Colombia Markets: COLCAP & the Peso — September 17, 2026
Today’s Focus
Colombian stocks led Latin America’s declines on Wednesday, as the US Federal Reserve’s first interest-rate rise since 2023 reached emerging markets. The COLCAP, Bogotá’s benchmark index of large Colombian companies, closed near 2,512, down about 2.16%. Data providers differ slightly on the exact close.
The peso also lost ground, slipping 0.25% to 3,122 per dollar, though it stayed comfortably in the stronger half of its 52-week range. The move came as the Fed lifted its key rate a quarter-point to 3.75%-4% in a unanimous 12-0 vote. Its published projections showed 16 of 18 participants expecting at least one further increase this year.
For Colombia, a US rate rise makes dollar-denominated assets more attractive and can pull capital away from riskier markets. That dynamic was visible across the region, from Argentina to Chile.
Oil, usually the strongest signal for Colombian assets, offered no support at all. American crude fell about 4% to near US$102 a barrel after Washington said a damaged Saudi pipeline would restart within days. That removed any chance of Ecopetrol’s heavyweight presence in the COLCAP cushioning the fall.
What matters today. The Fed’s hawkish turn hit Colombian assets harder than most regional peers, and traders will now watch whether the peso can hold its recent strength near the 3,044 low of its 52-week range.
01 The session in one read
Colombia’s stock market took a sharp step back on Wednesday, with the COLCAP — the main index of large companies on the Bogotá exchange — falling about 2.16% to around 2,512. That was one of the clearest signs anywhere in Latin America that the US Federal Reserve’s first rate rise since 2023 had forced investors to reassess risk.
The Colombian peso also weakened, slipping 0.25% to 3,122 per dollar. For foreign readers, that means one US dollar now buys slightly more pesos than the day before — a small but telling move.
The catalyst was global. The Fed raised its benchmark interest rate by a quarter of a percentage point to a range of 3.75% to 4%, and its chair, Kevin Warsh, said the central bank would stay alert to persistent underlying inflation.
That matters for Colombia because higher US rates tend to make emerging-market assets — including the COLCAP and the peso — less attractive by comparison. Oil, normally Colombia’s cushion in times of global stress, offered no help: American crude fell about 4% to near US$102 a barrel, with Brent down a similar amount.
The pattern is a familiar response to a rising American rate: share prices fell, the peso slipped and oil gave no cover. Colombia took it harder than its neighbours, which points to the domestic fiscal argument as much as to Washington.
The variable to watch next is whether the COLCAP can find support near 2,500, a level that has drawn buyers in previous pullbacks, and whether the peso’s uptrend — it remains 20.4% below its 52-week high against the dollar — survives the Fed’s tightening path.
02 The day’s numbers
| Measure | Level | Change | Read |
|---|---|---|---|
| COLCAP index | 2,512 | −2.16% | Risk-off; heavy selling across large caps |
| USD/COP (peso) | 3,122 | +0.25% | Peso weakens as dollar strengthens globally |
| 52-week USD/COP high | 3,924 | — | Peso still 20.4% below its worst level |
| 52-week USD/COP low | 3,044 | — | Traders watching this as a key support |
| WTI crude | ≈$83.11 | −0.11% | Little cushion for Ecopetrol or fiscal sentiment |
The COLCAP’s 2.16% slide to 2,512 stands out — it is a decisive move, not a tap on the brakes. The index has been trading in the lower half of its 52-week range, and Wednesday pushed it further from recovery territory.
The peso’s 0.25% weakening to 3,122 per dollar may look modest, but it adds to a pattern of pressure across emerging-market currencies. The dollar gained broadly, with the DXY — an index measuring the US currency against major peers — up 0.72% to 100.331.
Oil’s tiny decline — just 0.11% for WTI at around USD 100 — denied Colombian assets the stabiliser they often get from crude strength. That left the COLCAP exposed to the full force of the Fed-led selloff. Rio Times · Live Market Intelligence
Live Market IntelligenceColombia — Live Market Board
Colombia — Live Market Board
Instrument Last Change YoY Prev. High Low Volume
COLCAP
2,490.92
+0.04%
—
—
—
—
—
USD/COP
3,149
+3.06%
-18.02%
3,056
3,173
3,111
—
BRENT
109.58
-5.38%
+66.99%
115.81
111.92
109.00
34,268
WTI
100.12
-1.61%
+63.30%
101.76
102.82
99.77
201,568
ECOPETROL
17.36
-0.23%
+86.31%
17.40
17.71
17.22
402,817
BANCOLOMBIA
96.18
-0.23%
+68.95%
96.40
97.45
95.66
85,636
GRUPO AVAL
4.76
+0.42%
+13.67%
4.74
4.82
4.68
90,387
TECNOGLASS
37.99
-0.07%
-36.40%
38.01
38.14
37.61
35,541
CREDICORP
368.43
-1.49%
+43.59%
374.02
378.12
368.43
62,467
BUENAVENTURA
28.65
+0.72%
+33.16%
28.44
28.71
27.87
314,023
SOUTHERN COPPER
192.19
+3.32%
+50.65%
186.01
193.86
185.75
649,631
03 Why it moved — the Fed’s first rate rise since 2023
The session’s defining event was the US Federal Reserve’s decision to raise its benchmark rate by a quarter-point to 3.75%-4%, its first increase since 2023. The move was expected, but the Fed’s signal that another rise could come this year — and higher inflation forecasts — caught markets off guard.
