The Big Three
The S&P IPSA enters May at 10,908.30 — grinding at the 50-day SMA for the second consecutive session — after Thursday’s +0.46% bounce produced the fifth consecutive hold at the most tested support level of 2026. No trading occurred on Friday (holiday). The IPSA closed April at 10,908 after an eleven-session correction from the CESCO Week high at 11,477 (−4.96%). The 50-SMA at 10,858 has now been tested five times in 2026 without a clean break — the longest support-test sequence of the year. The close at 10,908 sits 50 points above it. The grinding pattern — diminishing bounce magnitude (3.23% → 1.65% → 0.46%) without a breakdown — leaves the market at a fulcrum where the next catalyst decides direction.
GEM Mining Consulting published the first independent economic model of Kast’s mining tax reform — projecting 13.8 million tonnes of incremental copper, 1.3 million tonnes of lithium, US$15.3 billion in additional fiscal revenue, and a 1.06% GDP boost through 2046. The study, authored by Juan Ignacio Guzmán and Patricio Faúndez and published April 27, converts Kast’s megareform from a political proposal into a quantified investment thesis. The 13.8Mt copper figure is the anchor: it represents the additional output Chile produces if the corporate tax cut (27%→23%), the 25-year invariability guarantee, and the permitting acceleration are enacted. Without the reform, Chile risks losing these projects to Argentina, where the RIGI regime already offers similar incentives. Mining.com confirmed separately that projects “not under construction by 2028 risk missing peak pricing” during the Wood Mackenzie-projected 6–7M tonne annual deficit. The GEM study provides the institutional modelling that Morgan Stanley’s 13,700 target and the 12x P/E thesis require.
The “National Reconstruction and Economic Development Bill” was formally presented to Congress on April 22 — and the legislative timeline is now the IPSA’s most important near-term catalyst alongside the BCCh June meeting. Mining.com confirmed Kast framed the bill as targeting “4% annual GDP growth, unemployment of 6.5%, and a return to structural fiscal balance by 2030.” The corporate tax cut from 27% to 23% by 2029 benefits ~150,000 companies accounting for over half of formal employment and 90% of investment. University of Chile economist Jorge Berríos assessed that the full 100% corporate-to-personal tax integration “will not pass under any circumstances” — but even partial passage would trigger re-rating. The tied Senate and minority coalition remain the legislative bottleneck. Any progress signal from congressional committees in May would be the catalyst that resolves the IPSA’s five-test 50-SMA grind.
01 Market Snapshot
| Indicator | Value | Change |
| S&P IPSA (last close May 1) | 10,908.30 | +0.46% from Apr 30 |
| 50-day SMA (5 tests, 5 holds) | 10,858.18 | close 50 pts above |
| MACD histogram | −47.27 | deepening (lag) |
| RSI signal | 48.55 | approaching 50 |
| Tenkan-sen (resolution level) | 10,999.07 | 91 pts above |
| GEM study: reform copper impact | +13.8M tonnes | through 2046 |
| GEM study: GDP impact | +1.06% | incremental |
| ATH (Jan 28) / Distance | 11,721 / 7.5% | |
| Morgan Stanley target | 13,700 | ~25.6% upside |
02 Equities — May Opens at the Fulcrum
IPSA Chile today enters May at the intersection of the strongest structural case in LatAm and a technical picture that remains unresolved. This Chile stock market report covers the position heading into the month where the BCCh June meeting, the Kast megareform’s congressional debut, and copper demand data converge. The IPSA at 10,908 on the 50-SMA is at the fulcrum — and the GEM study published over the weekend provides the quantitative framework that could tip the balance. This is part of The Rio Times’ daily coverage of Latin American equity markets.
