A currency's external value is a direct measure of a nation's purchasing power against the rest of the world. Benchmarked against the other G7 currencies since 2015 — and against its own history back to 2002 — the Canadian dollar has weakened on every front that matters, and has lost the oil-price tailwind that once lifted it.
Related metrics. This is one part of the cost-of-living and living-standards picture. See also:
For most of the 2000s the Canadian dollar behaved as a textbook petro-currency: it rose and fell with the price of oil, Canada's largest export. It climbed past parity with the US dollar during the oil boom of 2007 and again in 2011, and fell hard when oil collapsed. Since roughly 2015 that relationship has broken. Oil-supply shocks that once would have lifted the loonie now pass through it, and the currency trades near the bottom of its post-2014 range — quietly eroding the real value of Canadian incomes and savings.
One Canadian dollar, June 2026
US$0.71
About a third below the US$1.10 it bought at the 2007 oil peak.
CAD vs US dollar since Jan 2015
−17.5%
−13.3% against the euro and −3.7% against the pound over the same span.
Recent oil shocks that rallied the loonie
0 of 5
Reactions a month on ranged just −1.6% to +1.3%; the 2026 Strait of Hormuz closure — disrupting ~20% of world oil — left CAD lower.
From petro-currency to decoupling
The chart traces the Canadian dollar in US dollars from 2002 to today, with the onset of major oil-supply shocks marked. In the shaded petro-currency era, the loonie tracked oil: it broke above US parity during the 2007 oil boom and the 2011 Libya/Arab Spring spike, and crashed with oil in 2008 and again in 2014–16. After 2015 the shocks keep coming — but the currency no longer responds.
Canadian dollar in US dollars, 2002–2026, with oil-supply shocks marked (US$ per 1 CAD; higher = stronger loonie)
Source: European Central Bank euro reference rates, CAD and USD cross, daily, accessed via the Frankfurter API (June 2026). Series shown as semiannual snapshots (early Jan / early Jul) plus daily observations bracketing each marked event. Oil-shock onset dates: Iraq War (Mar 2003), 2008 oil-price peak (Jul 2008), Libya/Arab Spring (Feb 2011), 2014 oil-price collapse (Jun 2014), Abqaiq attack (Sep 2019), Russia–Ukraine invasion (Feb 2022), Hamas attack (Oct 2023), Israel–Iran war (Jun 2025), Strait of Hormuz closure (Feb–Mar 2026).
Measured tightly around each of the five most recent oil-supply shocks, the loonie's reaction bears no resemblance to the petro-currency prediction. A month out it moved only between −1.6% and +1.3% — never the multi-percent rally a sharp, supply-driven oil spike would once have produced — and it was lower after the one episode, the 2026 Strait of Hormuz closure, that physically removed a large share of world supply.
Canadian dollar vs US dollar around recent oil-supply shocks (change ~1 month after onset)
Oil-supply shock
Onset
CAD vs USD, ~1 month
Abqaiq drone attack (Saudi Arabia)
Sep 2019
−0.6%
Russia invades Ukraine
Feb 2022
+1.3% (−1.1% at oil's peak)
Hamas attack on Israel
Oct 2023
+0.2%
Israel–Iran 12-day war
Jun 2025
+0.2% (−1.1% at US strikes)
US/Israel strikes; Strait of Hormuz closed
Feb–Mar 2026
−1.6% (brief +0.7%, then −3.4% by mid-June)
Source: ECB reference rates via Frankfurter. Change measured from the last trading day before onset to roughly one month after; the 2026 row also shows the move to 19 June 2026. A net oil exporter's currency would be expected to appreciate on a supply-driven oil-price spike.
Against every major peer currency
Indexing each currency to January 2015 shows how much purchasing power one Canadian dollar has held against its G7 peers. The loonie has lost ground to the three currencies that dominate Canadian trade and travel — the US dollar, the euro, and the pound. Its only "gain" is against the Japanese yen, which reflects Japan's own deep currency weakness rather than Canadian strength.
Purchasing power of 1 Canadian dollar against G7 currencies (index, January 2015 = 100; below 100 = weaker loonie)
Source: ECB reference rates via Frankfurter (June 2026). Each line is the CAD value of one unit of the foreign currency, re-based to 100 at the first January 2015 observation; semiannual snapshots. Currencies: 🇺🇸 US dollar, 🇪🇺 euro, 🇬🇧 pound sterling, 🇯🇵 Japanese yen.
Findings
Finding 1
The petro-currency link has broken
Through 2014 the loonie rose and fell with oil, twice trading above US parity (US$1.10 in 2007, US$1.05 in 2011). Since 2015 oil-supply shocks no longer lift it — the defining feature of the Canadian dollar for a generation has quietly disappeared.
Finding 2
Five recent oil shocks, no appreciation
Across the Abqaiq attack, Russia's invasion of Ukraine, the Hamas attack, the 2025 Israel–Iran war, and the 2026 Hormuz closure, the loonie's move a month on ranged only from −1.6% to +1.3% — never the multi-percent rally the old relationship would predict. The largest physical disruption of all, the strait actually closing, bought a fleeting +0.7% before sliding to −3.4%.
Finding 3
From above parity to a two-decade low
One Canadian dollar bought US$1.10 in late 2007. By June 2026 it bought about US$0.71 — roughly a third less, and near the weak end of its range over the past decade. Against the euro it is down 13.3% since 2015, against the pound 3.7%.
Finding 4
The weakness is structural — and it costs households
With the oil tailwind gone, the dollar now trades mainly on interest-rate gaps and global risk sentiment, both running against it. A weaker loonie raises the cost of imports, travel, and US-priced goods, eroding the real value of Canadian incomes — the bottom line this pillar measures.
A rising oil price now cuts two ways for the loonie. It modestly improves Canada's terms of trade, but it also spikes global risk aversion and demand for the US dollar as a safe haven — and that US-dollar channel has come to dominate. An oil shock that would once have been a Canadian tailwind is now, on balance, a headwind.
Oil-shock onset dates from contemporaneous reporting and official records (e.g. the 2019 Abqaiq attack, the February 2022 invasion of Ukraine, the October 2023 Hamas attack, the June 2025 Israel–Iran war, and the February–March 2026 US/Israel strikes and Iran's declared closure of the Strait of Hormuz).
Methodology notes
Definitions. "CAD in USD" is the number of US dollars one Canadian dollar buys; higher means a stronger loonie. The G7 index re-bases the CAD value of each foreign currency to 100 at the first January 2015 observation, so a line below 100 means the loonie has weakened against that currency.
Sampling. The long-run line uses semiannual snapshots (early January and early July) to show the multi-year trend, supplemented by daily observations bracketing each marked oil-shock event so the short-term reaction is visible. Event reactions in the table are measured from the last trading day before onset to roughly one month after.
Comparability. The euro line uses the euro itself (not a single member state). The yen line reflects sustained yen weakness over the period, so the loonie's "gain" against it overstates Canadian strength; it is shown for completeness, not as a positive. Exchange rates are driven by many forces beyond oil — notably central-bank rate differentials and global risk sentiment — so the event study tests association, not sole causation.
Companion workbook. The editable series live in Elevating_Currency-Strength_Data.xlsx: the long-run CAD/USD series, the G7 index, and the event-reaction table.
Page last reviewed June 2026 · Data current to June 2026 — the latest ECB reference rates, read 23 June 2026