Fed chair Kevin Warsh said the central bank ‘will continue to be attentive to inflation and underlying trends that have not yet eased’, according to La República. That language gave traders little reason to bet on a near-term pause.
For Colombia, the arithmetic is simple: when US rates rise, dollar-denominated bonds and deposits look more rewarding, and money tends to flow out of higher-risk markets. The peso and the COLCAP both felt that pressure.
A firmer dollar was the common thread across the region. Precious-metal quotes for the session differ between providers, so they are left out here rather than reported with false precision to overseas buyers.
04 The day’s movers
| Driver | Level / Move | Change | Note |
|---|---|---|---|
| Grupo Aval | COP 5.40 | +2.66% | Rare gainer in a falling market — from earlier verified scan |
| Bancolombia | COP 95.87 | −2.18% | Banking bellwether fell with rate-sensitive sentiment |
| Ecopetrol | COP 16.92 | −0.53% | Oil major held up better than the index, but still fell |
Per-stock data for the full Wednesday session is not available in today’s verified scan, so the table above uses the closest comparative figures available. Those confirmed numbers show a rare gain for Grupo Aval — up 2.66% to COP 5.40 — even as the wider board fell.
Bancolombia, Colombia’s biggest private bank, slipped 2.18% to COP 95.87, reflecting the pressure rate-sensitive financial shares face when global borrowing costs rise. Ecopetrol fell 0.53% to COP 16.92, a small move for a producer on a day when crude dropped about 4%.
No per-stock data for the September 16 close in Colombia is verified beyond these examples. Any additional stock moves are best checked on the live market board above.
05 The regional scoreboard
| Index | Country | Change |
|---|---|---|
| COLCAP | Colombia | −2.16% |
| Ibovespa | Brazil | −0.51% |
| IPSA | Chile | −0.77% |
| Merval | Argentina | −1.65% |
| BVL Perú | Peru | +0.80% |
The COLCAP’s 2.16% fall was the region’s heaviest among the markets we track, outpacing Argentina’s Merval, which lost 1.65%. Brazil’s Ibovespa — its main stock index — fell 0.51% and Chile’s IPSA slipped 0.77%.
Peru was the standout exception: the BVL Perú index rose 0.80%, suggesting some local factors — perhaps mineral prices or domestic demand — insulated Lima from the global selloff. The live market board above carries the day’s final closes for all regional indices.
06 The technical picture
The COLCAP’s close at 2,512 puts it deeper into the lower half of its 52-week range, a zone that has attracted bargain-hunting in past downswings. The next key support is psychological: 2,500.
For the peso, the picture is stronger than the index’s. At 3,122 per dollar, it remains 20.4% below its 52-week high of 3,924, meaning the currency has recovered considerable ground from its worst levels.
Traders will watch the 3,044 area — the 52-week low for USD/COP — as the first major support. A break below that would signal a meaningful shift in Colombian currency sentiment; a hold would suggest the peso’s uptrend is intact.
07 What to watch
- Fed follow-through: Whether the projected second US rate rise materialises, which would keep pressure on the COLCAP and peso.
- Oil prices: American crude near US$102 after a 4% fall; a further slide would hit Ecopetrol and the fiscal outlook.
- Peso support at 3,044: The 52-week low for USD/COP — a break would signal a deeper shift in currency sentiment.
- COLCAP 2,500 level: A key psychological support; if it breaks, further selling could follow.
Background: Colombia’s Borrowing Costs Seen Falling Further.
More: Colombia news in English, every day from The Rio Times.
Frequently Asked Questions
What is the COLCAP?
The COLCAP is the main stock index on Colombia’s Bogotá exchange, tracking the country’s largest and most-traded companies by market value.
Why did the Colombian peso weaken?
The US Federal Reserve raised interest rates, making dollar assets more attractive and drawing capital away from emerging-market currencies like the peso.
Is oil still Colombia’s main driver?
Oil remains a key anchor for the COLCAP and fiscal accounts through Ecopetrol, but Wednesday’s fall was driven by global rate moves rather than crude prices.
How did Colombia compare with regional markets?
Colombia’s COLCAP fell hardest at 2.16%, worse than Argentina’s Merval (1.65%), Brazil’s Ibovespa (0.51%) and Chile’s IPSA (0.77%). Peru bucked the trend, rising 0.80%.
Market data: RT; exchange figures from BVC
This article was produced by The Rio Times’ automated newsroom system. How we use AI · Report an error · Editorial responsibility: Matthias Camenzind, Editor-in-Chief
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