The GEM study’s projections are significant because they are the first independent numbers the market can model. Until now, the megareform’s impact was qualitative (“pro-investment,” “tax cut,” “invariability”). The GEM study converts this into 13.8Mt copper, 1.3Mt lithium, $15.3 billion fiscal revenue, and 1.06% GDP — numbers that institutional analysts can plug into DCF models, mining-sector valuations, and sovereign credit assessments. For the IPSA, the study reinforces the medium-term bull case even as the short-term technical grind persists. A close above the Tenkan at 10,999 would signal that the market is beginning to price the study’s implications.
The legislative reality remains the constraint. University of Chile economist Berríos warns the full tax integration “will not pass.” Political analyst Duval says even a September timeline is “difficult.” Bloomberg flagged fiscal-deficit risks from near-term tax cuts. Kast’s approval at 47% after the fuel-price decree controversy means the megareform is partly a political reset. The tied Senate and the coalition’s Chamber minority mean every provision requires opposition votes. May’s congressional committee activity will reveal whether the reform advances, stalls, or gets split into passable components — and that progress determines whether the GEM study’s projections become investable or remain theoretical.
03 Key Levels
| Level | S&P IPSA |
| ATH (Jan 28) | 11,721 |
| 21-day EMA | 11,048.83 |
| Tenkan-sen (resolution level) | 10,999.07 |
| Last Close | 10,908.30 |
| 50-day SMA (5 tests, 5 holds) | 10,858.18 |
| Cloud top | 10,761.50 |
| Lower BB | 10,720.74 |
04 Looking Ahead
Monday reopens with the GEM study as the weekend’s analytical backdrop. A close above the Tenkan at 10,999 would be the first since April 24 and the clearest buy signal since the correction began — potentially catalyzed by the market pricing the GEM study’s 13.8Mt copper projection. A close below 10,834 (Thursday’s low) would be the deepest 50-SMA test of 2026 and target the cloud top at 10,762. The BCCh June meeting, copper data, and megareform congressional progress are the month’s catalysts.
Key dates: June 2026 — BCCh expected 25bp cut to 4.25%. Kast megareform (27%→23% corporate tax, 25-year invariability) — congressional committee activity in May. GEM study: 13.8Mt copper, 1.3Mt lithium, $15.3B fiscal revenue, +1.06% GDP. Morgan Stanley year-end 2026: 13,700 (~25.6% upside).
05 Verdict
The IPSA enters May on the most tested support level of 2026 with the structural case quantified for the first time. The GEM study’s 13.8Mt copper, 1.3Mt lithium, and 1.06% GDP projections provide the institutional anchor that the megareform needed to convert from political promise to investable thesis. The five-test, five-hold pattern at the 50-SMA (10,858) is either the base for a sustained recovery or the exhaustion phase before a breakdown. The MACD at −47.27 and the RSI signal at 48.55 are on opposite sides of the neutral line — momentum says caution, positioning says the floor holds.
Bias: Cautiously bullish — 50-SMA holds, GEM study deepens the structural case. The IPSA at 10,908 with Morgan Stanley’s 13,700 (25.6% upside), 12x P/E, 14% EPS growth, copper’s structural deficit, BCCh June cut, and now the GEM study’s quantified reform impact is the most compelling equity story in emerging markets at this valuation. The five-test 50-SMA pattern argues for the base. The diminishing bounces argue for caution. The Tenkan at 10,999 is the resolution level — a close above it converts the grind into a recovery. May begins with the strongest fundamental case meeting the most tested technical support. The fulcrum tips when the catalyst arrives.
Related coverage:
GEM study: Chile Tax Reform Could Add 13.8M Tonnes of Copper by 2046
Previous IPSA: IPSA +0.46% as 50-SMA Holds Fifth Test
Copper urgency: Chile Must Act Fast as Argentina Inches Ahead (Mining.com)
Economy guide: Chile Economy 2026: Kast, Copper, and the Path Forward
This report is for informational purposes only and does not constitute investment advice. Always consult a licensed financial advisor. Past performance does not guarantee future results. Published by The Rio Times.