Pine Script是TradingView提供的专属编程语言，旨在帮助交易者创建自定义指标和策略，进行回测和实时分析。作为一种轻量级但功能强大的语言，Pine Script 使用户能够在TradingView平台上实现个性化的技术分析工具。要在TradingView上使用Pine Script，首先需要在图表界面打开“Pine 编辑器”。在编辑器中，用户可以编写脚本并将其应用于图表。脚本可以是指标（如移动平均线、RSI 等）或策略（用于回测交易信号）。
官方文档提供了详细的函数和示例，帮助用户理解和应用各种功能。此外，TradingView拥有一个活跃的社区，用户可以在“公共库”中浏览和使用他人分享的脚本。通过搜索功能，可以找到各种类型的指标和策略，满足不同的交易需求。许多脚本是开源的，用户可以查看其源代码，学习他人的编程思路，并根据自己的需要进行修改和优化。介绍完 Pine Script 的基础功能后，接下来我们将动手实战，编写第一个简单的均线技术指标，并将其应用到K线图中。
indicator("MA #1",overlay=true)short = 20long = 120shortMA = ta.ema(close, short)longMA = ta.ema(close, long)plot(shortMA, color = color.blue)plot(longMA, color = color.orange)这段Pine Script脚本实现了在TradingView的主图（也就是 K 线图）上绘制两条不同周期的指数移动平均线（EMA）。它的作用是帮助交易者观察市场的短期与长期趋势，是很多技术分析中常见的基础工具。首先，脚本通过indicator("MA #1", overlay=true)定义了指标的基本信息。其中"MA #1"是该指标在图表上显示的名称，而overlay=true表示该指标将直接绘制在价格图上，而不是在单独的副图中显示。接下来，脚本定义了两个变量short=20和long=120，分别代表短期和长期均线的周期。周期指的是计算均线时所参考的历史K线数量，比如在日线图中，20就代表20个交易日。之后，使用ta.ema(close, short)和ta.ema(close, long)计算出这两个周期的EMA值，分别赋值给shortMA 和longMA。EMA是一种常用的平滑移动平均方式，相较于简单移动平均（SMA），它对最新的数据更敏感，因此在趋势判断上更及时。最后，通过plot(shortMA, color=color.blue) 和 plot(longMA, color=color.orange) 将两条 EMA 线绘制到图表上，分别使用蓝色和橙色加以区分。这样，交易者在图表中就可以直观地看到短期与长期的价格趋势，有助于进行技术分析、识别趋势方向或寻找潜在的买卖点。
整体而言，这段代码是非常适合初学者的 Pine Script 示例，简洁清晰，同时具备实用性，为后续扩展更多交易逻辑（如信号提示、策略测试等）打下良好基础。
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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.
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