首先和大家简单阐述一下什么是摩尔定律。摩尔定律(Moore's Law)是在1965年由英特尔公司的联合创始人戈登·摩尔提出的观察结果,它预测了半导体集成电路的性能每18到24个月就会翻倍。这一预测在过去几十年中持续成立,使得计算机硬件性能以惊人的速度增长。那么在今年已经开始出现3nm的芯片消息,预计在明年年初将会投入使用,那么对标2020年底的5nm芯片,时间也正好对的上。那么和硬件能力息息相关的AI是不是也会完全遵守摩尔定律呢?这个问题目前来说众说纷纭。比较火热的就是之前OpenAI的 CEO Sam Altman在社交媒体上发布的一段话,AI的摩尔定律将要出现,称全球人工智能运算量每隔18个月翻一番。当然,以个人理性的判断来说,这个具体的数字并不是非常绝对的,因为AI的进步不仅仅只是取决于硬件或者说算力的进步,还是会包括但不限于算法的改进、数据可用性以及计算资源可用性的增加。这些因素都在推动AI的发展,但它们并不受摩尔定律的直接影响。因此,想要描述其AI的进步,可能会考虑的是数据的增长(比如网络数据的指数增长)和算法的改进(比如深度学习等技术的发展)。那么我们由此来简单剖析一下目前的AI训练的情况如何。在前几年,AI的训练还是会花费几天甚至是数周的时间,于是在数十亿的投资之后,各种新兴计算公司接踵而至,包括其中包括Cerebras Systems、Graphcore、Habana Labs以及SambaNova Systems等。此外,Google、Intel、Nvidia等已经建立的公司也进行了类似规模的内部投资。近期新版的MLPerf训练基准测试结果的出炉后,证明了这些投资是很值得的。自从MLPerf基准测试开始以来,AI训练性能的提升“显著超过了摩尔定律”,首先解释下什么是MLPerf。MLPerf是一个行业标准的基准测试,旨在为机器学习(Machine Learning)硬件、软件和服务提供公正、可比较的性能评估。
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If you have ever wondered why a forex pair moves sharply on a single Tuesday afternoon, the answer often sits inside one number: the cash rate.
On 5 May 2026, the Reserve Bank of Australia (RBA) raised its cash rate target by 25 basis points (bps) to 4.35%. The decision unwound much of the easing cycle traders had spent the previous year debating. Markets repriced quickly, and the Australian dollar moved against major peers as traders digested the decision.
When one rate decision changes the market mood
For new traders, decisions like this can feel chaotic.
The chart moves before the headline finishes loading. Spreads widen. Stop levels can be tested in seconds. The financial media then fills with confident takes that often disagree with one another.
This playbook is designed to help you make sense of that chaos. Not by predicting the next move, but by understanding how the cash rate works, how it can ripple through markets, and how to prepare a process before the next decision lands.
Important
This article is general market commentary and education only. It does not constitute personal financial advice. Trading CFDs carries significant risk and may not be suitable for everyone.
Part 01
The 101 explainer
Build a clear, foundational understanding before going anywhere near a setup.
The Basics
What the cash rate is, in plain English
The cash rate is the interest rate that commercial banks charge each other for overnight, unsecured loans. The cash rate target is the level a central bank officially sets to steer that market.
In Australia, the RBA sets the cash rate target to manage inflation and employment. While the names vary, each acts as an anchor for the following equivalents:
United States: Federal Funds Rate
United Kingdom: Bank Rate
Eurozone: Main Refinancing Rate
New Zealand: Official Cash Rate
A simple way to think about it is as the wholesale price of money. When that wholesale price rises, the retail prices linked to it, such as mortgage rates, business loans, savings rates and bond yields, often move higher too. When it falls, borrowing costs across the economy tend to ease.
For traders, this is the macro anchor. It is not just a number on an economic calendar; it influences currencies, indices, commodities, and yield-sensitive stocks.
Where the world's major policy rates sit in May 2026
Headline cash rate equivalents at major central banks, expressed in per cent.
Illustrative
Source. Reserve Bank of Australia, US Federal Reserve, Bank of England, European Central Bank, Bank of Japan and Reserve Bank of New Zealand official statements, figures as at May 2026. Educational illustration.
Why It Matters
Why the cash rate matters more than new traders expect
Central bank decisions are among the most closely watched events on the market calendar. That is because one rate decision can influence several markets at once, from currencies and bond yields to share indices, commodities and the cost of holding leveraged positions overnight.
It affects more than currencies
For CFD traders, this matters for two main reasons. First, leverage can magnify both gains and losses when markets are volatile. Around a central bank decision, price can move quickly, spreads can widen and risk controls become especially important.
It can change holding costs
Second, the swap or holding cost on a CFD position is linked to the underlying cash rate. When rates change, the cost of carrying a position overnight may also change. For example, a pair like AUD/JPY can behave differently when the yield gap between Australia and Japan is wide compared with when it is narrow.
