The Market You Trade Is Younger Than Most People Think
The foreign exchange market turns over trillions of dollars a day, and it is the closest thing finance has to a genuinely global, round-the-clock market. It is also barely fifty years old in its current form.
Before 1971, most exchange rates simply did not move. There was nothing to trade.
Bretton Woods: Fixed by Agreement
In July 1944, with the Second World War still running, delegates from 44 nations met at a hotel in Bretton Woods, New Hampshire, to design the monetary system that would follow it. The problem they were solving was the interwar period: competitive devaluations, collapsing trade, and currencies nobody trusted.
The answer was a system of fixed pegs anchored to one currency:
- Each member currency was pegged to the US dollar, within a narrow band.
- The dollar was convertible to gold at a fixed $35 per ounce.
- The IMF was created to lend to countries struggling to hold their peg.
The practical effect is the important bit. If you were a French importer paying a US supplier, you were not exposed to a floating rate. The rate was policy. Central banks intervened to hold the band, and adjustments happened rarely, by negotiation, and made the front pages when they did.
There was no retail forex market because there was no meaningful price movement to speculate on.
Why It Broke
The system had a flaw economists had spotted early, usually called the Triffin dilemma. The world needed dollars to grow — for trade, for reserves — so the US had to supply them. But the more dollars circulated abroad, the less credible the promise to redeem every one of them for gold at $35.
By the late 1960s the arithmetic had become obvious. US spending on the Vietnam War and domestic programmes expanded the dollar supply while its gold reserves did not expand with it. Foreign governments, correctly reading the gap, began converting dollars into gold.
It was a bank run, conducted by nation states.
15 August 1971
President Richard Nixon appeared on American television on a Sunday evening and announced, among other measures, that the United States would suspend the convertibility of the dollar into gold.
It was presented as temporary. It was not. The suspension severed the last formal link between major currencies and a physical commodity, and within about two years the attempt to rebuild fixed parities had been abandoned. By 1973 the major currencies were floating: their value set by supply and demand rather than by decree.
That is the moment the modern forex market begins. Exchange rates became prices, prices move, and anything that moves can be traded, hedged and speculated on.
What Actually Moves a Floating Currency
Once a rate floats, it stops being an administered number and starts being an argument about a country's prospects. In practice a handful of forces do most of the work:
- Interest rates and central bank policy. Capital chases yield. When a central bank raises rates, or is expected to, its currency usually strengthens — and expectation matters more than the event, because the market prices it in advance.
- Inflation. Persistently higher inflation erodes purchasing power and tends to weaken a currency over time.
- Trade and current account balances. A country importing far more than it exports is, in effect, a persistent seller of its own currency.
- Risk appetite. In a crisis, money moves toward currencies perceived as safe — historically the dollar, the yen and the Swiss franc — regardless of their economics that week.
- Politics and credibility. Markets price the probability that a government does something unexpected to its own money.
Every one of those is a reason a rate moves. None of them is a reason a rate is *predictable*, which is the distinction that separates understanding forex from trading it profitably.
Who Is Actually On The Other Side
A retail trader looking at a EUR/USD chart is looking at the residue of an enormous amount of activity that has nothing to do with speculation. It helps to know who is in the market and why, because it explains why the price does things no chart pattern predicts.
- Banks. The interbank market is the core. Large banks quote prices to each other and to clients, and warehouse the resulting risk. This is where the reference prices come from.
- Corporates. A manufacturer paid in dollars but paying wages in euros must convert, every month, regardless of the rate. This flow is price-insensitive and relentless.
- Asset managers and pension funds. Buying foreign assets means buying foreign currency, and hedging that exposure back is a routine, scheduled operation at enormous size.
- Central banks. Managing reserves, and occasionally intervening deliberately — the subject of both other articles in this series.
- Speculators. Hedge funds, proprietary firms, and retail. The most visible participants and, by volume, far from the largest.
The practical consequence: a lot of order flow is driven by obligation rather than opinion. Month-end and quarter-end rebalancing, option expiries and central bank fixings all move rates for reasons that no amount of technical analysis will reveal, because they are not forecasts. They are somebody's operational requirement.
Why It Is Quoted in Pairs
A currency has no absolute value. It only has a value against something else, which is why every forex quote is a pair.
In EUR/USD, the euro is the base currency and the dollar the quote currency. The number tells you how many dollars one euro buys. If EUR/USD rises, the euro strengthened, the dollar weakened, or both moved in the same direction by different amounts — the price alone cannot tell you which.
This is why traders watch dollar-index style measures alongside individual pairs. A pair moving does not tell you which side did the moving.
Why This History Still Matters to a Retail Account
Two reasons, both practical.
Floating means gapping. A rate held inside a band by an intervening central bank is, by design, orderly. A floating rate has no such promise. It can move further in a minute than it usually does in a year, and when a peg *is* abandoned mid-life, the adjustment is violent — as the Swiss franc demonstrated in 2015.
Central banks are participants, not referees. They can intervene, and sometimes they lose. That is the subject of the day the Bank of England was forced out of the ERM.
If you are choosing where to hold an account before any of that matters, start with what FCA regulation actually means — the regulatory framework is downstream of exactly this history.
Capital at risk. CFDs and leveraged forex are complex instruments and a majority of retail accounts lose money trading them. This is general information, not financial advice.