When Bitcoin breaches a significant resistance or support level, it often triggers substantial price swings. To make trading decisions, first, confirm the breakout or breakdown with high trading volume. A strong volume validates the move. If it breaks resistance, consider buying, setting a stop - loss just below the newly - broken resistance to limit potential losses. Conversely, on a support breakdown, short - selling might be an option, with a stop - loss above the broken support. Monitor market sentiment around these events, as it can also influence the price's subsequent direction.