The WSJ Dollar Index fell 0.11% for the week ending July 17, 2026, closing at 97.09. That tiny weekly drop hides a wild two weeks. The dollar was pulled in two directions: fighting in the Middle East pushed it up, while cooling US inflation pulled it down.

The dollar index is a measure of the dollar's value compared to a basket of other major currencies. A reading of 97.09 means the dollar is slightly weaker than the week before.

Here is what happened. On July 13, news of renewed fighting between the US and Iran made investors nervous. When people are scared, they buy dollars because the dollar is considered a safe place to park money. That pushed the dollar up. The euro fell 0.26% to $1.1383 and the British pound dropped 0.40% that same day (Reuters). Two days later, new data showed US inflation is cooling. That made investors think the Federal Reserve might lower interest rates, which makes the dollar less attractive to hold. So the dollar gave back some of those gains (Reuters).

Inflation is the rate at which prices rise over time. When inflation cools, it usually means the economy is settling down, and central banks may cut interest rates.

The Middle East conflict is the big backdrop behind all of this. The IMF, an international organization that monitors global economic health, said on July 8 that it expects global growth to drop to 3% in 2026 from 3.5% in 2025, before bouncing back to 3.4% in 2027. The IMF blamed the war for the dip (Reuters). WSJ reporting also noted that Iran has shown little interest in compromise, which keeps markets on edge (WSJ).

Asian currencies have been stuck in the middle of this tug-of-war. The WSJ's July 2 article, headlined "Asian Currencies Consolidate; May Be Weighed by Mideast Tensions," described the standoff. Back in May, Reuters had flagged India, Indonesia, and the Philippines as especially exposed, because these countries import oil and were already seeing money leave their markets (Reuters).

The broader picture is two stories pulling against each other at the same time. The war story pushes the dollar up and hurts Asian countries that buy oil from abroad. The inflation story pushes the dollar down because cooler inflation means the US might cut interest rates. Whichever story is louder in a given week moves the market. The IMF thinks the economic hit from the conflict is temporary, since it expects growth to recover by 2027.

For India, Indonesia, and the Philippines, the squeeze is real. Oil gets more expensive when Mideast tensions rise, and investors tend to pull money out of emerging markets when they feel nervous. Neither side of this tug-of-war has clearly won yet, but the IMF's downgrade and Iran's unwillingness to back down suggest the nervous mood could persist.

There is also a Japan-specific issue. On July 13, the yen slid because of what Reuters called "pension doubts" — concerns about Japan's domestic pension system. That is separate from the Iran-driven move and points to problems inside Japan's own institutions.

So the dollar's 0.11% weekly decline to 97.09 is a small number hiding a bumpy ride. The index ranged from about 96.47 to 97.28 over the two weeks, with most of the movement driven by headlines rather than any lasting trend. On July 13, Iran news sent the dollar up. By July 15, inflation news sent it back down.