Shanghai, Jan 19, 2026, 04:01 GMT+8 — Premarket
China Construction Bank Corporation’s A-shares fell 0.08 yuan, or 0.9%, settling at 8.95 yuan on Friday. The stock has dropped roughly 1.2% over the last five trading days. The major state-owned lender faces Monday’s session amid new policy changes set to take effect that day. 1
Leverage stands out as the crucial short-term variable. China’s securities regulator vowed stricter controls following announcements from exchanges that minimum margin requirements for new loans will jump to 100% from 80%, starting Monday. The move targets a market that’s been heating up rapidly. 2
The move comes as Beijing looks to keep credit flowing. The People’s Bank of China announced it will cut rates on its “structural” policy tools by 25 basis points starting Monday, while expanding quotas linked to tech innovation and loans for smaller firms. The bank said the cut is “aimed at boosting support to major strategic areas and weak links in the economy.” Tianchen Xu, senior economist at the Economist Intelligence Unit, added: “it probably won’t take very long to see a full policy rate cut.” 3
Mainland stocks closed last week lower. The Shanghai Composite dropped roughly 0.3% to 4,102 on Friday, as investors stayed wary ahead of the upcoming rule change. 4
Other major state lenders edged lower heading into the weekend. ICBC A-shares closed at 7.61 yuan, down 0.9%, while Agricultural Bank of China dropped 1.6% to finish at 7.21 yuan. 5
For banks, the path of rates is just as crucial as the actual level. While lower policy rates may nudge loan demand higher, they also squeeze the net interest margin — the difference between what banks make on loans and what they pay out on deposits.
Margin tightening adds a different layer of strain. When collateral demands rise, leveraged buying can slow sharply, causing some of the recent trading activity that’s supported big-cap stocks to vanish quickly—even if banks aren’t directly targeted.
But the policy mix cuts both ways. A wider easing cycle might ease the burden on borrowers, yet it could also reignite concerns over banks’ earnings. Stricter market oversight threatens to trigger a sharper selloff in crowded trades, dragging down sentiment more broadly.
Tuesday brings the next major event: the loan prime rate fixing, a key monthly benchmark steering most bank loans in China. The central bank sets this rate at 9:15 a.m. local time on the 20th each month. 6
