to them for a week or even

a month, the company said on Tuesday.

The move is a bid to shake up the growing universe of

leveraged and inverse ETFs that allow investors to capture up to

three times the return (or loss) of an underlying index or

single stock and have attracted some $117 billion in assets,

according to Morningstar. Until now, those products have offered

users the chance to bet only the daily return of broad market

products like the SPDR S&P 500 ETF Trust or volatile,

heavily traded stocks like Nvidia ( NVDA )

"The reality is that a sizeable percentage of people who own

these actually don't close out their positions at the end of a

trading day," said Matthew Markiewicz, head of product and

capital markets at Tradr.

Hanging on to these leveraged products longer than a single

day can make investors vulnerable to so-called "volatility

drag," a phenomenon that over time can magnify gains or losses

even beyond the leverage the fund provides. That could compound

losses in a down market, as exposure is reset daily.

Tradr has launched six new index-based products offering

twice the daily returns on three major U.S. indexes, including

the S&P 500, half of which will reset weekly and the others on a

monthly basis. It also is introducing two single-stock leveraged

ETFs, one designed to capture 1.75x the weekly return of Nvidia ( NVDA )

and the other to deliver 1.5x the weekly return of Tesla

.

"There's more of an appetite for long, bullish offerings,"

Markiewicz said.

Tradr hopes the new ETFs can emerge as core portfolio

holdings, a role Markiewicz said that the current daily reset

products can't fill.