Technical Indicators Explained: MA, RSI, and MACD for Crypto Traders
Indicators look at the past. They don't predict the future — but combined with support, resistance, and trend, they become genuinely useful.
TL;DR
- Indicators only show what has already happened — never use one in isolation
- Moving averages (MA 50, MA 200) filter out noise to show the underlying trend
- RSI measures whether an asset is overbought (>70) or oversold (<30)
- MACD measures momentum — whether a trend is accelerating or slowing down
- A strong signal requires multiple indicators pointing in the same direction
Before Anything Else
Indicators look at the past. They don't predict the future. A single indicator generates a lot of false signals — it only shows what happened, not what will happen.
Combined with support/resistance levels and trend direction (covered in the trading basics guide), they become much more reliable.
Moving Averages (MA)
A moving average smooths out the price over a given period to filter noise and reveal the underlying trend.
It calculates the average of the last X prices. Example on 5 days:
- Monday: $2,000
- Tuesday: $2,200
- Wednesday: $1,900
- Thursday: $2,100
- Friday: $2,300
(2000 + 2200 + 1900 + 2100 + 2300) ÷ 5 = $2,100
Instead of prices zigzagging in every direction, you see a line reflecting the general direction. On a chart, it appears as a line that follows the price without the sharp swings.
The Two Main MAs
- MA 50 = average of the last 50 candles → short/medium-term trend
- MA 200 = average of the last 200 candles → long-term trend
How to Read Them
- Price above the MA → bullish trend ✅
- Price below the MA → bearish trend ⚠️
The daily MA 200 is a major level watched by professional traders worldwide. When BTC or ETH crosses back above their MA 200, it's a strong signal.
RSI — Relative Strength Index
The RSI measures whether an asset is overbought or oversold. It oscillates between 0 and 100 and appears below the price chart as a separate panel.
| RSI | Signal | |-----|--------| | > 70 | Overbought — price has risen too fast, possible reversal downward | | < 30 | Oversold — price has fallen too fast, possible bounce upward | | 30–70 | Neutral zone |
RSI oversold (< 30) doesn't mean "bad" — it's often a potential buying opportunity when other signals confirm.
Concrete example: ETH rises from $2,000 to $4,000 in two weeks → RSI at 85. Buyers are exhausted, reversal is possible.
Classic mistake: RSI at 80 ≠ "sell now." In a strong bull market, RSI can stay at 80–90 for weeks. That's normal — it just confirms the trend is strong. The RSI indicates extremes, not exact timing.
MACD
The MACD measures momentum — whether the price trend is accelerating or slowing down. It appears below the price chart, separate from the RSI.
The Histogram (Bars) — Start Here
- 🟢 Green bars = buyers are accelerating, the uptrend is gaining strength
- 🔴 Red bars = sellers are accelerating, the downtrend is gaining strength
- Green bars shrinking = the uptrend is slowing → possible reversal downward
- Red bars shrinking = the downtrend is slowing → possible bounce upward
The Two Lines (Going Further)
- MACD line crosses above the Signal line → bullish signal
- MACD line crosses below → bearish signal
In practice: the MACD confirms a trend, it doesn't predict it. Strong support + bullish MACD crossover = a much more reliable signal.
Which Assets to Use These Indicators On
Technical analysis (MA, RSI, MACD, support/resistance) works on any asset with a price history — BTC, ETH, SOL, stocks, forex. The logic is the same everywhere.
But reliability depends on the asset:
BTC/ETH → reliable signals, very liquid market, hard to manipulate. Ideal for beginners.
Small tokens / memecoins → the price can be manipulated by a single large wallet. An RSI at 30 means nothing — the token can keep dropping to zero. Avoid technical analysis on these.
Liquidity pools → different analysis. You look at TVL, APY, and trading volumes — not classic technical indicators.
Simple rule: the smaller and less liquid the market, the less reliable technical analysis is. For beginners: stick to BTC and ETH.
How to Use TradingView
TradingView → tradingview.com
The reference platform, free and used by all professional traders.
Step 1 — Open the ETH chart Go to tradingview.com → search bar → type ETHUSD → select Ethereum / U.S. Dollar
Step 2 — Set the timeframe At the top: 1m 5m 15m 1h 4h 1D 1W → click 1D
Step 3 — Add indicators Click Indicators (fx icon at the top) → search:
- "Moving Average" → set period to 200
- "RSI" → select Relative Strength Index
- "MACD" → select MACD
Step 4 — What you'll see
- A line following the price = MA 200
- Below: a line oscillating between 0 and 100 = RSI
- Below: green/red bars with two lines = MACD
How to Combine Indicators
Never use a single indicator alone — too many false signals.
Example of a strong confluence:
- The price touches a strong support on the 1D ✅
- The MA 200 is just below and holding ✅
- RSI is at 28 (oversold) ✅
- MACD shows red bars shrinking ✅
→ Multiple indicators pointing in the same direction = a much more reliable signal than any single indicator in isolation.