TIGO heads into the final week of May with a fresh bullish analyst call, fading short interest, and options traders quietly turning more defensive — a mix that captures the stock's shifting narrative after a remarkable year-to-date run.
The most notable development this week is JP Morgan's target upgrade. Analyst Marcelo Santos raised his price objective from $86 to $100 today while maintaining an Overweight rating — the third upward revision from the firm in less than a year and the most aggressive target on the Street. The move pushes his target roughly 24% above the current price of $80.94. The mean analyst target of $81.67 looks conservative by comparison, suggesting the broader analyst community has yet to fully chase the stock's 2026 momentum. The analyst backdrop remains split: HSBC upgraded to Buy in March with an $89 target, while Scotiabank continues to sit at Sector Underperform with a $51.20 target — the clearest bear on the panel and one still well behind where the stock is actually trading.
Short interest tells a far less anxious story than the stock's 43%-plus year-to-date gain might imply. At roughly 1.96% of free float, shorting pressure is genuinely light and has been declining sharply — down about 9.5% on the week and nearly a quarter below peak levels seen in early May, when shorts had pushed above 4.3 million shares. Cost to borrow reflects that ease: at 0.54%, it is among the cheapest borrows in its peer set, barely changed over the past month. Availability is wide at nearly 394% of short interest — meaning there are almost four shares available to lend for every one already borrowed. This is a lending market with no friction whatsoever; the 52-week high availability was 45% utilisation, and the stock is now well below that. There is no squeeze dynamic here.
Options positioning, however, has nudged in a more cautious direction. The put/call ratio of 0.176 is more than two standard deviations above its 20-day average of 0.154 — the highest defensive lean in roughly a month. Context matters: the absolute level is still low (the 52-week high PCR was 0.618, hit back in April when short pressure was also much heavier), so this is a mild hedge rather than a genuine fear trade. It does nonetheless suggest a subset of holders is buying downside protection after the stock's run to its near-term high of $84.88.
The Street's bull case rests on acquisitions — Millicom's expansion into Ecuador and Uruguay via the Telefonica assets, layering onto a network already covering 120 million people and 42 million customers. EPS momentum is exceptional, ranking in the 96th percentile on a 30-day basis and 95th percentile over 90 days. The forward analyst recommendation divergence ranks in the 90th percentile, reflecting a wide dispersion between optimists like JP Morgan and sceptics like Scotiabank. Bears flag the 12.2% capex-to-sales ratio as low for a network-intensive business, and point to new 5G competition from Nubicom in Argentina as an ARPU headwind. The PE has contracted nearly 3.7 points over the past month to 14.95, and EV/EBITDA has tightened to 5.66 — both reflecting the market paying a bit less per unit of earnings as the price has drifted slightly off its highs.
The most recent earnings print, on May 12, delivered a 4.4% single-day gain and a 3.1% five-day gain — a constructive reaction that followed a 6.3% day-one pop from the February print. The next earnings event is pencilled in for July 21. Between now and then, the JP Morgan target revision and whether the remainder of the analyst panel follows Santos toward the triple-digits will be the clearest signal of whether the stock's re-rating has further to run.
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