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Market structure shifts (MSS)

How break-of-structure flips bias.

11 min · Beginner

What you'll learn

• Distinguish a break of structure (BOS) from a market structure shift (MSS)
• Identify the protected swing that must break for bias to flip
• Plan an entry on the first pullback after a confirmed shift

Key takeaways

• A break of structure continues the trend; a market structure shift breaks the protected swing against it.
• The protected swing is the last higher low in an uptrend or the last lower high in a downtrend.
• Require a candle close, ideally with impulse and volume, to call a shift.
• After a shift, bias goes to neutral first; the entry comes on the pullback that confirms new structure.

Glossary

• Break of structure (BOS) — Price breaking a swing in the direction of the existing trend, a sign of continuation.
• Market structure shift (MSS) — A candle close beyond the protected swing against the trend, signaling bias may flip.
• Protected swing — The last higher low in an uptrend or last lower high in a downtrend; the trend is intact while it holds.

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