〔Overnight Brief〕Peso Carry Unwind Hits ~6% as Banks Cut Forecasts; Korea Pledges $120B for 8 US Reactors, Colombia Surprises 25bp Hike to 12.25% - Inflation Tests Bond Havens

0. Overnight Arc

The Mexican peso's ~6% monthly slide has overtaken every other major currency after the Fed hiked and Banxico stood pat, with SocGen, Morgan Stanley, and Banco Base cutting year-end forecasts as the 'carry party ends' ^[1]. That EM stress sits alongside a fragile euro-area setup — German inflation at a near 3-year high ^[2], Meloni's push for budget flexibility ^[3], and Lagarde's 'credible budget path' warning for France ^[4] — and a busy Asian tape: Korea's $120B / 8-reactor US package ^[5][6], a 25bp Colombia surprise to 12.25% ^[7], and Japan's looming 3,153-item food price wave ^[8]. The arc is one of carry unwinds on one side, fiscal-inflation tension on the other, with the BoJ opinion summary the first Asian test ^[9].

1. Latin America — Peso Collapse and Colombia Hike

• **[NEW] Peso worst major currency, down ~6% on the month** ^[1]. Trigger: Fed hike plus Banxico hold narrowed the carry differential, and SocGen, Morgan Stanley, and Banco Base trimmed year-end forecasts ^[1]. One strategist: 'the carry party is over' and the peso's 'carry story is losing its appeal' ^[1]. Source quality flag: the lead is a single Gelonghui wire, not yet echoed by US desks ^[1].
• **[NEW] Colombia +25bp to 12.25%** ^[7]. A 25bp move from 12.00% — the regional hiking push against still-elevated core prices continues, and the print lands ahead of the peso slide as a reminder that Latam is not moving as a single block ^[1][7].
• **[NEW] Index inclusion:** S&P DJ plans to add Peru and Kazakhstan to the iBoxx sovereign government index ^[10][11] — a marginal but real demand positive for two EM frontier curves.

2. Euro Area — Inflation Highs, Budget Fights

• **[NEW] Germany inflation at near 3-year high in September** ^[2]. Source flagged as Xinhua wire, not the Destatis release — print the direction, not a point estimate ^[2].
• **[ESCALATED] Italy — PM Meloni** wants EU to grant member states 'additional flexibility' on budget rules to absorb energy-driven inflation ^[3]. A direct challenge to the Stability Pact with energy costs still elevated.
• **[NEW] ECB's Lagarde:** France needs a 'credible budget path and reforms' to restore market confidence ^[4]. Two sentences, but they land as the ECB publicly siding with the bond market on French fiscal risk.

3. Asia — Korea's US Investment, Japan's Price Wave

• **[NEW] Korea–US package** ^{[12][13][14][5][15][16][17][18][19][20][6]}: 15% tariff cap maintained ^[12]; 50-50 profit split on US investments until Korea recoups principal ^[13]; $120B for 8 US nuclear reactors, 2 of which will use Korea's APR-1400 design ^[5][18][6]; a Westinghouse equity stake is being pursued ^[19]; a Texas gas plant to deliver 6.47GW, commercial operations targeted from 2029 ^[20]; a legally binding $20B annual investment cap ^[15]; Alaska LNG pipeline and export terminal under joint review ^[16]; specific reactor projects 'not yet decided' ^[17]; the Alaska LNG project proceeds only on 'commercial and legal conditions' ^[14].
• **[NEW] Japan October price wave** ^[8]: Teikoku Databank survey flags 3,153 food/beverage items set to rise (alcohol/beverages 1,399; seasonings 820; processed foods 668) ^[8]. The 10 major power companies and 4 city-gas utilities will raise household rates from October after government subsidies expired in September, with electricity to hit a record high ^[8]. Tokyo Disney tickets, Japan Post parcel fees, and the capital expressway tolls also rise ^[8].
• **[ONGOING] BoJ opinion summary due 07:50 Tokyo** Thursday ^[9].
• **[ONGOING] Pakistan — Ministry of Finance expects September CPI at 10-11%**, with stickiness on the horizon ^[21].
• **[NEW] India** cut the diesel export windfall tax from INR 20/L to INR 16/L and the ATF tax from INR 15/L to INR 10.5/L, effective October 1 ^[22]. Mild reflationary positive for domestic refiners.

4. Thursday Calendar (Asia / London open)

• **07:50 JST — BoJ opinion summary** ^[9].
• **14:00 BST — UK Nationwide house prices (Sep)** ^[9].
• **14:30 BST — Swiss Sep CPI m/m, Aug real retail sales y/y** ^[9].
• **15:50–16:30 BST — Eurozone, Germany, France, UK manufacturing PMIs (final)** ^[9].
• **16:00 BST — BoE Governor Bailey speaks** ^[9].
• **17:00 BST — Eurozone Aug unemployment** ^[9].
• **21:30 CEST — ECB's Lagarde** ^[9].
• Fed speaker stack Thursday: Bostic, Collins, Schmid at 20:05 BST; Waller at 21:00 BST; Vice Chair Jefferson 00:30 BST next day; Governor Bowman 02:00 BST; Williams 02:30 BST ^[9].

5. What Would Falsify the Arc

• **Peso:** the slide accelerates if Banxico turns more dovish than the Fed or if a Mexican fiscal headline reopens the risk premium; the SocGen/Morgan Stanley/Banco Base base case is that the carry differential is now structurally narrower ^[1].
• **Euro area:** the tension pivots on whether EU finance ministers grant Meloni's flexibility ask at the next Ecofin ^[3] and whether the French budget draft clears a market test after Lagarde's framing ^[4].
• **Korea package:** the $120B is contingent on 'commercial and legal conditions' for Alaska LNG ^[14] and on Westinghouse-equity terms ^[19]; the headline can stall on either before any reactor construction starts ^[17].
• **Source control:** the peso lead is single-source Gelonghui ^[1]; the German inflation print is Xinhua wire, not Destatis ^[2]; both should be quoted as direction, not precision.