What drove the after-hours spike in 6366.T stock?

The jump followed heavy trading and reports of contract momentum and positioning ahead of Chiyoda’s earnings on 06 Feb 2026, with volume **36,671,600** shares pushing the price to **JPY 1,293.00**.

What is Meyka AI’s rating for 6366.T stock?

Meyka AI rates 6366.T at **75.18** out of 100, grade **B+ (BUY)**, factoring sector comparison, financials, forecasts and analyst signals; this is informational only.

How does valuation look for 6366.T stock after the move?

Valuation is mixed: market cap **JPY 265,881,147,894.00**, PE variants range and PB is **5.96**. Strong margins and interest coverage counterbalance a high price relative to book.

What are the short-term risks to 6366.T stock?

Short-term risks include project delays, cost overruns, and negative surprises at the 06 Feb 2026 earnings. Technical overbought readings (RSI **70.25**) increase pullback risk.

JP Stocks

Chiyoda Corporation (6366.T JPX) up 47.60% after hours 29 Jan 2026: watch JPY 1,293.00 momentum

ByHuzaifa Zahoor January 29, 2026

Chiyoda Corporation (6366.T) jumped 47.60% in after-hours trading on 29 Jan 2026, closing at JPY 1,293.00 on JPX on volume of 36,671,600 shares. The move makes 6366.T stock the most active name in the session as traders reacted to fresh catalysts and heavy repositioning. We review the price drivers, valuation, technical setup, and Meyka AI’s proprietary grade to show where the stock may head into the company’s earnings announcement on 06 Feb 2026.