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Futures: Dow down 0.12%, S&P 500 up 0.08%, Nasdaq up 0.18%

May 22 (Reuters) - U.S. stock index futures steadied on

Thursday after a fall in the previous session, when Treasury

yields surged, as investors worried President Donald Trump's tax

and spending bill could sharply inflate the country's debt

burden.

If passed, the legislation that Trump nicknamed "one big

beautiful bill" will add $3.8 trillion to the $36.2 trillion

U.S. debt pile over the next decade, according to the

nonpartisan Congressional Budget Office.

The House of Representatives voted roughly along party lines

on Thursday during a debate that will lead to a vote on passage

later in the morning.

"The growing mountain of U.S. debt is causing ripples of

worry across financial markets, with signs investors are

baulking at financing the Trump administration," said Susannah

Streeter, head of money and markets at Hargreaves Lansdown.

At 05:13 a.m. ET, Dow E-minis were down 49 points,

or 0.12%, S&P 500 E-minis were up 4.5 points, or 0.08%,

and Nasdaq 100 E-minis were up 37.5 points, or 0.18%.

All three main stock indexes saw their biggest single-day

percentage drops in a month on Wednesday, as Treasury yields

spiked on worries about mounting U.S. debt.

Longer-dated Treasury yields eased a touch, coming off their

multi-month highs on Thursday. Those on the 10-year benchmark

fell 2 basis points to 4.57%.

Most megacap and growth stocks inched higher in premarket

trading, with Google-parent Alphabet leading with a

1.3% rise.

Cryptocurrency and blockchain-related stocks jumped as

bitcoin, the world's biggest cryptocurrency, climbed to a

record high.

Exchange operator Coinbase advanced 2.5%, bitcoin

stockpiler Strategy gained 1.4% and crypto miners

including MARA Holdings ( MARA ) added 4%.

Snowflake jumped 10.2% after the cloud computing

firm raised its fiscal 2026 product revenue forecast.

U.S. stocks have had a solid month so far, with the S&P 500

climbing more than 15% from its April lows, when Trump's

reciprocal tariffs rattled global markets.

A pause in tariffs, a temporary U.S.-China trade truce and

tame inflation data have pushed equities higher, although the

S&P 500 is still about 3% off its record highs.

At least two Federal Reserve officials including New York

Fed President John Williams are slated to speak later in the

day.

Weekly jobless claims data and preliminary numbers of the

May Purchasing Managers' Index are also scheduled to be

released.

Among stocks, shares of solar energy companies including

First Solar ( FSLR ) dropped 3.4% as Trump's tax-cut bill is

expected to end a number of green-energy subsidies.

Insurer UnitedHealth ( UNH ) extended losses after a nearly

6% drop in the last session and was down 1.8%.

Earnings season is winding down, with more than 90% of S&P

500 companies having reported numbers. Analog Devices ( ADI ) is

due to report results before the bell and Nvidia is slated to

report next week.