Markets can reprice quickly
New traders often underestimate how fast markets can react. A central bank can shift expectations with one sentence in a statement or press conference.
Markets do not wait for the next quarterly review. They often adjust as soon as the message changes.
Vocabulary
The key terms to know
You do not need to memorise every term in this list. These are the ones that come up most often around cash rate decisions.
Cash rate target
The interest rate level set by a central bank to anchor the economy.
Basis points (bps)
1bp = 0.01%. A 25bps move is a 0.25% change in rates.
Repricing
Markets adjusting expectations instantly after new info.
Hawkish vs Dovish: Hawkish leans toward higher rates (supports currency); Dovish leans toward lower rates (weighs on currency).
Yield Differential: The rate gap between two economies that drives capital flows.
Carry trade
Investing in high-yield via low-yield borrowing.
Risk-on/off
Market mood favouring growth vs safe-havens.
Trimmed Mean
Inflation measure that filters out volatile price swings.
Swap or Rollover:
The overnight interest charge/credit for leveraged positions.
Watch for triple swaps on Wednesdays which account for weekend settlement.
Position Sizing
What a 25 bps move may cost you
Basis points can sound abstract until you connect them to position size. Here is a simplified way to show why a small percentage move can matter for a CFD trader. A standard one-lot position in major FX is 100,000 units of the base currency and a 25 bps shift in the underlying cash rate is 0.25% per year.
The point is not the exact cents. It is that small-sounding percentage changes can compound on leveraged positions held for weeks or months.
Position size
Annual exposure to a 25 bps shift
Approximate daily impact
Standard lot, 100,000 units
About 250 units
About 0.68 units
Mini lot, 10,000 units
About 25 units
About 0.07 units
Micro lot, 1,000 units
About 2.50 units
About 0.01 units
Note. Figures are illustrative and shown in the quote currency of the pair. Educational illustration only.
How it works in real market conditions
A central bank decision is rarely just about the rate change itself. The market reaction is shaped by three layers: the decision, the statement, and any press conference or projections.
On 5 May 2026, the RBA raised the cash rate to 4.35%. While the hike was the headline, the statement and subsequent press conference provided the context that allowed markets to reprice bond yields and currency pairs in real time.
AUD/USD often spikes, fades, then trends after a rate decision
Stylised intraday reaction in the first 90 minutes around a hawkish RBA surprise.
Illustrative
Source. Stylised illustration based on typical post-decision price behaviour. Educational purposes only. Liquidity can shift quickly: In the first 5 to 15 minutes after a decision, spreads can widen and fills can slip. High-frequency systems can digest language faster than humans, and mean reversion is common before a clearer trend emerges.
Market Dynamics
How central banks ripple across assets
Cash rate decisions rarely affect one market in isolation. They trigger a domino effect through currencies, yields, and volatility at varying speeds.
This kind of sector dispersion is not just an equities story. The same monetary tightening can produce sharply different outcomes across consumer segments, business sizes and parts of the wider economy, a dynamic sometimes called a K-shaped economy.
Major FX pairs
AUD/USD, EUR/USD, and JPY crosses respond directly to yield differentials.
Short-end yields
The 2-year government bond often acts as a leading indicator for currency moves.
Stock indices
High rates discount future earnings, weighing heavily on growth and tech names.
Gold & safe havens
Bullion reacts to real yields and the USD; hawkish shifts usually pressure gold prices.
Energy markets
Prices feed into inflation expectations, creating a feedback loop for central bank policy.
Market dispersion
When index components move in opposite directions following a rate change.
A tightening cycle can split the ASX 200
Illustrative
Stylised illustration of sector dispersion through a tightening cycle, with index levels rebased to 100.
Source. Stylised illustration based on typical sector behaviour during tightening cycles. Outcomes vary by cycle. Educational purposes only.
The Beginner Trap
What many new traders miss
Markets react to the gap between expectations and reality. A hike that is fully priced in can lead to a falling currency; a hold with hawkish guidance can trigger a rally. The chart is only one part of the story. The setup may look simple, but the risk rarely is.
"Success in these events comes from understanding what is already priced in, and what would change the view if it does not play out that way."
Common mistakes to avoid
• Trading headlines: The initial print is often misleading. Wait for the second wave (statement/press conference).
• Binary leverage: Volatility hits stops harder. Scale risk down into known event risks.
• Chasing moves: Entering late usually means buying exhaustion. Wait for clear retracements.
• Narrative vs. trade: A clear story doesn't guarantee a setup. Ask: "What is already in the price?"
• Indicator myopia: No single signal captures global flows. Watch yields and cross-asset confirmation.
• No Invalidation: Without a clear "I am wrong" level, traders hold losing positions far too long.
Next Strategic Step
Master the volatility cycle
Understanding how the cash rate moves the market is only half the battle. Learn how to read the "Fear Gauge" to identify when volatility creates high-probability entry points.