Pre-market 21 Mar: 3814.T Alphax Food System JPX ¥159 vol 1.28M: watch ¥100-163

The 3814.T stock jumped to JPY 159.00 in pre-market trade on 21 Mar 2026, driven by a volume surge to 1,281,800 shares (rel vol 2.36). This move follows an open at JPY 101.00 and a previous close of JPY 116.00, signalling aggressive buying into the session. Traders should note the intraday range ¥99.00–¥163.00 and compare it with the 50‑day average ¥256.72 and 200‑day average ¥316.33 when sizing positions.