The Nikkei share average was on track to post its third weekly gain Friday following a strong start at the beginning of the week, as a robust domestic earnings season came to a close.

The average was on track to make a 2.63% gain this week after trading flat in the morning session.

By the midday recess, the broader Topix had gained 0.24%, putting it on track for a 1.61% gain for the week, which would also be its third week of gains in a row.

After passing on costs to consumers, and enjoying the benefits of the yen’s weakening, Japanese corporations were riding high.

Japanese equities were also being lifted by the rally in US stocks, where the S&P 500 was set to produce its third week in a row of gains.

Nomura Securities strategist Kazuo Kamitani noted that trading remained thin into the weekend, with few risk events upcoming in the next week, and no real drivers of note affecting the day.

He said, “It’s best to think of today’s price action as a continuation of yesterday’s consolidation following the 950-plus yen gain in the Nikkei from the first half of the week.”

The Nikkei saw 131 of its 225 components rise on Friday, as 94 fell.

As crude oil declined, energy companies weakened, driving the Tokyo Stock Exchange’s oil and coal producer index down 0.93%, to see it become the worst performer of the 33 industry groups.

Meanwhile as investors in some of the biggest winners of the earnings season locked in profits, those shares came off their recent highs. Nintendo slide 1.52%, Sony dropped 1.93%, and Toyota inched down 0.52%.

Airlines, meanwhile, resumed their advance after briefly stalling on Thursday on downbeat tourism data. ANA Holdings was up 2.31% while Japan Airlines was up 2.22%.

That helped lift the Air Transport sector to become the best-performing industry sector, as it rallied 2.27%.