〔Overnight Brief〕Nickel Lifts LME 2.26% as Shanghai Copper Slides to MA20 on Yields and Middle East Stalemate - Hike Bets Cap the Bid

0. Overnight Arc

LME metals firmed broadly overnight, led by nickel at +2.26% to $17,130.0/t and tin at +1.11% to $55,425.0/t, while lead was the only decliner at -0.05% to $1,886.0/t ^[1]. Yet the tone into the Shanghai session is the opposite: Guotou's desk (chief analyst Xiao Jing, F3047773/Z0014087) flagged SHFE copper cutting positions and sliding to the MA20 daily moving average, with the U.S. tech sector, rising U.S. Treasury yields, and a Middle East stalemate all named as headwinds ^[2]. Hike expectations were tagged as a "phased" pressure on the broader non-ferrous complex ^[2]. Net: an LME bid against a Shanghai curb that is already discounting the macro drag.

1. LME Price Action

• **[NEW] Nickel:** +2.26% to $17,130.0/t, session leader ^[1].
• **[NEW] Tin:** +1.11% to $55,425.0/t ^[1].
• **[NEW] Copper:** +0.46% to $14,051.5/t ^[1].
• **[NEW] Zinc:** +0.57% to $3,714.0/t ^[1].
• **[NEW] Aluminum:** +0.54% to $3,238.0/t ^[1].
• **[NEW] Lead:** -0.05% to $1,886.0/t, the only loser ^[1].

2. Shanghai Copper: Curb Tone Diverges From LME

• **[NEW] Guotou (Xiao Jing, chief analyst):** SHFE copper reduced positions and extended declines to the MA20 daily moving average; market watching the tech sector, rising U.S. Treasury yields, and the Middle East stalemate ^[2]. SMM spot copper at 107,240 yuan/t, Shanghai premium lowered to 395 yuan/t, Guangdong premium at 120 yuan/t; bias is "buy on dips," not chase ^[2].
• **[ESCALATED] Guotou (Aug 18 desk):** LME spot premium held above $400/t but U.S. copper did not print a new high; rollover trading pace was the watch item ^[3]. Shanghai premium was 415 yuan/t post-rollover, Guangdong 170 yuan/t - both have since narrowed by 20 and 50 yuan/t respectively ^[2][3]. Physical premium is the leading indicator of bid depth; treat the convergence as a soft bid, not a tight one.

3. Aluminum: Inventory Draw vs. Rate Cap

• **[NEW] Guotou (Liu Dongbo, senior analyst, F3062795/Z0015311):** SHFE aluminum pulled back; spot premiums at -20 yuan/t (East China), -100 yuan/t (Central China), +95 yuan/t (South China) ^[2].
• **[NEW] Inventory:** Monday social inventory of aluminum ingot down 12,000 tons from Thursday to 886,000 tons - a localized supply tightening ^[2].
• **[ESCALATED] Guotou (Aug 18 desk):** regional premium shape at -20 / -120 / +100 yuan/t ^[3]. Day-over-day: East China unchanged at -20, Central China firmer by 20 yuan/t to -100, South China weaker by 5 yuan/t to +95 ^[2][3]. The Central China firming is the only structural improvement in the regional stack.

4. Source Quality and What Would Falsify the Bid

• The firmest data points are the LME price print ^[1] and the aluminum inventory draw ^[2]; everything else is desk commentary, not market data.
• Three of the six items are GF Futures precious-metals daily headers with no content ^[4][5][6] - treat GF as silent on industrial metals today.
• The desk's preferred setup is "buy on dips" for copper, not chase highs, with the rollover and pre-delivery window flagged as the rhythm to watch ^[2][3].
• Falsifiable test: (i) whether tonight's LME gains survive the Shanghai open; (ii) whether U.S. Treasury yields keep rising; (iii) whether the Middle East stalemate breaks. A clean break in any one would invalidate the curb tone; a clean break in all three would invert the LME/SHFE divergence.