Three Inside Up and Down Pattern: A Beginner's Guide

The three inside up and three inside down are three-candle reversal patterns built on a harami plus a confirmation candle. Here is how they form, what they suggest, and where they fail.

What the Three Inside Up and Down Patterns Are

The three inside up and three inside down are three-candle reversal patterns. They take a simpler two-candle setup called the harami and add a third candle that acts as confirmation. That extra candle is the whole point: it asks the market to "prove" the reversal before you act, which filters out some of the false signals that plague single- and two-candle patterns.

If you are new to reading candles, it helps to first understand candlestick basics (body, wick, open, and close) and the idea of a harami pattern, since both are the foundation here. These patterns appear on any timeframe and any market, including crypto charts for Bitcoin and Ethereum.

Three inside up is a bullish reversal that appears after a downtrend. Three inside down is a bearish reversal that appears after an uptrend. They are mirror images of each other.

The Three-Candle Structure

Both patterns follow the same logic. Candle 1 is large and moves with the existing trend. Candle 2 is a small candle whose body sits inside the body of candle 1 (the harami). Candle 3 confirms the shift by closing beyond candle 1's body in the new direction.

What the structure is telling you, in plain terms:

1. Candle 1 shows the trend still in control. Sellers (or buyers) are dominant.
2. Candle 2 shows momentum stalling. The small inside body means neither side pushed far, a sign of indecision.
3. Candle 3 shows the other side taking over and closing decisively in the new direction. This is the confirmation that separates these patterns from a plain harami.

A Worked Example

Notice that in both cases the confirmation candle does the heavy lifting. Without candle 3 closing past candle 1's body, you only have a harami — a hint, not a confirmed reversal.

How Traders Use It (and Common Mistakes)

A pattern is a starting point, not a complete plan. Traders typically combine the three inside up/down with other context before acting:

• Location matters. The pattern is more meaningful near a clear level. Pairing it with support and resistance helps you avoid acting on a reversal signal in the middle of nowhere.
• Trend context. A reversal pattern needs a prior trend to reverse. In a flat, choppy range, these signals are weaker. Tools like trend following concepts and an indicator such as RSI can add confluence.
• Volume. Stronger confirmation candles, ideally on higher volume, carry more weight than thin, low-conviction ones.

Common mistakes to avoid:

• Jumping in on candle 2. The harami alone is not the pattern. Wait for candle 3 to close.
• Ignoring the close. Candle 3 must close beyond candle 1's body. An intrabar spike that fades does not count.
• Treating it as a guarantee. No candlestick pattern wins every time. Many reversals fail and the prior trend resumes.

Managing Risk Honestly

Candlestick patterns describe a possible shift in sentiment — they do not predict price, and they do not promise a profit. Even a textbook three inside up can fail immediately. That is why risk management matters more than the pattern itself.

Before placing any trade based on this setup, think about your exit before your entry. Consider where the pattern would be invalidated — for a three inside up, a close back below candle 2's low is a common warning. Plan your stop-loss and take-profit levels in advance, and keep your position sizing small enough that a single losing trade does not damage your account. If you trade with borrowed funds, understand crypto leverage and the risk of liquidation, both of which amplify losses on a failed signal. Finally, manage your own emotions — trading psychology often decides outcomes more than any pattern.

This article is educational and is not investment advice. Crypto markets are volatile and you can lose money. Patterns like the three inside up and down are one input among many; they are not a system, a prediction, or a substitute for your own research and risk planning.